News

June 10, 2024: Our work on "Inverse-designed integrated biosensors", is now published in the Optical Materials Express journal!

May 30, 2024: Nasim gave an invited talk on "Near-field Hot Spots Using Patterned Metasurfaces" at the Photonics North 2024 conference. Thank you Pablo Bianucci, Jayshri Sabarinathan, and Mengjie Yu for the invitation.

May 2024: Several of our current and former group members were recognized at the Fowler School of Engineering Senior Celebration. Read more here .

Sophie Pelton, Ponthea Zahraii, and Trey Alexander: "Program Honors" for their research excellence and activities, 

Sophie Pelton: "Outstanding Senior in Computer Engineering " for her academic excellence,

Way to go all!

May 2024:  Congratulations to Lupe for winning the Robert A. Day Excellence in Undergraduate Research Grant, the most prestigious award supporting faculty-mentored student research in the School of Engineering.

May 2024: Sophie and Ponthea had their graduation ceremony today. Ponthea was also the student speaker at the Fowler Commencements Ceremony. All the best in your future journey as graduate students at Duke University (Sophie) and Chapman University (Ponthea). 

May 1, 2024: Ponthea presented her work in the Spring 2024 Student Scholar Symposium. Read more info here .

April 2024Nasim received the Fletcher Jones Foundation Faculty Fellows award in Engineering to develop new optical sensing platforms. Thanks Fletcher Jones Foundation for supporting our research. 

April 2024:  Congratulations to Ponthea for winning the Nachman Innovation Challenge Award, supporting faculty-mentored student research during her research toward Master's thesis. Thanks  to Shlomi Nachman for the generous support

April 2024: Ponthea and Tony presented their works (with Saman and Michael) at the 2024 National Conference on Undergraduate Research (NCUR) in Long Beach California.   Way to go! 

March 7, 2024: Nasim gave an invited seminar on "Wave Interactions with Engineered Meta- and Nano-structures" at the Department of Mechanical Engineering, University of California, Riverside. Thank you Lorenzo Mangolini and Mona Eskandari for the invitation.


March 2024:  Nasim received SOARS award from Chapman Leatherby Libraries! Read more here!

February 2024Congratulations to Ponthea for winning the Robert A. Day Excellence in Undergraduate Research Grant, the most prestigious award supporting faculty-mentored student research in the School of Engineering (more info here). 

December 2023:  Nasim has been amongst the top 2% most cited scientists in 2022, for the third year in a row! Read a short story by Lauren Henderson here.

November 2023: Ponthea and Lupe presented their works at the 2023 Southern California Conference for Undergraduate Research (SCCUR) conference at the California State University, Fullerton.   Way to go! 

November 2023: Our group had another strong representation in the Fall 2023 Student Scholar Symposium. Trey, Sergio, and Lupe presented their amazing works.  Way to go you all! 

Read more info here .

September 2023Estakhri group is presented at the Faculty Research and Creative Scholars Expo

August 24, 2023: Nasim gave an invited talk on "Self-dual systems for backscattering cancellation" at the SPIE Optics+ Photonics, Active Photonic Platforms. Thank you Stavroula Foteinopoulou and Ganapathi Subramania for the invitation.

August 2023Sergio presented the results of his summer research as part of the prestigious SURF fellowship from the Chapman University Center for Undergraduate Excellence. Well done Sergio!

July 2023:  Check out Kalin Richardson's nice write-up about our research and teaching.

July 2023: Nasim presented Estakhri group's research to the 2023 SURF Fellows!

June 30, 2023: Our work on "Adaptive Plasmonic Metasurfaces for Radiative Cooling and Passive Thermoregulation",  in collaboration with Nooshin Estakhri,  is now published as part of Editor's Showcase: Frontiers in Photonics!

May 2023: Alex, Tyler, and Sergio had their graduation ceremony today. All the best in your future journeys!

May 2023:  Nasim Received the Unit Faculty Excellence Award from Fowler. Thanks to all the colleagues for nomination and selection! 

