Occupation Modulation of Higher Subbands in a Three-Barrier Tunneling Structure with a Magnetic Field
AN Long, TANG Yan, ZHENG Hou-Zhi, ZHANG Ji-Dong, TAN Ping-Heng, YANG Fu-Hua, JI Yang, CHEN Yuan-Zhen
National Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083
Occupation Modulation of Higher Subbands in a Three-Barrier Tunneling Structure with a Magnetic Field
AN Long;TANG Yan;ZHENG Hou-Zhi;ZHANG Ji-Dong;TAN Ping-Heng;YANG Fu-Hua;JI Yang;CHEN Yuan-Zhen
National Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083
关键词 ：
73.40.Gk ,
78.66.Fd ,
41.20.-q
Abstract ： We verify that the magnetic suppression of intersubband LO or LA phonon scattering can give rise to a noticeable nonthermal occupation in higher-lying subbands. This is clearly determined by the relative intensity ratio of the interband photoluminescence spectra for the E2 -HH1 and E1 -HH1 transitions. The observed phenomenon may provide an effective method to control the intersubband scattering rate, which is a key factor of the so-called quantum cascade lasers. This is helpful for the population inversion between both the subbands in quantum wells.
Key words ：
73.40.Gk
78.66.Fd
41.20.-q
出版日期: 2002-10-01
引用本文:
AN Long;TANG Yan;ZHENG Hou-Zhi;ZHANG Ji-Dong;TAN Ping-Heng;YANG Fu-Hua;JI Yang;CHEN Yuan-Zhen. Occupation Modulation of Higher Subbands in a Three-Barrier Tunneling Structure with a Magnetic Field[J]. 中国物理快报, 2002, 19(10): 1509-1512.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2002/V19/I10/1509
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2002, Vol. 19 
