Picosecond nonlinear optical response of a GaAs/AlGaAs asymmetric triple quantum well structure at room temperature

被引：0
|
作者：
Ahn, HS [1 ]
Yi, SN
Ryu, JY
Kim, SW
Mizutani, K
Yamaguchi, M
Sawaki, N
机构：
[1] Korea Maritime Univ, Dept Appl Phys, Pusan 606791, South Korea
[2] Jeju Natl Univ, Dept Phys, Cheju 690756, South Korea
[3] Andong Natl Univ, Dept Phys, Andong 760749, South Korea
[4] Nagoya Univ, Dept Elect, Chikusa Ku, Nagoya, Aichi 4648603, Japan
来源：
JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2001年 / 39卷 / 03期
关键词：
D O I：
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中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The optical nonlinearity in a GaAs/AlGaAs asymmetric triple quantum well (ATQW) structure is investigated by using pump-probe spectroscopy at room temperature. The input power dependence of the transmission of light through the ATQw sample shows a strong optical nonlinearity. The nonlinear behavior is due to the quantum-confined Stark effect accompanied by field-induced anticrossing between subbands. The transmittance of the probe pulse is given by a picosecond response. The ATQW was found to provide a new scheme of quantum devices at room temperature.
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页码：451 / 453
页数：3
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