Mixed-valence ion-doped PVA as potential materials for real-time holography

M. Bulinski; V. Kuncser; Iancu Iova; A. Bela; Hilmar Franke; U. Russo; G. Filoti

doi:10.1117/12.378670

23 February 2000 Mixed-valence ion-doped PVA as potential materials for real-time holography

M. Bulinski, V. Kuncser, Iancu Iova, A. Bela, Hilmar Franke, U. Russo, G. Filoti

Proceedings Volume 4068, SIOEL '99: Sixth Symposium on Optoelectronics; (2000) https://doi.org/10.1117/12.378670
Event: SIOEL: Sixth Symposium of Optoelectronics, 1999, Bucharest, Romania

Abstract

Mixed valence ion doped polymers are potential materials for the real time holography. We review the intimate mechanisms imposing suitable optical properties in Fe:PVA, stressing on the main role played by the Fe ions. Under the UV exposure, both the refractive index and the absorption coefficient are changing due to a local electron transfer from the PVA matrix to the Fe³⁺ ions. The absorption coefficient proved to be dependent on a new-formed low spin Fe²⁺ state whereas the refractive index and the absorption coefficient are changing due to a local electron transfer from the PVA matrix to the Fe³⁺ ions. The absorption coefficient proved to be dependent on a new-formed low spin Fe²⁺ state whereas the refractive index is related to the total content of the high spin Fe²⁺ state. The diffraction efficiency data are explained in terms of the Fe²⁺/Fe³⁺ ratio. Additional data concerning the electron transfer in Sn:PVA thin films are also discussed.

Citation Download Citation

M. Bulinski, V. Kuncser, Iancu Iova, A. Bela, Hilmar Franke, U. Russo, and G. Filoti "Mixed-valence ion-doped PVA as potential materials for real-time holography", Proc. SPIE 4068, SIOEL '99: Sixth Symposium on Optoelectronics, (23 February 2000); https://doi.org/10.1117/12.378670

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