Pictures

2025 The 1st surface phonon polaritonic 2D nanocavity device in our group (Jun. 10)

Mansi and Imtiaz fabricated our 1st surface phonon polaritonic two-dimensional nanocavity patterns using the photolithography technique. Congratulations!

2025 Spring Graduate School Commencement Ceremony (May 15)

2025 Imtiaz's Ph.D. Thesis Defense (Apr. 30)

Coupled Surface Plasmon-Phonon Polaritonic Metasurfaces for an Active Control of Long-Wave Infrared Light

Imtiaz Ahmad

Wednesday, April 30, 2025; 10:00 am Central @ Science 103

Committees: Dr. M. Kim (Chair), Dr. Mahdi Sanati, Dr. Juyang Huang, Dr. Ayrton Bernussi, and Dr. Aping Chen (External, CINT Los Alamos National Laboratory).

Dean's representative: Dr. Sunho Lim (CS)

Congratulations, Dr. Ahmad!

2025 T&P Talk - Dr. Kim (Apr. 15)

Dr. Kim gave a T&P talk at a special colloquium in PHAS, TTU.

2025 The Annual Department Banquet (Apr. 11)

Mansi and Mudasir received the Bucy Graduate Scholarship in Applied Physics. Congratulations!!!

2025 Zach's Ph.D. Thesis Defense (Mar. 26)

Infrared Quantum Magneto-Optical Transport in Magnetic Weyl Semimetals RAlGe (R = La, Ce, Pr)

Zachary Brown

Wednesday, March 26, 2025; 10:00 am Central @ Science 103

Committees: Dr. M. Kim (Chair), Dr. Mahdi Sanati, Dr. Wade DeGottardi, Dr. Yun Suk Eo, and Dr. Chase Ellis (External, U.S. Naval Research Laboratory).

Dean's representative: Dr. Ayrton Bernussi (ECE)

Congratulations, Dr. Brown!

2025 APS Global Physics Summit at Anaheim, CA (Mar. 16 - 21)

InfraRed Raiders 2025

(Left) Kim, Zach, Sabrina, Mansi, Yejin, Russell, Imtiaz (Right)

InfraRed Raiders 2025!

Attendees from Physics & Astronomy at Texas Tech University

Imtiaz presented "Far Infrared Resonant Nanocavity Arrays Based on GaAs Surface Phonon Polaritons." (abstract link here)

Sabrina presented "Mid-infrared waveplate based on the resonant nanocavity of silicon carbide coupled surface polaritons." (abstract link here)

Yejin presented "Temperature-dependent infrared spectrum of V(1-x)Mo(x)O(2) single crystals across the metal-to-insulator phase transition." (abstract link here)

Mansi presented "Wide spectral control of long-wave infrared multilayer nanocavity resonances within Reststrahlen band." (abstract link here)

Russell presented "Mid-infrared Photothermal Response in Magnetic Weyl Semimetal PrAlGe." (abstract link here)

Zach presented "Mid-infrared helicity-dependent photovoltaic response of PrAlGe across the ferromagnetic phase transition." (abstract link here)

Dr. Kim presented "Mid-infrared photoresponse of RAlGe (R=La, Ce, Pr) Weyl magnets." (abstract link here)

Short trip to Huntington Beach, California!

Fireworks at Disneyland!

2025 Ramirez Elementary School STEM Night (Jan. 31)

Dr. Kim presents the interferometer demo at the Ramirez Elementary School STEM NIGHT outreach event.

2025 Angelo State University Visit (Jan. 24)

The CMP group visits the physics department at Angelo State University (ASU). Each faculty member presents their condensed matter research to the physics students and faculty members at ASU.

2024 FAMILY STEM NIGHT(Nov. 7)

We presented our interferometer demo at the FAMILY STEM NIGHT outreach event as part of the Physics & Astronomy team at the TTU Student Union Ballroom.

The Physics & Astronomy team, graduate students and faculty members.

2024 The Texas Section APS Meeting at Dallas, TX (Oct. 18)

Ruben attended the Texas Section APS meeting at Southern Methodist University in Dallas and gave a poster presentation.

Ruben presented "Temperature-Dependent Photovoltaic Study in Magnetic Weyl Semimetal PrAlGe."

Ruben received a travel award from Texas Section APS. Congratulations!

2024 Departmental Poster Competition (Oct. 11)

Russell presented "Mid-infrared Photovoltaic Response in Magnetic Weyl Semimetal PrAlGe."

Mansi presented "Far Infrared Nanocavity Resonance Based on GaAs Surface Phonon Polaritons."

Mansi won the 3rd place! Congratulations!

2024 The Annual TechConnect World Innovation Conference & EXPO (Jun. 17-19)

Zach and Dr. Kim attended the Annual TechConnect World Innovation Conference & EXPO in Washington, D.C., and gave a pitch (2024 Innovation Awardees) & poster presentation.

