Electromagnetically induced transparency and lasing without population inversion in semiconductor quantum wells
- Resource Type
- Authors
- Yang Zhao; Cunkai Wu; Danhong Huang
- Source
- Proceedings of LEOS'94.
- Subject
- Physics
Quantum optics
Condensed matter physics
Electromagnetically induced transparency
Electromagnetically induced grating
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
Population inversion
Laser
law.invention
Quantum dot laser
law
Light beam
Atomic physics
Quantum well
- 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.