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Determination of the factors controlling the optical background absorption in nominally undoped and doped sillenites

Autor: M. Tapiero, Jean-Claude Launay, H. Marquet, J. P. Zielinger, J.C. Merle

Publikováno v: Optical Materials. 11:53-65

We investigated the background absorption spectrum of undoped and doped crystals within the BMO family (Bi 12 MO 20 , M=Ge, Si, Ti). Dopants were Al, Fe, Cu, Cu/V, and Cr. Many of the observed effects are consistent with the antisite Bi M absorption

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::32e3e1b3fe9a0c5572a6c77da716a265
https://doi.org/10.1016/s0925-3467(98)00018-4

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Photoconductivity studies in vanadium-doped CdTe and Cd1-xZnxTe

Autor: Kh. Allachen, J. P. Zielinger, Jean-Claude Launay, Z. Guellil, M. Tapiero

Publikováno v: Journal of Crystal Growth. :1142-1146

Semi-insulating Cd 1- x Zn x Te:V crystals, for x = 0.01, 0.04, 0.07 and 0.10, are investigated in comparison with CdTe : V i.e. for x = 0, and with undoped CdTe by spectral response of steady-state photoconductivity at various temperatures, mainly i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f88e62593a045ff985fee59dfb76cab4
https://doi.org/10.1016/s0022-0248(98)80239-x

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Determination of the mobility and transport properties of photocarriers in Bi12GeO20by the time‐of‐flight technique

Autor: J. P. Zielinger, Jean-Claude Launay, A. Ennouri, M. Tapiero, J. Y. Moisan, J. P. Vola

Publikováno v: Journal of Applied Physics. 74:2180-2191

A direct measurement of a key material parameter in photorefractivity, the charge carrier mobility, has been achieved only recently by means of a holographic time‐of‐flight technique. In this paper we report, as far as we know, the first successf

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a4f03851839f6109951484f7d3d1c3fc
https://doi.org/10.1063/1.354752

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Assessment of deep levels in photorefractive materials by transient photoelectric methods

Autor: J. P. Zielinger, M. Tapiero

Publikováno v: Journal de Physique III. 3:1327-1344

Depending on their characteristics (energy. concentration,...) localized imperfection levels, directly or indirectly, determine the properties of photoretractive materials. The aim of this paper is to present a summarized description of the principle

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::95217e10322f7d2b55bf0420949cec03
https://doi.org/10.1051/jp3:1993202

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Photorefractive materiais, effects and devices topical meeting Kiev - 1993 : Optical Properties of Doped Sillenites Matching as Unique Multilevel Intrinsic Absorption Center Model

Autor: H. Marquet, A. Ennouri, J.P. Zielinger, M. Tapiero, V. Chevrier, J.C. Launay

Publikováno v: Photorefractive Materials, Effects And Devices Prm'93.

Sillenites have attracted considerable interest because of their photorefractive properties.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7bb306c0bca33846e190c9abf65c1973
https://doi.org/10.1364/pmed.1993.tha.7

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Determination of the Mobility and Transport Properties of Photocarriers in BGO by the Time-of-Flight Technique

Autor: M. Tapiero, A. Ennouri, J. P. Zielinger, J. P. Vola, J. Y. Moisan, J. C. Launay

Publikováno v: Photorefractive Materials, Effects, and Devices.

Sillenites are potentially a promising class of photorefractive materials for specific applications provided that crystals, insuring the corresponding optimal and reproducible operating characteristics, could be prepared. The first step in this direc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::20a0dc63ab82ef3fda4db99860d61de6
https://doi.org/10.1364/pmed.1991.tuc9

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Defects in Undoped and Doped Bi12GeO20

Autor: M. Tapiero, J.G. Gies, N. Benjelloun, J.C. Launay, J.P. Zielinger

Publikováno v: Topical Meeting on Photorefractive Materials, Effects, and Devices II.

Optimization of Bi12Ge O20 (BGO) for better photorefractive performance requires a systematic physico-chemical and physical characterization in parallel with material processing, investigation of photorefractive properties and implementation of nonli

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::528c689e8349b80abd027efafe1fdd7f
https://doi.org/10.1364/pmed.1990.a7

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