Meenakashi Patwal, Deepti Jain, D S Rawal, and Ajeet Kumar, “Simulation Strategies for Coupling Coefficient in Laterally Coupled Distributed Feedback Laser with Metal Surface Gratings”, In ICAMNOP-2023 at DTU, Delhi.
Gurmeet Singh, Shubham Sharma, Ajeet Kumar, “Design and Simulation of Solid-Core Octagonal Photonic Crystal Fibre for Terahertz Wave Propagation”, Photonics-2023, during 5-8 July, 2023 at IISc Bengaluru
Priyanka, Babita, Ajeet Kumar, “Chalcogenide double clad fiber with near zero flattened dispersion”, International Conference on Advanced Materials for Emerging Technologies (ICAMET-2023) 4th -6th May 2023 at NSUT, Delhi
Meenakashi Patwal, Deepti Jain, DS Rawal,and Ajeet Kumar, “Optimizing DFB Laser Diode Performance through Facet Reflectivity Control” in the 2nd International Conference on Advanced Functional Materials and Devices (AFMD-2023) March 13-15th March, 2023, Delhi
Meenakshi Patwal, Deepti Jain, Alok Jain, and Ajeet Kumar, “ Simulation studies for mode profile analysis in single mode high power asymmetric large optical cavity laser structure,” in 5th International conference on Emerging Electronics, IIT Delhi, 26-28th November, 2020
Raghav Bansal, Saaransh Pandey, Pooja Chauhan, and Ajeet Kumar, “Numerical analysis of linear and nonlinear aspects of chalcogenide based step-index fiber”, p. 36, International OSA Network of Students (IONS), Indian Institute of Technology Delhi, New Delhi, India, 2020.
Rohan Sharma, Surleen Kaur, Pooja Chauhan, and Ajeet Kumar, “Numerical modeling of rib waveguide of GeSe2-As2Se3-PbSe chalcogenide glass for infrared supercontinuum generation”, p. 43, International OSA Network of Students (IONS), Indian Institute of Technology Delhi, New Delhi, India, 2020. (Best Poster Presentation Award)
Anushka Nagpal, Alankrit Tomar, Pooja Chauhan, and Ajeet Kumar, “Design and analysis of rectangular porous-core photonic crystal fibre for low-loss terahertz communication”, International Conference on Optics & Electro-Optics (ICOL), Instruments Research & Development Establishment, Dehradun, India, 2019.
Alankrit Tomar, Anushka Nagpal, Pooja Chauhan, Ajeet Kumar, “Graduating hexagonal ring porous-core photonic crystal fibre for terahertz communication”, International Conference on Optics & Electro-Optics (ICOL), Instruments Research & Development Establishment, Dehradun, India, 2019.
Atul Bhardwaj, Lalita Agarwal, Ajeet Kumar, and R. K. Sinha “Inter pulse amplified spontaneous emission (ASE) reduction through pulsed pumping in Er: Yb co-doped pulsed fiber laser amplifier at 1 kHz”,TP 039, PHOTONICS: International Conference on Fiber Optics and Photonics, IIT Delhi, New Delhi, India, 2018. ISBN 978-93-88653-41-1
Ayush Paliwal, Jorawar Singh Dham, and Ajeet Kumar, “ Computational analysis of field enhancement due to nanocrescent dimer” TP 135, PHOTONICS: International Conference on Fiber Optics and Photonics, IIT Delhi, New Delhi, India, 2018. ISBN 978-93-88653-41-1
Vikas Tyagi, Ajeet Kumar, and Than Singh Saini, “Design and analysis of AsSe2 chalcogenide waveguide for on-chip supercontinuum source”, TC2-C2, PHOTONICS: International Conference on Fiber Optics and Photonics, IIT Delhi, New Delhi, India, 2018. ISBN 978-93-88653-41-1
Tanya Garg, Pooja Chauhan, and Ajeet Kumar, “Design and modeling of As2Se3 based golden spiral photonic crystal fiber for supercontinuum generation”, FP027, PHOTONICS: International Conference on Fiber Optics and Photonics, IIT Delhi, New Delhi, India, 2018. ISBN 978-93-88653-41-1
Shanu Kumar, Pooja Chauhan, and Ajeet Kumar, “Design and Analysis of Double V- Shaped Nanoantenna”, FP067, PHOTONICS: International Conference on Fiber Optics and Photonics, IIT Delhi, New Delhi, India, 2018. ISBN 978-93-88653-41-1
Rahul Kumar, Pooja Chauhan, and Ajeet Kumar, “A decagonal chalcogenide doped photonic crystal fiber for slow light generation”, TP114, PHOTONICS: International Conference on Fiber Optics and Photonics, IIT Delhi, New Delhi, India, 2018. ISBN 978-93-88653-41-1
Pooja Chauhan, Ajeet Kumar, Yogita Kalra, and Than Singh Saini, “A rectangular core photonic crystal fiber for nonlinear applications”, International Conference on Advances in Science and Technology (ICAST), p. 109, SKIT, Jaipur, India, 2018
Shanu Kumar, Pooja Chauhan, and Ajeet Kumar, “Design and analysis of double V-shaped nanoantenna”, International Conference on Advances in Science and Technology (ICAST), p. 110, SKIT, Jaipur, India, 2018.
