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
599 2003 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
573 2005 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
466 2003 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
464 2009 High-power terahertz quantum-cascade lasers BS Williams, S Kumar, Q Hu, JL Reno
Electronics letters 42 (2), 89-91, 2006
450 2006 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
387 2006 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
372 2006 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
285 2004 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
276 2005 Recent progress in terahertz quantum cascade lasers S Kumar
IEEE Journal of Selected Topics in Quantum Electronics 17 (1), 38-47, 2010
255 2010 Recent progress in terahertz quantum cascade lasers S Kumar
IEEE Journal of Selected Topics in Quantum Electronics 17 (1), 38-47, 2010
255 2010 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
254 2011 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
249 2007 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
217 2009 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
213 2003 Coherence of resonant-tunneling transport in terahertz quantum-cascade lasers S Kumar, Q Hu
Physical Review B 80 (24), 245316, 2009
202 2009 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
183 2007 S Kumar, BS Williams, Q Hu, JL Reno
Applied Physics Letters 88 (12), 121123, 2006
168 2006 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
167 2006 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
156 2005 
John L RenoSandia National Laboratories, University of Illinois at Chicago, Center for IntegratedOverená e-mailová adresa na: sandia.gov