May 2023: Nasim gave two (virtual) invited talks on "Theoretical 2D Surfaces for Arbitrary Near-field Control" and "Deeper Insight into Absorption Anomalies of Singular Nanoparticles" at the URSI International Symposium on Electromagnetic Theory (EMTS). Thank you Andrea Alu, Dimitrios Sounas, Francesco Monticone and Dimitrios C. Tzarouchis, Samel Arslanagic, Richard W. Ziolkowski for the invitations.

May 2023:  Congratulations to Lupe for receiving an Undergraduate Research Grant from the Fowler School of Engineering to support her research during the summer.  Way to go Lupe! 

May 2023: Congratulations to Alex for winning TWO awards at the Fowler School of Engineering Senior Celebration: 

"Program Honors" for his research excellence and activities, 

"Outstanding Senior in Computer Science" for his academic excellence,

Way to go Alex! 

May 2023: Our group was strongly represented at the 2023 Student Scholar Symposium. Tyler, Alex, Sophie, David, and Michael presented their amazing works.  Way to go you all! 

Read this nice article by Lauren Sieberg about the symposium including an interview with Tyler.

April 21, 2023: Our work on "Region-specified inverse design of absorption and scattering in nanoparticles by using machine learning", led by undergraduate researcher Alex Vallone and in collaboration with Nooshin Estakhri,  is now published in Journal of Physics: Photonics!

April 2023Congratulations to Sergio for receiving the prestigious SURF fellowship from the Chapman University Center for Undergraduate Excellence to support his research on acoustic metamaterials.  Way to go Sergio!

April 2023: Trey and David got a shoutout on Fowler Instagram for their CUE awards! 


January 2023: Nasim joined the Editorial Board of IEEE Transactions on Antennas and Propagation, the flagship publication of the IEEE AP-S society,  as an Associate Editor for a three-year term starting January 2023. 

December 23, 2022: Our work on "Emergence of coherent backscattering from sparse and finite disordered media", led by Nooshin Estakhri,  is now published in Scientific Reports!

December 2022:  Congratulations to David and Trey for receiving two Scholarly/Creative Grant Awards from the Chapman University Center for Undergraduate Excellence to support their research on cloaking and 3D printing during the spring.  Way to go! 

November 2022: Alex presented his work on photonic inverse design with machine learning at the 2022 Southern California Conference for Undergraduate Research (SCCUR) conference in Pepperdine University.   Way to go Alex! 

October 2022: Nasim has made it to the worldwide top 2% of scientists database compiled by Stanford University. Full list of Chapman faculty on the list can be found here, Congratulations to all!

September 30, 2022: Nasim presented the Estakhri group's research at the Fowler School of Engineering Partners & Alumni Mixer, Chapman University, Orange, CA.

September 2022:  Estakhri group is presented at the Faculty Research and Creative Scholars Expo

July 15, 2022: Nasim gave an invited talk on "Implementing Arbitrary Aperture Fields in Ultrathin Periodic Surfaces" at the IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting. Thank you Philipp del Hougne and Mohammadreza Imani for the invitation.

May 2022:  Congratulations to David for receiving an Undergraduate Research Grant from the Fowler School of Engineering to support his research on cloaking during the summer.  Way to go David! 

May 2022:  Tyler, Alex, and Andrew presented their work at the "Student Scholar Symposium"! Way to go you all!

April 2022:  Congratulations to Alex for accepting an offer to spend summer at Microsoft Power Query Online! 

March 2022:  Together with Iñigo Liberal, we are organizing a special session on extreme meta-photonics at META 2022. Session is hybrid and both in-person and online talks, with a phenomenal group of invited speakers! More details coming soon! 

February 28, 2022: Nasim gave an invited talk on "Extinction properties of singular plasmonic nanoparticles" at the 150th Minerals, Metals, & Materials Society Annual Meeting & Exhibition: TMS 2022. Thank you Nasrin Hooshmand for the invitation.

February 2022: Nasim joined the Editorial Advisory Board of Journal of Applied Physics as an Early Career member for a two-year term starting January 2022. 

February, 2022:  The Estakhri group is awarded an ERI grant from NSF to create customized optical traps.  Thanks NSF for supporting our research. 

