Please use this identifier to cite or link to this item: doi:10.22028/D291-24413
Title: A sol-gel derived AgCl photochromic coating on glass for holographic application
Author(s): Mennig, Martin
Krug, Herbert
Fink-Straube, Claudia
Oliveira, Peter William de
Schmidt, Helmut K.
Language: English
Year of Publication: 1992
OPUS Source: Sol-gel optics II : 20 - 22 July 1992, San Diego, California ; proceedings / John D. Mackenzie, chair/ed. - Bellingham, Wash. : SPIE, 1992. - (SPIE proceedings series ; 1758), S. 387-394
SWD key words: Sol-Gel-Verfahren
Kolloidales Silber
DDC notations: 620 Engineering and machine engineering
Publikation type: Conference Paper
Abstract: A sol-gel derived photochromic glass coating of about 1.5 µm in thickness is synthesized by infiltration of Ag+ into a predried Na-Al-B-Si gel layer. The formation of small Ag colloids is initiated by a soft heat treatment and the colloids are converted by a HCl vapour treatment into AgCl crystallites of about 40 nm in diameter. The coating darkens by UV irradiation, forming Ag crystallites of about 5 nm in size. This process is completely reversible at 400°C and no decay is observed in numerous cycles. An amplitude hologram which acts as a diffraction grating with a grating period of about 10 µm can be produced within this layer by a two-wave mixing experiment with laser light of 351 nm wavelength. The diffraction efficiency of this grating is determined to 0.11 %. After thermal erasing the diffraction pattern can be rewritten and erased repeatedly without any loss of efficiency.
Link to this record: urn:nbn:de:bsz:291-scidok-27196
Date of registration: 22-Feb-2010
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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