Imaging the spin Hall effect of light inside semiconductors via absorption

被引：76

作者：

Menard, Jean-Michel ^{[1
]}

Mattacchione, Adam E.

Betz, Markus

van Driel, Henry M.

机构：

[1] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

来源：

OPTICS LETTERS | 2009年 / 34卷 / 15期

基金：

加拿大自然科学与工程研究理事会;

关键词：

IMBERT-FEDOROV SHIFTS; GOOS-HANCHEN; BEAM; REFLECTION;

D O I：

10.1364/OL.34.002312

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The opposite transverse shifts for the right and left circular polarization components of a 100 fs 820 nm linearly polarized pulse focused onto GaAs are observed in situ via absorption. A time-delayed normally incident probe pulse scanned across the excitation spot detects the differential circular dichroism associated with the pump-induced transfer of spin angular momentum from light to electrons. More generally, we show that for a normormally incident probe, one can observe the spin Hall effect for probe light through a variety of pump-induced changes to a material's optical properties. (C) 2009 Optical Society of America

引用

页码：2312 / 2314

页数：3

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