December 20, 2021: Nasim is joining the APL Photonics Editorial Advisory Board for a three-year term starting January 2022. 

December 1, 2021: We have a new preprint on arxiv!  In a nice work led by Nooshin Estakhri, we look into the "Emergence of coherent backscattering from sparse and finite disordered media". 

September 23, 2021: Nasim gave an invited talk on "Self Duality: From Symmetry Protected Transmission to Extreme Wave Funneling and Zero Backscattering" at the 15th International Congress on Artificial Materials for Novel Wave Phenomena-Metamaterials. Thank you Carsten Rockstuhl for the invitation.

August 2021: Congratulations to our undergraduate researcher "Gabriela Pinto" for starting a new full-time internship at  Intel! Good luck in the new job Gabriela! 

21 July 2021: Nasim gave an invited talk on the "Interplay of Absorption and Scattering in Metal-Dielectric Cylinders: Extreme Refractive Index Limits and Response Sensitivities" at the META 2021, the 11th International Conference on Metamaterials, Photonic Crystals and Plasmonics. Thank you Nicolò Maccaferri, Vincenzo Caligiuri and Mario Miscuglio  for the invitation and the great session. 

May 2021: Congratulations to our undergraduate researcher "Gabriela Pinto" for being admitted to the 2021 NSF REU program in LS&T at Worcester Polytechnic Institute! 

May 2021: Checkout our work on artificial birefringence with metasurfaces at the 2021 virtual CLEO conference:


Artificial Birefringence with Moving Metasurfaces,

Nasim Mohammadi Estakhri, Nader Engheta

May 11, 2021 from 12:00 PM to 2:00 PM (PDT)  (Joint Poster Session I Tuesday)

28 April  2021: Nasim received the "2021 Faculty Opportunity Funds" from Chapman University! Thank you Office of Research for your support. Announcement here

March  2021: Andrew Wells, Chase Appleton, Tyler Woo, Brandon Camp, Jessica Trawick, and Alex Vallone joined our group as undergraduate researchers. Welcome to the group! 

February 2021: Gabriela Pinto joined our group as an undergraduate researcher. Welcome Gabriela! 

November 3, 2020:  Our paper on "Tunable metasurface-based waveplates- A proposal using inverse design" is now published in Comptes Rendus Physique (French Academy of Sciences) special issue on Metamaterials!

August 2020:  Check out the nice article by Chapman Newsroom about new Faculty and staff joining Fowler School of engineering in Fall 2020.  More info can be found in the Fowler Spring update here

May 2020: I am presenting our work on self-duality induced Kerker condition at the 2020 virtual CLEO conference:


Generalized Class of Kerker Particles: Self-Duality and Zero Backscattering, 

Nasim Mohammadi Estakhri, Raphael Kastner, Nader Engheta

May 13, 2020 from 11:30 AM to 1:00 PM  (Joint Poster Session Wednesday)

Spring 2020: I am giving seminars at several schools this Spring, as will be updated below. Attend my talk on "Designer Matter: New Frontiers in Wave Interactions with Meta- and Nano-structures" if you are interested in learning about metamaterials!

13 March, 2020: Department of Electrical Engineering, University at Buffalo, The State University of New York, Buffalo, NY.

2 March, 2020: School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ.

20 February, 2020: School of Engineering, University of St. Thomas, St. Paul, MN.

12 February, 2020: Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX.

3 February, 2020: Fowler School of Engineering, Chapman University, Orange, CA.

23 January, 2020: Department of Electrical and Systems Engineering, Washington University in St. Louis, St. Louis, MO. 

January 22, 2020: Our paper on Electromagnetic Funnel: Reflectionless Transmission and Guiding of Wave through Subwavelength Apertures in collaboration with Prof. Raphael Kastner is now published in Physical Review Letters. 

December 23, 2019: Our paper on "Tunable metasurface-based waveplates- A proposal using inverse design" is accepted for publication in Comptes Rendus Physique (French Academy of Sciences) special issue on Metamaterials!

