Optical measurement of carrier concentra
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Kitamoto, Takuya ;Inoue, Yusuke ;Yamada, Masayoshi ;Kawase, Tomohiro
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Article
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2007
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John Wiley and Sons
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English
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## Abstract The light absorption below the fundamental energy gap in nโtype GaAs has been investigated precisely. It is experimentally confirmed that there are the three different mechanisms: (a) the enhancement of fundamental absoption due to the shrinkage of energy gap and band filling by doping