Ultrafast nonlinear absorption in an exciton Bragg reflector

被引：0

作者：

Ogawa, K ^{[1
]}

Matsui, Y ^{[1
]}

机构：

[1] Femtosecond Technol Res Assoc, Tsukuba, Ibaraki 3002635, Japan

来源：

ULTRAFAST PHENOMENA XI | 1998年 / 63卷

关键词：

D O I：

暂无

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Absorption saturation associated with quantum well excitons periodically distributed in a Bragg reflector was investigated by pump-probe reflectance spectroscopy. Femtosecond spectrogram of reflected probe pulses yielded frequency chirping due to cross-phase modulation. The frequency chirping, which was obtained as 3.2 THz for a time interval of 370 fs, gives rise to an optical phase shift as large as 1.6 pi. The phase shift evidences the enhancement of excitonic nonlinearity by photon confinement in the Bragg reflector.

引用

页码：289 / 291

页数：3

共 4 条

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GOSSARD, AC
WIEGMANN, W
[J]. PHYSICAL REVIEW LETTERS, 1985, 54 (12) : 1306 - 1309
[3] MILLER DAB, 1982, APPL PHYS LETT, V41, P925
[4] Spectral characteristics of an InP/InGaAs distributed absorbing Bragg reflector
Ogawa, K
Matsui, Y
Itatani, T
Ouchi, K
[J]. APPLIED PHYSICS LETTERS, 1998, 72 (02) : 155 - 157

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