Pooja Chauhan, Ajeet Kumar, Yogita Kalra, Than Singh Saini, “Design and analysis of a chalcogenide step-index fiber for nonlinear applications”, IEEE International Conference on Photonics and High Speed Optical Networks (ICPHON- 2018), Department of Electronics and Communication Engineering, S. A. Engineering College, Chennai, Tamil Nadu, India, pp. 79-82, 2018
R Kumar, A Kumar, “Stimulated Brillouin Scattering Based Tunable Slow Light in Hexagonal As2Se3 based Chalcogenide Photonic Crystal Fiber,” IEEE International Conference on Photonics and High Speed Optical Networks (ICPHON-2018), Department of Electronics and Communication Engineering, S. A. Engineering College, Chennai, Tamil Nadu, India, pp. 83-85, 2018
Pooja Chauhan, Ajeet Kumar, Yogita Kalra, Than Singh Saini, “Design and analysis of a photonic crystal fiber in Ga8Sb32S60 chalcogenide glass for nonlinear applications”, National Conference on Advanced Materials and Nanotechnology (AMN-2018), p. 141, Department of Physics and Material Science & Engineering, Jaypee Institute of Information Technology, Noida, UP, India
Pooja Chauhan, Ajeet Kumar, Yogita Kalra, Than Singh Saini, “A rectangular-shaped photonic crystal fiber for nonlinear applications”, National Student Conclave & Seminar on Science, Technology &Innovation-2018, p. 79, Amity University, Noida, U.P., India
Pooja Chauhan, Ajeet Kumar, Yogita Kalra, ”An organic liquid core photonic crystal fiber for nonlinear applications”, workshop on Optics & Photonics : Theory & Computational Techniques (OPTCT-2018), p. 08, Department of Physics, IIT-ROORKEE, UP, India.
Alankrit Tomar, Lakshay Gautam, Ajeet Kumar, “Rectangular –core photonic crystal fibre for low-loss Terahertz communication,” International conference on advances in optics and photonics, November 23- 26, pp. 256-258, 2017
Ayush Paliwal, Jorawar Singh Dham Ajeet Kumar, “Design and analysis of crescent shaped nanoantenna for visible regime,” International conference on advances in optics and photonics, November 23- 26, pp. 256-258, 2017
A.G.N Chaitanya, Than Singh Saini, Ajeet Kumar, “Dispersion engineered graded index photonic crystal fiber for nonlinear applications”, Conf. Proc. OSA Young Student Congress on PhotonicTechnology, MNIT, Jaipur, India, April 16 – 17, OSA_YSC_103, 7 – 10 (2016) (Received Best Oral Presentation Award).
ApurvaTewari, Than Singh Saini, Ajeet Kumar, “Design and analysis of As2Se3 based chalcogenide rib waveguide for slow light applications”, Conf. Proc. OSA Young Student Congress on PhotonicTechnology, MNIT, Jaipur, India, April 16 – 17, OSA_YSC_104, 10 – 12 (2016).
Himanshu Pandey, Than Singh Saini, Ajeet Kumar, “Design and Analysis of Highly Nonlinear Rib Waveguide Structure for the Generation of Slow Light”, Conf. Proc. OSA Young Student Congress on Photonic Technology, MNIT, Jaipur, India, April 16 – 17, OSA_YSC_114, 35 – 37 (2016).
Purniya Jamatia, Than Singh Saini, Ajeet Kumar, “Design and analysis of a highly nonlinear composite photonic crystal fiber”, Conf. Proc. OSA Young Student Congress on Photonic Technology, MNIT, Jaipur, India, April 16 – 17, OSA_YSC_115, 38 – 40 (2016) (Best Poster Presentation Award).
Than Singh Saini, Ajeet Kumar, Ravindra Kumar Sinha, “Design of large-mode-area microstructured optical fiber with single-mode operation for high power fiber lasers,” International workshop & conference on Frontiers of Spectroscopy (ICFS-2015), Banaras Hindu University, Varanasi, India, 8 – 9 & 10 – 12 January 2015.
