☰

Sushil Kumar - Publications

Affiliations: 
Lehigh University, Bethlehem, PA, United States 
Tree Info Similar researchers PubMed Report error

45 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2021 Chen J, Jin Y, Gao L, Reno JL, Kumar S. Wavelength beam-combining of terahertz quantum-cascade laser arrays. Optics Letters. 46: 1864-1867. PMID 33857089 DOI: 10.1364/OL.420398  0.3
2020 Jin Y, Zhu Q, Reno JL, Kumar S. High power edge-cum-surface emitting terahertz laser arrays phased locked by vacuum guided plasmon waves Applied Physics Letters. 116: 131103-131103. DOI: 10.1063/1.5142860  0.482
2019 Chen J, Gao L, Jin Y, Reno JL, Kumar S. High-intensity and low-divergence THz laser with 1D autofocusing symmetric Airy beams. Optics Express. 27: 22877-22889. PMID 31510572 DOI: 10.1364/Oe.27.022877  0.355
2019 Gao L, Zhao L, Reno JL, Kumar S. Electrical tuning of a terahertz quantum cascade laser based on detuned intersubband absorption Applied Physics Letters. 115: 141102. DOI: 10.1063/1.5118770  0.5
2018 Jin Y, Gao L, Chen J, Wu C, Reno JL, Kumar S. Publisher Correction: High power surface emitting terahertz laser with hybrid second- and fourth-order Bragg gratings. Nature Communications. 9: 1964. PMID 29760454 DOI: 10.1038/S41467-018-04400-8  0.306
2018 Jin Y, Gao L, Chen J, Wu C, Reno JL, Kumar S. High power surface emitting terahertz laser with hybrid second- and fourth-order Bragg gratings. Nature Communications. 9: 1407. PMID 29643341 DOI: 10.1038/S41467-018-03697-9  0.488
2017 Jin Y, Wu C, Reno JL, Kumar S. Terahertz plasmonic lasers with narrow beams and large tunability Proceedings of Spie. 10123: 1012312. DOI: 10.1117/12.2253676  0.494
2016 Khanal S, Gao L, Zhao L, Reno JL, Kumar S. High-temperature operation of broadband bidirectional terahertz quantum-cascade lasers. Scientific Reports. 6: 32978. PMID 27615416 DOI: 10.1038/Srep32978  0.491
2016 Wu C, Khanal S, Reno JL, Kumar S. Terahertz plasmonic laser radiating in an ultra-narrow beam Optica. 3: 734. DOI: 10.1364/Optica.3.000734  0.473
2015 Khanal S, Reno JL, Kumar S. 2.1 THz quantum-cascade laser operating up to 144 K based on a scattering-assisted injection design. Optics Express. 23: 19689-97. PMID 26367626 DOI: 10.1364/Oe.23.019689  0.51
2015 Zhao L, Khanal S, Wu C, Kumar S. Proposal for a broadband THz refractive-index sensor based on quantum-cascade laser arrays. Optics Express. 23: 4751-65. PMID 25836511 DOI: 10.1364/Oe.23.004751  0.379
2014 Khanal S, Zhao L, Reno JL, Kumar S. Temperature performance of terahertz quantum-cascade lasers with resonant-phonon active-regions Journal of Optics. 16: 094001. DOI: 10.1088/2040-8978/16/9/094001  0.489
2013 Zhao L, Kumar S. Design of a hole-based THz intersubband laser Frontiers in Optics. DOI: 10.1364/Ls.2013.Lw5G.3  0.405
2012 Kumar S. Operation of terahertz quantum cascade lasers above 160 K covering a frequency range of 2-4 THz Proceedings of Spie - the International Society For Optical Engineering. 8496. DOI: 10.1117/12.929760  0.464
2012 Kumar S, Hu Q. Investigation of possible microcavity effect on lasing threshold of nonradiative-scattering-dominated semiconductor lasers Applied Physics Letters. 100: 041105. DOI: 10.1063/1.3678595  0.589
2011 Kumar S, Qin Q, Chan CWI, Hu Q, Reno JL. High-temperature performance and broad continuous tunability of terahertz quantum-cascade lasers Proceedings of Spie. 7953. DOI: 10.1117/12.875686  0.634
