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|Type:||Artigo de periódico|
|Title:||Shape-asymmetry of the diffraction efficiency in Bi12TiO20 crystals: the simultaneous influence of absorption and higher harmonics|
|Abstract:||Studying moving holographic gratings in a Bi12TiO20 crystal with an applied external field. we have observed the appearance of a ''shape-asymmetry'' in the diffraction efficiency as a function of frequency detuning. The effect is mainly absorption-induced: for large modulation depth it is further enhanced by the influence of higher harmonics. (C) 1997 Elsevier Science B.V.|
|Editor:||Elsevier Science Bv|
|Appears in Collections:||Artigos e Materiais de Revistas Científicas - Unicamp|
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