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Proceedings Paper

Time-resolved far infrared magnetospectroscopy of ultra-high mobility n-GaAs layersand GaAs/alGaAs multi quantum wells
Author(s): J. M. Chamberlain
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Paper Abstract

The time-resolved (TR) FIR photoconductivity of exceptionally high mobility n-GaAs (µ =250,000 cm2V-1s-1) samples hasbeen measured at 1.8K and in magnetic fields up to 8T using short (5ns) FIR pulses. The photoconductive decay time- constant (r) is determined at zero magnetic field and at several non-zero fields with FIR laser energies resonant with the 1s- 2p+ impurity transition. Comparisons are made with previous measurements on MQWs and a simple Golden Rule theory.

Paper Details

Date Published: 30 November 2017
PDF: 2 pages
Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 210491 (30 November 2017); doi: 10.1117/12.2298757
Show Author Affiliations
J. M. Chamberlain, Nottingham Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 2104:
18th International Conference on Infrared and Millimeter Waves
James R. Birch; Terence J. Parker, Editor(s)

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