Processes that Intervene in the Generation of the Photoacoustic Effect in Alkali Halides with F-Centers
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概要
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The photoacoustic effect, produced by the $F$-center in alkali halide crystals, is analyzed using the configuration coordinate model. By using the configuration coordinate model it is possible to explain the temperature increase of the sample when the sample is illuminated and the $F$-centers absorb light. Also this model explains the piston effect upon the atmosphere that surrounds the sample when the sample is illuminated. The temperature increase and the piston effect, produced during the development of the photoacoustic effect, cause the sound wave generation in the atmosphere that surrounds the sample when the $F$-centers absorb light. Using this model, the temperature increase value for a KCl sample and the displacement of the faces of the crystal during the process for the following crystals: KCl, KBr, KI and NaCl, have been determined.
- 社団法人日本物理学会の論文
- 2004-01-15
著者
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Da Silva
Departamento De Fisica Universidad Tecnica Federico Santa Maria
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Da Silva
Departamento De Biologia Celular Universidade De Brasilia
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