Than Singh Saini, Ajeet Kumar, Ravindra Kumar Sinha, “Design and analysis of a nano-fiber with all-normal and flat dispersion for supercontinuum generation,” International Conference on Recent cognizance in wireless communication & image processing-ICRCWIP-2014, Poornima Institute of Engineering & Technology, Jaipur, India, 16 – 17 January 2015.
Ajeet Kumar, Than Singh Saini, Kishor Dinkar Naik, Ravindra Kumar Sinha, “Design and analysis of rectangular-core large-mode-area photonic crystal fiber,” International Conference on Recent cognizance in wireless communication & image processing-ICRCWIP-2014, Poornima Institute of Engineering & Technology, Jaipur, India, 16 – 17 January 2015.
T. S. Saini, A. Kumar, R. K. Sinha, “Design and analysis of highly nonlinear microstructured fiber for supercontinuum generation,” IONS ASIA-6, 12th International conference on Fiber Optics and Photonics, IIT Kharagpur, December 13-16, 2014, (Best Paper Award).
Than Singh Saini, Ajeet Kumar and Ravindra Kumar Sinha, "Design and analysis of large mode area photonic crystal fiber with low bend loss", in International Conference on Optics and Optoelectronics –ICOL, pp. 94, 2014, Dehradun.
A. Baili, T. S. Saini, R. Cherif, M. Zghal, A. Kumar and R. K. Sinha, "Mid-IR supercontinuum broadening in a highly nonlinear As2Se3 nanofiber with low confinement loss", in International Conference on Optics and Optoelectronics –ICOL, pp. 67, 2014, Dehradun.
Vinita Dahiya, Ajeet Kumar, Vipul Rastogi and Ravindra Kumar Sinha, "Biperiodic Waveguide Structure based Photonic Crystal Gas Sensor", in International Conference on Optics and Optoelectronics –ICOL, pp. 270, 2014.
Vinita Dahiya, Ajeet Kumar, Vipul Rastogi and Ravindra Kumar Sinha , “Implementation of RI Sensor using Biperiodic Waveguide Structure in Photonic Crystal,” in Workshop on Recent Advances in Photonics (WRAP), 17-18 Dec. 2013, IIT Delhi, INDIA
T. S. Saini, A. Kumar, and R. K. Sinha, "Two-core photonic crystal fiber with zero intermodal dispersion at 1.064 μm wavelength", in Workshop on Recent Advances in Photonics (WRAP), 17-18 Dec. 2013, IIT Delhi, INDIA
Than Singh Saini, Ajeet Kumar and Ravindra Kumar Sinha, “FEM analysis of single-mode microstructured polymer optical fiber” Proceeding of SPIE-Winter School on Photonics, 26th – 29th Dec. 2013, Indian Institute of Science Education and Research (IISER), Kolkata, India (2013)
Vinita Dahiya, Gurpreet Kaur, Anirban Mitra and Ajeet Kumar, “Investigation of variation of energy of laser beam on structural, electrical and optical properties of pulsed laser deposited CuO thin films,” in 58th DAE - Solid State Physics Symposium, Thapar University, Patiala, Punjab, India, Dec.17-21, 2013 (AIP Conf. Proc. 1591, 941 (2014).
Vinita, Ajeet Kumar and Vipul Rastogi, "Bandgap maps for Photonic Crystal with Honeycomb lattice for different shapes of scatterers," in XXIth International Workshop on Optical Wave & Waveguide Theory and Numerical Modelling, OWTNM 2013, University of Twente, Netherland.
Gautam Prabhakar, Akshit Peer, Ajeet Kumar and Vipul Rastogi, “Modal analysis of micristrctured optical fibers using finite element method,” in National Conference on Advances in Physics-NCAP 2012, Feb 25-26, 2012, pp. 88-89, IIT Roorkee, India.
A. Kumar and V. Rastogi, “Leaky channel waveguide for large-mode-area extended single-mode operation,” in National Conference on Advances in Physics-NCAP 2012, Feb 25-26, 2012, pp. 90-91, IIT Roorkee, India.
Babita, V. Rastogi and A. Kumar, “Dual shape large mode area optical fiber for femtosecond laser pulse delivery,” in National Conference on Advances in Physics-NCAP 2012, Feb 25-26, 2012, pp. 94-95, IIT Roorkee, India.
Ajeet Kumar, Vipul Rastogi, Youngjoo Chung, and Won-Taek Han, “Dual shape large core single-mode fiber for high power applications,” in 9th international conference on optical internet-COIN-2010, July 11-14, Jeju, South Korea.
Vipul Rastogi and Ajeet Kumar, “Dual shape large-mode area fiber for high power application,” in 10th International Conference on Fiber Optics & Photonics- Photonics 2010, Guahati-India.