2024 The Annual Department Banquet (Apr. 12)

Imtiaz and Mansi received the Bucy Graduate Scholarship in Applied Physics. Additionally, Imtiaz received the Abdul Hakeem Khan Lodhi Endowed Graduate Fellowship, and Zach received the Peter Seibt Memorial Scholarship! Congratulations, all!

2024 Solar Eclipse Viewing Event (Apr. 8)

Imtiaz, Dr. Kim, and Zach participated in the solar eclipse viewing event in front of the Science Building. Lubbock is close to the path of totality.

The cell phone picture taken through eclispe glasses.

2024 Group photo after a group meeting (Mar. 29)

InfraRed Raiders 2024

(left) Russell, Mansi, Ruben, Yejin, Imtiaz, Kim, Zach, Sabrina (right)

2024 APS March Meeting at Minneapolis, MN (Mar. 3 - 8)

InfraRed Raiders 2024

(Left) Zach, Imtiaz, Kim, Mansi, Yejin (Right)

2024 APS Travel Awards Reception for DCMP.

2024 DCMP Graduate Student Travel Awardees. (From Left) Dr. Paul Chaikin (Chair in DCMP), Imtiaz Ahmad, and awardees. Congratulations, Imtiaz!

(Left) Dr. Sanati, Imtiaz, Dr. Kim (Right)

Dr. Kim served as a session chair at the APS meeting.

Yejin gave her first oral talk titled "Doping and temperature dependence of optical conductivity of Nb(x)V(1-x)O2 single crystals" (abstract link here)

Dr. Kim presented "Active resonant nanocavity based on coupled plasmon-phonon polariton surface waveguide." (abstract link here)

Zach presented "Thermally Tunable Mid-Infrared Polarization Rotation and Ellipticity Based on Active Surface Phonon Polariton Nanocavity Arrays." (abstract link here)

Mansi presented "Multilayer surface waveguide cavity resonance based on coupled surface plasmon-phonon polaritons." (abstract link here)

Imtiaz presented "Active and Passive Tuning of Mid-Far Infrared Surface Phonon Polariton Resonances." (abstract link here)

Dr. Kim presented "Mid Infrared Magneto-optical conductivity of RAlGe (R = La, Ce, Pr) Weyl semimetals." (abstract link here)

Group Dinner at APS March Meeting.

2023 Inventor Celebration (Oct. 19)

Dr. Kim has been named the 2023 Emerging Inventor of the Year for Texas Tech Univ. The award is presented by Dr. Joseph Heppert, Vice President for Research and Innovation at Texas Tech Univ. The Annual Inventor Celebration event is sponsored by the Office of Research Commercialization in partnership with the National Academy of Inventors and Texas Tech University System.

Clockwise: Zach Brown, Dr. Tosha Dupras (Dean, College of Arts & Sciences), Dr. Sung-Won Lee (Chair, Physics & Astronomy), Ian Jones, Cuikun Lin, and Dr. Kim's family.

2023 Departmental Poster Competition (Oct. 6)

Imtiaz presented "Active tunability of surface phonon polaritons resonances by using Vanadium Dioxide-GaAs metasurfaces at far-infrared wavelength of light."

Yejin presented "Doping dependence of optical conductivity of Nb(x)V(1-x)O2 single crystals at the phase transition."

Zach presented "Active Mid-Infrared Polarization Control by a Coupled Surface Plasmon-Phonon Polariton Cavity on VO2-SiC Metasurface."

Dr. Kim served as a poster judge.

2023 NSF MPS Workshop for New Investigators (Jun. 5 - 6)

Dr. Kim participated in the 2023 NSF MPS Workshop for New Investigators in Alexandria, Virginia. (June 5 - June 6)

2023 The Annual Department Banquet (Apr. 28)

Imtiaz and Zach received awards at the Annual Department Banquet. Both received Bucy Graduate Scholarship in Applied Physics. Additionally, Imtiaz received Abdul Hakeem Khan Lodhi Endowed Graduate Fellowship, and Zach received Outstanding Student Innovator!

