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Fiber optic based system for polarization sensitive spectroscopy of semiconductor quantum structures

DSpace at IIT Bombay

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Title Fiber optic based system for polarization sensitive spectroscopy of semiconductor quantum structures
 
Creator ARORA, A
KARMAKAR, B
SHARMA, S
SCHARDT, M
MALZER, S
BANSAL, B
DOHLER, G
ARORA, BM
 
Subject wells
exciton
fields
 
Description We describe an optical fiber based setup for performing polarization resolved magneto-optical spectroscopy measurements under low temperatures (similar to 4 K) and high magnetic fields (similar to 8 T). The measurements are performed in a windowless helium Dewar. Circularly polarized light is produced inside the Dewar by inserting the polarizing elements between the fiber end and the sample. Photoconductivity spectra of a GaAs/AlGaAs multiquantum-well sample have been measured over the photon energy range of 1.5-1.7 eV in left and right circularly polarized light under crossed magnetic and electric fields. It is shown that reversing the direction of magnetic field produces the same spectral changes as caused by changing the direction of circular polarization with the optical components. (C) 2010 [doi:10.1063/1.3462977]
 
Publisher AMER INST PHYSICS
 
Date 2011-07-15T18:22:21Z
2011-12-26T12:49:37Z
2011-12-27T05:35:01Z
2011-07-15T18:22:21Z
2011-12-26T12:49:37Z
2011-12-27T05:35:01Z
2010
 
Type Article
 
Identifier REVIEW OF SCIENTIFIC INSTRUMENTS, 81(8), -
0034-6748
http://dx.doi.org/10.1063/1.3462977
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4343
http://hdl.handle.net/10054/4343
 
Language en