2011 Botez D, Shin JC, Kumar S, Kirch J, Chang CC, Mawst LJ, Vurgaftman I, Meyer JR, Bismuto A, Hinkov B, Faist J. The temperature dependence of key electro-optical characteristics for mid-infrared emitting quantum cascade lasers Proceedings of Spie - the International Society For Optical Engineering. 7953. DOI: 10.1117/12.874197  0.458
2011 Kumar S. Recent Progress in Terahertz Quantum Cascade Lasers Ieee Journal of Selected Topics in Quantum Electronics. 17: 38-47. DOI: 10.1109/Jstqe.2010.2049735  0.509
2010 Lee AW, Williams BS, Kumar S, Hu Q, Reno JL. Tunable terahertz quantum cascade lasers with external gratings. Optics Letters. 35: 910-2. PMID 20364166 DOI: 10.1364/Ol.35.000910  0.676
2010 Botez D, Shin JC, Kumar S, Mawst LJ, Vurgaftman I, Meyer JR. Electron leakage and its suppression via deep-well structures in 4.5- to 5.0-μm-emitting quantum cascade lasers Optical Engineering. 49. DOI: 10.1117/1.3509368  0.447
2010 Gambari J, Fernandez-Dominguez AI, Maier SA, Williams BS, Kumar S, Reno JL, Hu Q, Phillips CC. Thresholdless coherent light scattering from subband polaritons in a strongly coupled microcavity Physical Review B. 82. DOI: 10.1103/Physrevb.82.121303  0.506
2010 Botez D, Kumar S, Shin JC, Mawst LJ, Vurgaftman I, Meyer JR. Erratum: “Temperature dependence of the key electro-optical characteristics for midinfrared emitting quantum cascade lasers” [Appl. Phys. Lett. 97, 071101 (2010)] Applied Physics Letters. 97: 199901. DOI: 10.1063/1.3512956  0.376
2010 Botez D, Kumar S, Shin JC, Mawst LJ, Vurgaftman I, Meyer JR. Temperature dependence of the key electro-optical characteristics for midinfrared emitting quantum cascade lasers Applied Physics Letters. 97. DOI: 10.1063/1.3478836  0.497
2010 Kumar S, Chan CWI, Hu Q, Reno JL. A 1.8-THz quantum cascade laser operating significantly above the temperature of ℏω/kB Nature Physics. 7: 166-171. DOI: 10.1038/Nphys1846  0.588
2009 Kumar S, Hu Q. Coherence of resonant-tunneling transport in terahertz quantum-cascade lasers Physical Review B. 80. DOI: 10.1103/Physrevb.80.245316  0.56
2009 Kumar S, Hu Q, Reno JL. 186 K operation of terahertz quantum-cascade lasers based on a diagonal design Applied Physics Letters. 94: 131105. DOI: 10.1063/1.3114418  0.602
2008 Kumar S, Lee AWM. Resonant-Phonon Terahertz Quantum-Cascade Lasers and Video-Rate Terahertz Imaging Ieee Journal of Selected Topics in Quantum Electronics. 14: 333-344. DOI: 10.1109/Jstqe.2007.915510  0.498
2008 Scamarcio G, Vitiello MS, Spagnolo V, Kumar S, Williams B, Hu Q. Nanoscale heat transfer in quantum cascade lasers Physica E: Low-Dimensional Systems and Nanostructures. 40: 1780-1784. DOI: 10.1016/J.Physe.2007.09.168  0.654
2007 Kumar S, Williams BS, Qin Q, Lee AW, Hu Q, Reno JL. Surface-emitting distributed feedback terahertz quantum-cascade lasers in metal-metal waveguides. Optics Express. 15: 113-28. PMID 19532227 DOI: 10.1364/Oe.15.000113  0.681
2007 Wei Min Lee A, Qin Q, Kumar S, Williams BS, Hu Q, Reno JL. High-power and high-temperature THz quantum-cascade lasers based on lens-coupled metal-metal waveguides. Optics Letters. 32: 2840-2. PMID 17909591 DOI: 10.1364/Ol.32.002840  0.659
2007 Spagnolo V, Vitiello MS, Scamarcio G, Williams BS, Kumar S, Hu Q, Reno JL. Hot-phonon generation in THz quantum cascade lasers Journal of Physics: Conference Series. 92: 012018. DOI: 10.1088/1742-6596/92/1/012018  0.65
