Some higher-order processes in the optical absorption and emission by impurities in nonmetals
The effects arising from quadratic electron-phonon interaction and anharmonicity on the optical spectra of imperfections in nonmetals are examined. The absorption or emission line-shape function is expressed in terms of Kubo's formula and is reduced to a trace over phonon states only via the ap...
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| Language: | English |
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2010
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| Online Access: | http://hdl.handle.net/2429/20539 |