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GaAs/Al xGa 1-xAs quantum cascade lasers
(1999)Summaries of papers presented at the Quantum Electronics and Laser Science Conference : Baltimore Convention Center, Baltimore, Maryland, May 23-28, 1999Other Conference Item -
GaAs/Al xGa 1-xAs quantum cascade lasers
(1999)Summeries of papers presented at the Conference on Lasers and Electro-Optics : Baltimore Convention Center, Baltimore, Maryland, May 23-28, 1999Other Conference Item -
Electromagnetically induced transparency in a three-subband semiconductor quantum well
(1999)Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, 1999. QELS '99. Technical DigestOther Conference Item -
Resonant tunneling electron injection in quantum cascade laser structures
(1998)OSA Technical Digest ~ Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics (CLEO '98)Summary form only given. It has been shown that by judicious control of energy levels and wave functions one cannot only tailor the wavelength over a wide spectral range but also design the scattering rates and dipole matrix elements to improve the gain, thus lowering the threshold currents. In this paper, we present a complementary investigation that addresses the injector design and, more specifically, the phenomena controlling the ...Other Conference Item -
Quantum cascade lasers based on guided modes at a metal-semiconductor interface
(1998)OSA Technical Digest ~ Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics (CLEO '98)Summary form only given. Planar waveguides for long-wavelength quantum cascade (QC) lasers require thick cladding layers. This prolongs and complicates the growth and processing procedures of these lasers. In this paper we demonstrate that optical waveguiding for a laser in this wavelength range can also be achieved using electromagnetic surface waves at a metal-semiconductor interface directly above the active region of the laser. No ...Other Conference Item -
Unipolar quantum cascade intersubband infrared lasers and LEDs
(1995)Technical Digest Serie / Optical Societe of America ~ QELS '95: Summaries of Papers Presented at the Quantum Electronics and Laser Science ConferenceOther Conference Item -
Mid-infrared quantum cascade lasers
(1994)LEOS ’94: Conference Proceedings: IEEE Lasers and Electro-Optics Society 1994 7th Annual MeetingOther Conference Item -
Far-infrared radiation (lambda=60 mum) by difference frequency generation in coupled quantum wells
(1994)OSA Technical Digest ~ IQEC '94. Summaries of papers presented at the International Quantum Electronics ConferenceOther Conference Item