Direct laser writing of volumetric gradient index lenses and waveguides CR Ocier, CA Richards, DA Bacon-Brown, Q Ding, R Kumar, TJ Garcia, ... Light: Science & Applications 9 (1), 196, 2020 | 102 | 2020 |
Realization of high-quality InGaAs/GaAs quantum dot growth on Ge substrate and improvement of optical property through ex-situ ion implantation R Kumar, D Panda, D Das, A Chatterjee, B Tongbram, J Saha, ... Journal of Luminescence 223, 117208, 2020 | 4 | 2020 |
Seasonal variability of rip current probability along a wave-dominated coast using high resolution satellites and wave data T Sridevi, VV Surisetty, A Kumar, R Kumar Journal of Geomatics 13 (1), 149-155, 2019 | 3 | 2019 |
Biofortification to combat Vitamin A deficiency sustainably through pro-moting orange-fleshed sweet potato (Ipomoea batatas) in eastern Uttar Pradesh RC Chaudhary, A Gandhe, RK Sharma, R Kumar The Society of Agricultural Professionals 8 (2), 139-142, 2016 | 3 | 2016 |
Orbital angular momentum modes from VCSELs using grayscale photolithography R Kumar, P Strzebonski, K Lakomy, KD Choquette IEEE Photonics Technology Letters 33 (16), 824-827, 2021 | 2 | 2021 |
Monolithic growth of GaAs/Al0. 3Ga0. 7As Multiple Quantum Well structure on Ge substrate with low defects: Theoretical and Experimental Correlation of the structural and … R Kumar, D Panda, J Saha, B Tongbram, D Das, R Kumar, S Chakrabarti Journal of Physics D: Applied Physics 53 (43), 435301, 2020 | 1 | 2020 |
Lead-Free Hybrid Perovskite Light-Harvesting Material for QD-LED Application RK Singh, N Jain, S Som, S Dutta, J Singh, R Kumar Perovskite Materials, Devices and Integration, 117, 2020 | 1 | 2020 |
MBE-grown InGaAs/GaAs quantum-dots on Ge substrate: An idea towards optoelectronic integration on silicon R Kumar, R Kumar, D Panda, J Saha, B Tongbram, D Das, S Upadhyay, ... Quantum Dots and Nanostructures: Growth, Characterization, and Modeling XVI …, 2019 | 1 | 2019 |
Enhanced optical and structural properties of MBE-grown AlGaN nanowires on Si substrate by H-ion implantation and UV ozone treatment R Kumar, R Kumar, D Panda, M Biswas, S Upadhyay, D Das, S Zhao, ... Gallium Nitride Materials and Devices XIV 10918, 109180A, 2019 | 1 | 2019 |
Optical losses in InGaAsP/InP QW intermixed waveguides for ZrO2 cap with and without F implantation S Das, R Kumar, T Bhowmick, U Das Optical and Quantum Electronics 48, 1-7, 2016 | 1 | 2016 |
Induced star-triangle factors of graphs SPS Kainth, R Kumar, S Pirzada Acta Universitatis Sapientiae, Mathematica 13 (1), 209-216, 0 | 1 | |
Ultra-sensitive current bistability and light switching in a resonant tunneling superlattice transistor R Kumar, RB Kaufman, FC Hsiao, JP Leburton, JM Dallesasse Journal of Applied Physics 135 (16), 2024 | | 2024 |
Quantum photonic integration of silicon topological metasurfaces with NV centers in diamond R Kumar, C Magadi, G López-Morales, A Vakulenko, S Kiriushechkina, ... Bulletin of the American Physical Society, 2024 | | 2024 |
Ferromagnetism and magnetic edge effects in Fe-implanted WS2 layers A Laraoui, T Gas-osoth, Y Wang, R Kumar, T Delord, A Erickson, T Li, ... Bulletin of the American Physical Society, 2024 | | 2024 |
Integrated 3D microlenses for efficient light extraction from diamond quantum emitters using two-photon polymerization R Kumar, A Lozovoi, R Monge, C Meriles Bulletin of the American Physical Society, 2024 | | 2024 |
(Invited) Transistor-Injected Quantum-Cascade Devices: Novel Sources for Mid-Wave Infrared Emission JM Dallesasse, R Kumar, R Kaufman Electrochemical Society Meeting Abstracts 244, 1571-1571, 2023 | | 2023 |
Light emission and current instabilities in transistor-injected quantum cascade structures R Kumar University of Illinois at Urbana-Champaign, 2023 | | 2023 |
Integrated Dielectric Micro-Optical Elements on VCSELs Using Grayscale Photolithography R Kumar, K Lakomy, W North, P Strzebonski, KD Choquette 2021 Conference on Lasers and Electro-Optics (CLEO), 1-2, 2021 | | 2021 |
Beam-Steering in 2D via Non-Linear Mapping of 1D Beam-Steering P Strzebonski, R Kumar, K Choquette 2020 IEEE Photonics Conference (IPC), 1-2, 2020 | | 2020 |
Orbital Angular Momentum Modes from Coherently Coupled VCSEL Arrays R Kumar, P Strzebonski, KD Choquette 2020 IEEE Photonics Conference (IPC), 1-2, 2020 | | 2020 |