標題: Generation of THz radiation from resonant absorption in strained multiple quantum wells in a magnetic field
作者: Liu, TA
Huang, KF
Pan, CL
Ono, S
Ohtake, H
Sarukura, N
電子物理學系
光電工程學系
Department of Electrophysics
Department of Photonics
關鍵字: THz-radiation;strained;multiple quantum wells;magnetic field;resonant absorption
公開日期: 1-Jul-2001
摘要: Optically excited THz-radiation from ten molecular-beam epitaxy (MBE)-grown strained multiple quantum wells (MQWs) on a (100)-oriented semi-insulating GaAs substrate is studied in a 1-T magnetic field. Wavelength-dependent THz-radiation clearly exhibits a resonance behavior at the excitation wavelength near 830 nm, the peak wavelength of photoluminescence (PL). We also observe and explain an emission spectrum from the MQW with slightly enhanced higher-frequency components compared to that of bulk GaAs. In the thin MQW sample, the THz emission is still significant. This indicates the possibility of designing MQWs as efficient THz emitters in the future.
URI: http://dx.doi.org/10.1143/JJAP.40.L681
http://hdl.handle.net/11536/29544
ISSN: 0021-4922
DOI: 10.1143/JJAP.40.L681
期刊: JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS
Volume: 40
Issue: 7A
起始頁: L681
結束頁: L683
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