Vipul Rastogi, Prince Gupta, N. Ashok and Ajeet Kumar, “Waveguide polarizer based on dual-core leaky structure,” in 10th International Conference on Fiber Optics & Photonics- Photonics 2010, Guahati-India.
Vipul Rastogi, Anil Boyal and Ajeet Kumar, “Ultra wide rejection band using long-period waveguide grating,” in 10th International Conference on Fiber Optics & Photonics- Photonics 2010, Guahati-India.
P. Singh, A. Kumar, V. Rastogi, A. Agrawal, and B. M. A. Rahman, “FEM analysis of an ellipltical-core segmented cladding fibre,” in international conference on optics and photonics-ICOP-2009, Oct 30 –Nov. 1, 2009, Chandigarh, India.
B. Rautela, A. Kumar and V. Rastogi, “Dispersion study of leaky resonant planar waveguide,” in international conference on optics and photonics-ICOP-2009, Oct 30 –Nov. 1, 2009, Chandigarh, India.
P. Singh, V. Rastogi and A. Kumar, “Gain flattening of erbium doped fibre amplifier using a leaky optical fibre filter,” in international conference on optics and photonics-ICOP-2009, Oct 30 –Nov. 1, 2009, Chandigarh, India.
V. Rastogi, K. Kamakshi, R. K. Patra, A. Kumar and J. Rai, “Design and fabrication of single mode fibre optic refractive index sensor,” in international conference on optics and photonics-ICOP-2009, Oct 30 –Nov. 1, 2009, Chandigarh, India.
V Rastogi and A Kumar, “Design and analysis of dual-core dispersion compensating leaky fibre,” 12th Int. Symposium on Microwave and Optical Technology – ISMOT 2009 (New Delhi, Dec. 16 – 19) (Macmillan Publishers India Ltd.) ed E K Sharma, A K Verma, R S Gupta, M Gupta, M Saxena, and S Singh, pp 629-32, 2009.
B. Dussardier, S. Trzesien, M. Ude, V. Rastogi, A. Kumar, and G. Monnom, “Fibre optique a large aire de mode a gaine multi-couches realisee par MCVD”, JNOG-2008, France.
S. Trzesien, M. Ude, V. Rastogi, A. Kumar , B. Dussardier, and G. Monnom, “Multi-layer cladding large-mode-area silica optical fiber fabricated by MCVD,” Photonics Prague conference-2008.
Ajeet Kumar, Vipul Rastogi, Arti Agrawal, and B. M. A. Rahman, “FEM analysis of a birefringent segmented cladding fibre,” in international conference on fiber and photonics- Photonics 2008, p. 216, Delhi, 2008.
L. Labonte, V. Rastogi, A. Kumar, B. Dussardier, and G. Monnom, “Full Vectorial analysis of a leaky optical fiber”, in international conference on fiber and photonics- Photonics 2008, p. 217, Delhi, 2008.
Ajeet Kumar and Vipul Rastogi, “Dual core leaky fibre for high power lasers and amplifiers,” 3rd Uttarakhand State Science and Technology Congress-2008, p-253, November 10-11, 2008.
Ajeet Kumar and Vipul Rastogi, “Multi-layer leaky planar waveguide for high power applications”, Indo-Japan Workshop on Recent Developments in Optics and Photonics, Delhi, paper P-02, p 96-97, December 13-14 Dec 2007.
Ajeet Kumar, Arti Agrawal, B. M. A. Rahman, Vipul Rastogi, N. Kejalakshmy and K. T. V. Gratten, “Segmented cladding fibre for high power application in infra-red region”, Indo-Japan Workshop on Recent Developments in Optics and Photonics, Delhi, paper P-01, p 93-95, December 13-14 Dec 2007.
Vipul Rastogi, Ajeet Kumar, and Kin Seng Chiang, “Leaky channel waveguide for high power applications” in eighth international conference on optoelectronics, fiber optics and photonics- Photonics 2006, paper IOD 25, p. 142, Hyderabad, 2006.
Ajeet Kumar, Vipul Rastogi, and Kin Seng Chiang, “2-Dimensional optical waveguide for large-mode-area single-mode operation” in Indo-UK workshop on recent advances in fiber optics and photonics-RAFOP 2006, p. 121, Roorkee, 2006. Vipul Rastogi and Ajeet Kumar, “A comprehensive study of large-mode-area single-mode waveguide,” in International Conference on Optics and Optoelectronics – ICOL 2005, paper OP-FIO-9, p. 64, Dec. 12-15, 2005, Dehradun, India.
Vipul Rastogi and Ajeet Kumar, “A comprehensive study of large-mode-area single-mode waveguide,” in International Conference on Optics and Optoelectronics – ICOL 2005, paper OP-FIO-9, p. 64, Dec. 12-15, 2005, Dehradun, India.