2006 Lee AWM, Williams BS, Kumar S, Hu Q, Reno JL. Real-time imaging using a 4.3-THz quantum cascade laser and a 320 /spl times/ 240 microbolometer focal-plane array Ieee Photonics Technology Letters. 18: 1415-1417. DOI: 10.1109/Lpt.2006.877220  0.526
2006 Adam AJL, Kašalynas I, Hovenier JN, Klaassen TO, Gao JR, Orlova EE, Williams BS, Kumar S, Hu Q, Reno JL. Beam patterns of terahertz quantum cascade lasers with subwavelength cavity dimensions Applied Physics Letters. 88: 151105. DOI: 10.1063/1.2194889  0.614
2006 Williams B, Kumar S, Hu Q, Reno J. High-power terahertz quantum-cascade lasers Electronics Letters. 42: 89. DOI: 10.1049/El:20063921  0.625
2005 Williams B, Kumar S, Hu Q, Reno J. Operation of terahertz quantum-cascade lasers at 164 K in pulsed mode and at 117 K in continuous-wave mode. Optics Express. 13: 3331-9. PMID 19495235 DOI: 10.1364/Opex.13.003331  0.673
2005 Williams BS, Kumar S, Hu Q, Reno JL. Distributed-feedback terahertz quantum-cascade lasers with laterally corrugated metal waveguides. Optics Letters. 30: 2909-11. PMID 16279466 DOI: 10.1364/Ol.30.002909  0.664
2005 Hu Q, Williams BS, Kumar S, Callebaut H, Kohen S, Reno JL. Resonant-phonon-assisted THz quantum-cascade lasers with metal–metal waveguides Semiconductor Science and Technology. 20: S228-S236. DOI: 10.1088/0268-1242/20/7/013  0.688
2005 Gao JR, Hovenier JN, Yang ZQ, Baselmans JJA, Baryshev A, Hajenius M, Klapwijk TM, Adam AJL, Klaassen TO, Williams BS, Kumar S, Hu Q, Reno JL. Terahertz heterodyne receiver based on a quantum cascade laser and a superconducting bolometer Applied Physics Letters. 86: 244104. DOI: 10.1063/1.1949724  0.6
2005 Vitiello MS, Scamarcio G, Spagnolo V, Williams BS, Kumar S, Hu Q, Reno JL. Measurement of subband electronic temperatures and population inversion in THz quantum-cascade lasers Applied Physics Letters. 86: 111115. DOI: 10.1063/1.1886266  0.548
2004 Hu Q, Williams BS, Kumar S, Callebaut H, Reno JL. Terahertz quantum cascade lasers based on resonant phonon scattering for depopulation. Philosophical Transactions. Series a, Mathematical, Physical, and Engineering Sciences. 362: 233-47; discussion 2. PMID 15306517 DOI: 10.1098/Rsta.2003.1314  0.69
2004 Kumar S, Williams BS, Kohen S, Hu Q, Reno JL. Continuous-wave operation of terahertz quantum-cascade lasers above liquid-nitrogen temperature Applied Physics Letters. 84: 2494-2496. DOI: 10.1063/1.1695099  0.609
2004 Callebaut H, Kumar S, Williams BS, Hu Q, Reno JL. Importance of electron-impurity scattering for electron transport in terahertz quantum-cascade lasers Applied Physics Letters. 84: 645-647. DOI: 10.1063/1.1644337  0.499
2003 Williams BS, Kumar S, Callebaut H, Hu Q, Reno JL. Terahertz quantum-cascade laser operating up to 137 K Applied Physics Letters. 83: 5142-5144. DOI: 10.1063/1.1635657  0.604
2003 Williams BS, Kumar S, Callebaut H, Hu Q, Reno JL. Terahertz quantum-cascade laser at λ≈100 μm using metal waveguide for mode confinement Applied Physics Letters. 83: 2124-2126. DOI: 10.1063/1.1611642  0.603
2003 Williams BS, Callebaut H, Kumar S, Hu Q, Reno JL. 3.4-THz quantum cascade laser based on longitudinal-optical-phonon scattering for depopulation Applied Physics Letters. 82: 1015-1017. DOI: 10.1063/1.1554479  0.649
Show low-probability matches.