December 16, 2019:  We have received the Public University of Navarra (UPNA) 2019 Research Prize for the best scientific contribution made during the years 2017 and 2018 in the Area of Exact, Biological, Medical and Technological Sciences at UPNA for our work on "Experimental Demonstration of Metasurface-Based Ultrathin Carpet Cloak for Millimetre Waves" with colleagues Bakhtiyar Orazbayev, Andrea Alù, and Miguel Beruete! [Link]

November 21, 2019: Our paper on Solving Equations with Metamaterials has been published in the special issue of Optics and Photonics News, Year in Optics, featuring the best research in optics published in 2019.

October 18, 2019: Our paper on "Electromagnetic Funnel: Reflectionless Transmission and Guiding of Wave through Subwavelength Apertures" is accepted for publication in Physical Review Letters!

October 17, 2019: Invited talk on "Inverse-designed Metastructures to Solve Linear Equations" at the 17th International System-on-Chip (SoC) conference, , University of California, Irvine (Calit2), Irvine, CA. 

http://www.socconference.com/

October 5, 2019: Invited talk on "Seeing without being seen: A recipe to hide an antenna" at the 2019 Gotham-Metro Condensed Matter Meeting, New York University (Rosenthal Pavilion), New York, NY. 

October 4, 2019: Our paper on Solving Equations with Metamaterials has been accepted for publication in Optics and Photonics News, Year in Optics, as one of the featured highlights for optics research in 2019.  

September 30, 2019: I am joining the APL Photonics Early Career Editorial Advisory Board for a two-year term of 2020-2022. The Early Career Editorial Advisory Board advise the Editors of APL Photonics on matters of specific importance to early career researchers, on the scientific and educational content of the journal, and on matters of editorial policy.  [See the announcement here]

https://aip.scitation.org/app/info/advisory

July 11, 2019: Our paper on "Experimental Demonstration of Metasurface-Based Ultrathin Carpet Cloak for Millimeter Waves" has been featured in the 2019 "Metasurfaces" virtual issue highlighting recent cutting-edge research in this area. 

B. Orazbayev, N. Mohammadi Estakhri, A. Alù, and  M. Beruete , “Experimental Demonstration of Metasurface-Based Ultrathin Carpet Cloak for Millimeter Waves,” Advanced Optical Materials, Vol. 5, no. 1, January 2017. Copyright 2017 by Advanced Optical Materials.

June 5, 2019: Check out this nice article by Christine Middleton in Physics Today covering our recent work on metamaterial analog computing. 

March 2019: Our paper on using inverse-designed metamaterials to solve systems of linear equations is published in Science magazine, and covered by several news outlets including Penn Today, Phys.org, Science Daily, The Daily Pennsylvanian, COSMOS, The Naked Scientists, Physics world, Photonics.com, and Medium.

Photo taken by Eric Sucar, UPenn photographer.  

January 2019: I have been selected as one of Caltech's 2019 "Young Investigator Lecturers in Engineering and Applied Science." I will give a seminar in Caltech in March 2019 about my recent research works.

You can find the seminar flyer here:

October 2018: Check out the article by Nicholas Wang in the October issue of IEEE Photonics Society Newsletter on recent IPS Gradate Fellows. [Link]. 

August 21, 2018: Our paper titled "Low-Threshold Lasing and Coherent Perfect Absorption in the Generalized PT-Symmetric Optical Structures," in collaboration with Prof. Chen's group at University of Illinois-Chicago, has been published in Physical Review Applied. [Link]

M. Sakhdari, N. Mohammadi Estakhri, H. Bagci, and P. Y. Chen, Physical Review Applied, Vol. 10, No. 2 (8 Pages) 024030, August 21, 2018. Copyright 2018 by the American Physical Society.

 July 2018: We have two contributions at the 2018 IEEE AP-S/URSI Symposium, Boston, MA:

Title: Flat Optical Mach-Zehnder Interferometer based on Gradient Metasurfaces

Session: Functional Material Platforms Enabling Exotic Scattering Phenomena

Time: Wednesday, July 11, 09:00 - 09:20

Title: Wide Scan, Wideband Arrays with Self-Dual Point-Like Elements

Session: Wideband and UWB Array Radiators

Time: Tuesday, July 10, 16:00 - 17:40

June 22, 2018:  I have been selected as a speaker at the upcoming Plasmonics and Nanophotonics Gordon Research Seminar. Few research abstracts are selected by the conference chair to be presented at this 1-day seminar. The focus of this meeting is on innovations in nanoscale light-matter interactions using plasmonic and resonant dielectric nanostructures, which enable and enhance applications in biomedical science, energy generation and storage, and quantum information technology. 

