Electromagnetically induced transparency and lasing without population inversion in semiconductor quantum wells
- Resource Type
- Conference
- Authors
- Yang Zhao; Danhong Huang; Cunkai Wu
- Source
- Proceedings of LEOS'94 LEOS '94 Lasers and Electro-Optics Society Annual Meeting, 1994. LEOS '94 Conference Proceedings. IEEE. 1:173-174 vol.1 1994
- Subject
- Photonics and Electrooptics
Components, Circuits, Devices and Systems
Probes
Electron optics
Optical pumping
Optical coupling
Laser excitation
Laser theory
Laser transitions
Pump lasers
Quantum well lasers
Electron beams
- Language
Summary form only given. In this paper, we present coherent optical effects in a quantum well system with two electron subbands coupled by a pump laser. The Coulomb and light induced electronic renormalization is investigated with generalized density-functional theory. On the basis of the renormalized electron states, the absorption coefficient of a probe light beam is studied for intersubband transition by using a self-consistent field theory. Both the electromagnetically induced transparency (EMIT) and probe light amplification without population inversion are found.