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Type: Artigo de periódico
Title: Holographic technique for measurement of the kinetic constant and optical modulation of photosensitive materials
Author: Avila, LF
Freschi, AA
Cescato, L
Abstract: We use a holographic technique to measure simultaneously and separately the temporal evolution of the refractive-index and the absorption coefficient modulations induced by light in a photosensitive material. The technique is phase sensitive, allowing separation of the signals from the phase and from the amplitude grating. The refractive-index and the absorption coefficient modulations as well as the kinetic constant of the photoreaction in the positive photoresist SC 1827 were measured at three different wavelengths. The results were compared with independent measurements, performed under homogeneous exposition. The good accord demonstrates the applicability of the technique to study photosensitive materials. (C) 2010 Optical Society of America
Country: EUA
Editor: Optical Soc Amer
Citation: Applied Optics. Optical Soc Amer, v. 49, n. 18, n. 3499, n. 3505, 2010.
Rights: aberto
Date Issue: 2010
Appears in Collections:Unicamp - Artigos e Outros Documentos

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