My talk titled "Flat Optics: Ultra-Compact Optical Devices Enabled by Dielectric Metasurfaces".

 June 11, 2018:  I have been selected to participate in the "Rising Stars in EECS 2018" Workshop at MIT! This prestigious workshop identifies and mentors outstanding women in electrical engineers and computer scientists interested in exploring careers in academia. See more information here. I have also been selected as the "Rising star in EECS" in 2017 by Stanford University. 

June 2018: I am attending the prestigious International Microwave Symposium (IMS 2018), with a contributed talk on "Wideband, Periodically Arranged Self-Dual Subwavelength Waveguides". This year IMS is held at Philadelphia convention center!

 

May 2018: My advisor is giving a plenary talk at CLEO this year. If you attend CLEO, mark your calendars for his talk on Tuesday morning (May 15th).

 

May 2018: I am attending the 2018 CLEO conference with two contributed presentations on Metasurface-based optical elements (poster presentation on Wednesday May 16th), and Mathematical equation solving with MZI networks (see Mario's talk on Friday May 18th). 

 

April 30, 2018: Our paper titled "Enhanced Photoresponse in Metasurface-Integrated Organic Photodetectors," has been published in Nano Letters. [Link]

April 30, 2018: Our paper in collaboration with colleagues at the UT-Austin ECE and ME departments, titled "Enhanced Photoresponse in Metasurface-Integrated Organic Photodetectors," has been accepted for publication in Nano Letters. This work provides experimental evidence on practical applications of gradient metasurfaces for enhanced photodetection and solar energy conversion, proposed in my earlier works [Related publication can be found here].

 

April  2018: I have been selected to attend the prestigious “2018 Gordon Research Conference (GRC) on Plasmonics and Nanophotonics” and the associated “Gordon Research Seminar (GRS)” with my abstract titled "Flat Optics: Ultra-compact Optical Devices Enabled by Dielectric Metasurfaces".

March  2018: I received the "DMP Post-Doctoral Travel Award" to attend APS March meeting 2018, Los Angeles, CA. These awards are presented and funded through the APS Division of Materials Physics (DMP), through a very competitive process.

 March  2018: I am attending the 2018 APS March meeting with a contributed talk on computational capabilities of EM waves.  

January  2018: Our review paper on "Recent progress in Gradient Metasurfaces" has been one of the most downloaded papers from The Journal of the Optical Society of America B, in January 2018.

 January  2018: I am presenting two paper at the 2018 SPIE Photonics West on "near-field engineering" and "metamaterial-based equation solving". 

 

November 6, 2017: I am attending the "Rising Stars in EECS 2017" Workshop, at Stanford University, presenting my research on "Computational meta-platforms: Using light to solve mathematical equations". For event details see here.  

 

October 25, 2017: Invited seminar on "Wave-matter Interactions to Solve Integral Equations" at the Electrical and Computer Engineering Department, Wayne State University.  

 

August 4, 2017: I have been selected to participate in the "Rising Stars in EECS 2017" Workshop, at Stanford University! This workshop brings top graduate and postdoc women in EECS together for sci-entific discussions and informal sessions aimed at navigating the early stages of an academic career. See more information here.

 July 10, 2017: I am presenting my work on metaplatforms for solving Integral Equations with waves at the IEEE AP-S/URSI Symposium, San Diego, CA.

 

June 26, 2017: Our paper titled "Cascaded Exciton Energy Transfer in a Monolayer Semiconductor Lateral Heterostructure Assisted by Surface Plasmon Polariton," has been published in Nature Commutations. [Link]

 

May 28, 2017: I received the International USNC-URSI Travel Grant 2017 to support the participation in the 32nd International Union of Radio Science General Assembly and Scientific Symposium in Montreal, Québec, Canada.

