Sushil Kumar
Sushil Kumar
Associate Professor, Department of Electrical and Computer Engineering, Lehigh University
E-mail confirmado em lehigh.edu
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3.4-THz quantum cascade laser based on longitudinal-optical-phonon scattering for depopulation
BS Williams, H Callebaut, S Kumar, Q Hu, JL Reno
Applied Physics Letters 82 (7), 1015-1017, 2003
5502003
Operation of terahertz quantum-cascade lasers at 164 K in pulsed mode and at 117 K in continuous-wave mode
B Williams, S Kumar, Q Hu, J Reno
Optics Express 13 (9), 3331-3339, 2005
5052005
High-power terahertz quantum-cascade lasers
BS Williams, S Kumar, Q Hu, JL Reno
Electronics letters 42 (2), 89-91, 2006
4022006
186 K operation of terahertz quantum-cascade lasers based on a diagonal design
S Kumar, Q Hu, JL Reno
Applied Physics Letters 94 (13), 131105, 2009
4012009
Terahertz quantum-cascade laser at λ≈ 100 μm using metal waveguide for mode confinement
BS Williams, S Kumar, H Callebaut, Q Hu, JL Reno
Applied Physics Letters 83 (11), 2124-2126, 2003
3872003
Real-time imaging using a 4.3-THz quantum cascade laser and a 320/spl times/240 microbolometer focal-plane array
AWM Lee, BS Williams, S Kumar, Q Hu, JL Reno
IEEE Photonics Technology Letters 18 (13), 1415-1417, 2006
3322006
Real-time terahertz imaging over a standoff distance
AWM Lee, Q Qin, S Kumar, BS Williams, Q Hu, JL Reno
Applied Physics Letters 89 (14), 141125, 2006
3312006
Continuous-wave operation of terahertz quantum-cascade lasers above liquid-nitrogen temperature
S Kumar, BS Williams, S Kohen, Q Hu, JL Reno
Applied physics letters 84 (14), 2494-2496, 2004
2572004
Terahertz heterodyne receiver based on a quantum cascade laser and a superconducting bolometer
JR Gao, JN Hovenier, ZQ Yang, JJA Baselmans, A Baryshev, M Hajenius, ...
Applied Physics Letters 86 (24), 244104, 2005
2412005
Surface-emitting distributed feedback terahertz quantum-cascade lasers in metal-metal waveguides
S Kumar, BS Williams, Q Qin, AW Lee, Q Hu, JL Reno
Optics express 15 (1), 113-128, 2007
2202007
Recent progress in terahertz quantum cascade lasers
S Kumar
IEEE Journal of Selected Topics in Quantum Electronics 17 (1), 38-47, 2010
2152010
Recent progress in terahertz quantum cascade lasers
S Kumar
IEEE Journal of Selected Topics in Quantum Electronics 17 (1), 38-47, 2010
2152010
A 1.8-THz quantum cascade laser operating significantly above the temperature of ℏ ω/k B
S Kumar, CWI Chan, Q Hu, JL Reno
Nature Physics 7 (2), 166-171, 2011
2142011
Terahertz quantum-cascade laser operating up to 137 K
BS Williams, S Kumar, H Callebaut, Q Hu, JL Reno
Applied physics letters 83 (25), 5142-5144, 2003
2082003
Magnetic-field-assisted terahertz quantum cascade laser operating up to 225 K
A Wade, G Fedorov, D Smirnov, S Kumar, BS Williams, Q Hu, JL Reno
Nature Photonics 3 (1), 41-45, 2009
1832009
High-power and high-temperature THz quantum-cascade lasers based on lens-coupled metal-metal waveguides
AWM Lee, Q Qin, S Kumar, BS Williams, Q Hu, JL Reno
Optics letters 32 (19), 2840-2842, 2007
1652007
Beam patterns of terahertz quantum cascade lasers with subwavelength cavity dimensions
AJL Adam, I Kašalynas, JN Hovenier, TO Klaassen, JR Gao, EE Orlova, ...
Applied physics letters 88 (15), 151105, 2006
1512006
quantum-cascade lasers with one-well injector
S Kumar, BS Williams, Q Hu, JL Reno
Applied Physics Letters 88 (12), 121123, 2006
1492006
Importance of electron-impurity scattering for electron transport in terahertz quantum-cascade lasers
H Callebaut, S Kumar, BS Williams, Q Hu, JL Reno
Applied Physics Letters 84 (5), 645-647, 2004
1472004
Measurement of subband electronic temperatures and population inversion in THz quantum-cascade lasers
MS Vitiello, G Scamarcio, V Spagnolo, BS Williams, S Kumar, Q Hu, ...
Applied Physics Letters 86 (11), 111115, 2005
1422005
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