Light Induced Modulation of Absorption (LIMA) of CdS Crystals
1969 ◽
Vol 24
(9)
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pp. 1306-1310
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Keyword(s):
Abstract With chopped high intensity optical excitation a modulation of the optical absorption in a wide wavelength-range in CdS was observed. This light induced modulation of absorption is attributed to a redistribution of carriers over levels in the band gap following the chopping frequency. With this method the energy spectrum of certain traps and recombination centers can be determined and their frequency factor and capture cross section obtained. This method permits also the analysis of fast recombination centers.
2011 ◽
Vol 59
(2(3))
◽
pp. 1781-1784
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Keyword(s):
2003 ◽
Vol 40
(7)
◽
pp. 447-456
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Keyword(s):