 

May 18, 2017: I am presenting my recent works on solving Integral Equations with metamaterial structures at the CLEO conference, San Jose, CA.


April 28, 2017: Our paper in collaboration with colleagues at the UT-Austin physics department, titled "Cascaded Exciton Energy Transfer in a Monolayer Semiconductor Lateral Heterostructure Assisted by Surface Plasmon Polariton," has been accepted for publication in Nature Commutations.

January 23, 2017: Our paper in collaboration with colleagues at AMOLF, titled "Visible Light, Wide-Angle Graded Metasurface for Back Reflection" has been accepted for publication in ACS Photonics and published online.[Link]

N. Mohammadi Estakhri, V. Neder, M. Knight, A. Polman, and A. Alu, ACS Photonics, Vol. 4, No. 2, pp 228-235, January 23, 2017. Copyright 2017 by the American Chemical Society.

 November 15, 2016: Our paper titled "Experimental Demonstration of Metasurface-Based Ultrathin Carpet Cloaks for Millimeter Waves" has been published in Advanced Optical Materials. [Link]

October 14, 2016: Our paper titled "Wave-front Transformation with Gradient Metasurfaces" has been published in Physical Review X. [Link]

https://journals.aps.org/prx/abstract/10.1103/PhysRevX.6.041008
N. Mohammadi Estakhri and Andrea Alu, Physical Review X, Vol. 6, No. 4, 041008 (17 pages), October 14, 2016. Copyright 2016 by the American Physical Society.

 September 23, 2016: Our paper in collaboration with colleagues at Universidad Pública de Navarra, titled "Experimental Demonstration of Metasurface-based Ultrathin Carpet Cloak for Millimetre Waves" has been accepted for publication in  Advanced Optical Materials.

 

August 18, 2016: Our paper on fundamental limitations of passive metastases, titled "Wave-front Transformation with Gradient Metasurfaces," has been accepted for publication in Physical Review X.

 

August 8, 2016: I joined Engheta group at Upenn!

July 27, 2016: I have been selected as the recipient of 2016 IEEE Photonics Society Graduate Student Fellowship.

http://ewh.ieee.org/soc/photonics/cms/award-winners/Graduate%20Student%20Fellowship

 July 2016: I am presenting a poster at the Gordon Research Conference on Plasmonics and Nanophotonics: From Plasmonic Fundamentals to Nanooptical Applications in Sunday River Newry, ME. I will discuss my recent works on the unique scattering properties of parity-time symmetric nanoparticles. 

June 2016: I have successfully defended my doctorate dissertation and obtained my PhD at the ECE department, University of Texas at Austin. My Dissertation titled: Manipulating Light-Matter Interactions with Plasmonic Metamolecules and Metasurfaces: A Route to Control Absorption and Scattering at the Nanoscale.

http://www.ece.utexas.edu/

May 2016: I have been selected to attend the prestigious “2016 Gordon Research Conference (GRC) on Plasmonics and Nanophotonics” and the associated “Gordon Research Seminar (GRS)” with my abstract titled "Plasmonic Nanoparticles to Enable Parity-Time Symmetry Breaking at the Nanoscale".

December 2015: Our invited review paper titled "Recent Progress in Gradient Metasurfaces" has been published in Journal of the Optical Society of America B, Special Feature Issue on Electromagnetic Metasurfaces. [Link]

https://www.osapublishing.org/josab/abstract.cfm?uri=josab-33-2-A21

November 2015: I am presenting my PhD research work at the Dionne group, Stanford, CA. 

July 2015: Our invited paper titled "Graded Metascreens to Enable a New Degree of Nanoscale Light Management" has been published in Philosophical Transactions A, Special Issue on Spatial Transformations: from Fundamentals to Applications. [Link]

http://rsta.royalsocietypublishing.org/content/373/2049/20140351
N. Mohammadi Estakhri, Christos Argyropoulos, and Andrea Alu, Philosophical Transactions A, Vol. 373, Issue 2049, pp. 20140351, (15 pages), July 27, 2015. Copyright 2015 by the Royal Society Publishing.

