Optical tuning by angular constraint of the electron gas in a cylindrical quantum well
作者:
Danhong Huang,
Godfrey Gumbs,
期刊:
Journal of Applied Physics
(AIP Available online 1993)
卷期:
Volume 73,
issue 12
页码: 8397-8401
ISSN:0021-8979
年代: 1993
DOI:10.1063/1.353408
出版商: AIP
数据来源: AIP
摘要:
The dielectric response of an electron gas in a cylindrical quantum well is calculated when the electron motion in the angular direction is restricted. The dielectric response is shown to depend in a nontrivial way on the angle of restriction &bgr; thereby making it possible to tune the optical response to external electromagnetic radiation. The resonant absorption wavelength can be adjusted by changing &bgr; over a wide range which might be used in optoelectronic detectors.
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