2023 KPS Spring Meeting at Deajeon, South Korea (Apr. 19 - 21)

Dr. Kim was invited to give a talk at the Pioneer Session on Phonon Spin Transport in the Korean Physical Society Spring Meeting at Deajeon, South Korea. (April 20, 2023, abstract link here)

2023 APS March Meeting at Las Vegas, NV (Mar. 5 - 10)

(Left) Imtiaz, Zach, Satya, Kim, Yejin (Right)

Zach presented "Active mid-infrared polarization control by a coupled surface plasmon-phonon polariton cavity on VO2-SiC metasurfaces" (abstract link here)

Imtiaz presented "Vanadium dioxide-sapphire metasurfaces for actively tunable surface phonon polariton resonances at mid-infrared" (abstract link here)

Yejin presented "Temperature-dependent infrared spectrum of NbxV1-xO2 single crystals at the phase transition" (abstract link here)

Satya presented "Thermally tunable cavity resonance of the propagating surface phonon polaritons based on vanadium dioxide-silicon carbide metasurfaces" (abstract link here)

Kim presented "Determination of the complex optical constants of thin-film vanadium dioxide on polar dielectrics" (abstract link here)

Satya served his first session chair at the APS meeting.

Texas Tech Univ. Condensed Matter Physics Group.

CMP Group Dinner at APS March Meeting.

2023 PHAS Colloquium Talk - Dr. Kim (Feb. 21)

Dr. Kim gave a colloquium talk at the Department entitled "Tailored Infrared Surface Waves - A Novel Probe for Investigating Weyl Magnets." For more information, click here.

2023 Zach and Sabrina win ONR NREIP Award! (Jan. 23)

For more information, click here.

2022 Fall Graduate School Commencement Ceremony (Dec. 16)

2022 Our work is highlighted at social media (Sep. 16)

2022 Satya's Ph.D. Thesis Defense (Jun. 24)

Silicon Carbide Phonon Polaritonic Metasurfaces for An Active Control of Mid-Infrared Light

Satya Kachiraju

Friday, June 24, 2022; 2:30 pm Central @ Science 103

Committees: Dr. M. Kim (Chair), Dr. L. Grave-de-Peralta, Dr. M. Sanati, Dr. A. Bernussi, Dr. S. Kim, and Dr. A. Chen (External, Los Alamos National Laboratory).

Dean's representative: Dr. R. He

Congratulations, Dr. Kachiraju!

2022 Jacob's M.S. Thesis Defense (Jun. 21)

One-Dimensional Topological Nanostructures Utilizing Surface Phonon Polaritons on Silicon Carbide

Jacob Slocum

Tuesday, June 21, 2022; 10 am Central @ Science 103

Committees: Dr. M. Kim (Chair), Dr. W. DeGottardi, and Dr. C. Ellis (External, U.S. NRL)

Congratulations, Jacob!

2022 Bucy lecture speaker Dr. Eric Cornell's visit to our lab (Apr. 5)

Dr. Cornell visited our lab on April 5, 2022. He shared in the 2001 Nobel Prize in Physics for synthesizing the first Bose-Einstein condensate. (left) Kim, Jacob, Imtiaz, Dr. Cornell, Zach (right)

2022 APS March Meeting at Chicago (Mar. 14 - 18)

(left) Imtiaz, Satya, Zach, Jacob, Bryan, Yejin, Kim (right)

Satya presented "Active control of surface phonon polariton resonance using a reconfigurable subwavelength-thin nanostructure." (abstract link here)

Imtiaz presented "Mid-infrared thermal emission from coupled surface plasmon-phonon polariton resonances." (abstract link here)

Jacob presented "Mid-infrared photodetection using a resonant nanocavity array of coupled surface plasmon-phonon polaritons." (abstract link here)

Yejin presented "Mid-infrared anomalous Hall measurement in PrAlGe magnetic Weyl semimetal." (abstract link here)

Bryan presented "Temperature dependent optical conductivity of RAlGe (R = La, Ce, Pr) Weyl semimetal." (abstract link here)

Zach presented "Purcell-enhanced emission of erbium ions in nanocrystals using a tunable Fabry-Perot resonator." (abstract link here)

Dr. Kim presented "Enhanced mid-infrared absorption by coupled surface plasmon-phonon polariton resonances in Fabry-Perot nanocavity array." (abstract link here)

Infra-Red Raiders won 1st place in quiz competition!

Short trip to Chicago downtown

2022 Working in the IR lab (Feb. 2022)

Zach and Imtiaz search for a signal from Er doped YSO crystal

2021 Departmental Poster Competition (Oct. 2021)

Satya gave a presentation of his research about surface phonon polaritonic metasurfaces to the judge.

Zach gave a presentation of his research about the QuEST to the judge.

2021 Group Members (Oct. 2021)

(Left) Imtiaz, Bryan, Yejin, Satya, Kim, Jacob, Zach (Right)

2021 Nanofabrication (Apr. 2021)

Spring 2021, Satya made his first trip to Center for Integrated Nanotechnologies at Sandia National Laboratory for nanofabrication under DOE contract.

(Satya's old fab. days) 2017 - 2018, Satya's 1st and 2nd year in our infrared lab., he successfully made his photonic devices at Microelectronics Research Center (NNIN network), Univ. of Texas Austin and Nanofabrication Facility, Univ. of Houston.

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