June 2015: I am presenting my work on advanced wave manipulation with metasurfaces at the 11th International Conference on Optics of Surfaces and Interfaces (OSI-11), Austin, TX.

 

May 2015: I am presenting my recent works on parity-time symmetric nanoparticles at the CLEO conference, San Jose, CA.

 

May 2015: Our paper in collaboration with colleagues at Universidad Pública de Navarra, titled "Terahertz Carpet Cloak Based on a Ring Resonator Metasurface" has been published in Physical Review B. [Link]


May 2015: Our paper in collaboration with colleagues at the physics department, titled "Tailoring Plasmonic Enhanced Upconversion in Single NaYF4:Yb3+/Er3+ Nanocrystals" has been published in Scientific Reports. [Link] 


April 21, 2015: I served as a Judge at the 5th Annual Cockrell School of Engineering Undergraduate Poster Exhibition.  

January 2015: Our invited paper titled "Ultrathin Carpet Cloaking and Wavefront Reconstruction with Graded Metasurfaces" has been published in IEEE Antennas and Wireless Propagation Letters, Special Cluster on Transformation Electromagnetics. [Link]

http://ieeexplore.ieee.org/document/6960844/?arnumber=6960844&tag=1
N. Mohammadi Estakhri and Andrea Alu, AWPL, Vol. 13, pp. 1775-1778, January 28, 2015. Copyright 2014 by IEEE.

January 2015: Our invited paper titled "Ultrathin Carpet Cloaking and Wavefront Reconstruction with Graded Metasurfaces" has been published in IEEE Antennas and Wireless Propagation Letters, Special Cluster on Transformation Electromagnetics. [Link]

September 2014: Our paper in collaboration with colleagues at the physics department, titled "Intrinsic Optical Properties and Enhanced Plasmonic Response of Epitaxial Silvers" has been published in Advanced Materials. [Link]

June 2014: Our paper titled "Manipulating Optical Reflections Using Engineered Nanoscale Metasurfaces" has been published in Physical Review B. [Link] 

https://journals.aps.org/prb/abstract/10.1103/PhysRevB.89.235419
N. Mohammadi Estakhri and Andrea Alu, Physical Review B, Vol. 89, No. 23, 235419 (8 pages), June 16, 2014. Copyright 2014 by the American Physical Society.

 May 2014: I have successfully defended my doctorate proposal at the ECE department, University of Texas at Austin. My proposal titled: Shaping Optical Scattering, Absorption and Radiation with Plasmonic Metamaterials and Metasurfaces

April 28, 2014: I have received 2014 Professional Development Award from The University of Texas at Austin, Graduate School to support participation in the 2014 MRS Spring Meeting &Exhibit in San Francisco, CA, USA. 

https://gradschool.utexas.edu/

 April 15, 2014: I have received a Student Travel Grant Award  from United States Department of Energy to support the participation in the 2014 MRS Spring Meeting &Exhibit in San Francisco, CA, USA. 

http://www.mrs.org/spring2014/

April 2014: I am presenting two papers on "How to Hide A Good Receiver" and "Efficient Nanoscale Wave Manipulation" at the MRS Spring Meeting, San Francisco, CA.   


April 2014: Our invited paper titled "Tunable Plasmonic and Hyperbolic Metamaterials" has been published in International Journal of Antennas and Propagation, Special Issue on ‘Reconfigurable Electromagnetics through Metamaterials. [Link] 


March 26, 2014: I am presenting a poster titled "Invisible probes: seeing without being seen" at 13th Annual Nano Night Poster Session, Austin, TX.  

March 2014: Our paper titled "Minimum-scattering Superabsorbers" has been published in Physical Review B, Rapid Communications. [Link]

https://journals.aps.org/prb/abstract/10.1103/PhysRevB.89.121416
N. Mohammadi Estakhri and Andrea Alu, Physical Review B, Rapid Communications, Vol. 89, No. 12, 121416(R) (5 pages), March 31, 2014. Copyright 2014 by the American Physical Society.

 February 2014: I am volunteering at the Cockrell School of Engineering "Introduce a Girl to Engineering Day" event!  


