Absorption and emission of terahertz radiation in doped GaAs/AlGaAs quantum wells

D. A. Firsov; L. E. Vorobjev; V. A. Shalygin; V. Yu. Panevin; A. N. Sofronov; Sergey Ganichev; S. N. Danilov; A. V. Andrianov; A. O. Zakhar’in; A. E. Zhukov; V. S. Mikhrin; А. П. Васильев

doi:10.3103/s1062873808020287

JOURNAL ARTICLE

Absorption and emission of terahertz radiation in doped GaAs/AlGaAs quantum wells

D. A. Firsov L. E. Vorobjev V. A. Shalygin V. Yu. Panevin A. N. Sofronov Sergey Ganichev S. N. Danilov A. V. Andrianov A. O. Zakhar’in A. E. Zhukov V. S. Mikhrin А. П. Васильев

Year: 2008 Journal: Bulletin of the Russian Academy of Sciences Physics Vol: 72 (2)Pages: 246-248 Publisher: Pleiades Publishing

DOI: 10.3103/s1062873808020287

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Abstract

Spontaneous emission of terahertz radiation from structures with GaAs/AlGaAs quantum wells in a longitudinal magnetic field has been studied. It is shown that some bands in the emission spectrum can be related to radiative electron transitions between resonant and localized impurity states, as well as to the transitions with participation of subband states. The temperature dependence of the equilibrium intraband absorption of terahertz radiation and its modulation in a longitudinal electric field in GaAs/AlGaAs quantum wells has been investigated.

Keywords:

Terahertz radiation Quantum well Electric field Absorption (acoustics) Condensed matter physics Electron Radiation Materials science Optoelectronics Doping Atomic physics Physics Optics

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Semiconductor Quantum Structures and Devices

Physical Sciences → Physics and Astronomy → Atomic and Molecular Physics, and Optics

Terahertz technology and applications

Physical Sciences → Engineering → Electrical and Electronic Engineering

Strong Light-Matter Interactions

Physical Sciences → Physics and Astronomy → Atomic and Molecular Physics, and Optics

Absorption and emission of terahertz radiation in doped GaAs/AlGaAs quantum wells

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