January 2014: I am presenting my work on the metasurface-based wave manipulation and control at the nanoscale at the URSI-USNC National Radio Science Meeting, Boulder, CO. 


December 3, 2013: I have received 2014 USNC-URSI Travel Fellowship Grant Award to support the participation in the 2014 USNC-URSI National Radio Science Meeting in Boulder, CO, USA. 


July 29, 2013: I have received the 2013 George J. Heuer, Jr. Ph.D. Endowed Graduate Fellowship from The University of Texas at Austin. 

 

July 2013: I am presenting my work on minimum-scattering super-absorbers and gradient metasurfaces at the IEEE International Symposium on Antennas and Propagation, Lake Buena Vista, FL.

 

June 2013: Our invited paper titled "Negative Refraction, Gain and Nonlinear Effects in Hyperbolic Metamaterials" has been published in Optics Express, Focus Issue on Hyperbolic Metamaterials: Fundamentals and Applications. [Link]

 

May 2013: Our paper titled "Full Control of Nanoscale Optical Transmission with a Composite Metascreen" has been published in Physical Review Letters and has been selected as PRL Editor’s suggestion. [Link]

May 2013: Our paper titled "Physics of Unbounded, Broadband Absorption/Gain Efficiency in Plasmonic Nanoparticles" has been published in Physical Review B. [Link]

https://journals.aps.org/prb/abstract/10.1103/PhysRevB.87.205418
N. Mohammadi Estakhri and Andrea Alu, Physical Review B,, Vol. 87, No. 20, 205418(9 pages), May 10, 2013. Copyright 2013 by the American Physical Society.

March 18, 2013: My paper on "Controlling the Optical Wave Propagation Using Engineered Nanoscale Metasurfaces" have received honorable mention in 2013 IEEE AP-S International Symposium on Antennas and Propagation, Orlando, Florida.

http://www.2013apsursi.org/

 February 22, 2013: I won 4th place and 500$ prize at the 3rd Annual UT Energy Forum-Texas Energy Research Challenge, Austin, TX, with my poster titled "Manipulating optical wave propagation with engineered nanoscale thin metasurfaces for light trapping solar cells". 

http://www.uta.edu/ee/NanoBioLab/Docs/UT-Energy-Forum-2013-Program.pdf

 February 2013: I am presenting a poster at the 3rd Annual UT Energy Forum-Texas Energy Research Challenge, Austin, TX. I will discuss applications of gradient metasurfaces for enhanced absorption in light trapping solar cells.   


January 2013: I am presenting my work on anomalous absorption in plasmonic nanoparticle geometries at the URSI-USNC National Radio Science Meeting, Boulder, CO. 

 

November 29, 2012: I have received 2013 USNC-URSI Travel Fellowship Grant Award to support the participation in the 2013 USNC-URSI National Radio Science Meeting in Boulder, CO, USA. 

 

August 2012: I have received a Grace Hopper Conference Scholarship from Department of Electrical and Computer Engineering, The University of Texas at Austin, to support participation in the Grace Hopper Celebration of Women in Computing Conference, Baltimore, MD, 2012.

 

July 2012: I am presenting my work on the paradoxical behavior of composite nanoparticles with sharp corners, at the IEEE International Symposium on Antennas and Propagation, Chicago, IL.

 

June 2012: I am presenting a poster at the Gordon Research Conference on Plasmonics: Light Matter Interaction at the Nanoscale in Colby College, ME. I will discuss my recent works on the paradox of finite absorption in ‘zero’-Loss composite plasmonic nanoparticles.

 

April 2012: I have been selected to attend the prestigious “2012 Gordon Research Conference (GRC) on Plasmonics” and the associated “Gordon Research Seminar (GRS)” with my abstract titled "The Paradox of Finite Absorption in ‘Zero’-Loss Composite Plasmonic Nanoparticles".

March 2012: I received first rank among all graduate engineering students in the College of Engineering (Fanni), University of Tehran for my Master of Science studies. I was honored and awarded by the College of Engineering Dean during the 71nd graduation ceremony of College of Engineering (Fanni).