Synthetic holograms based on photochromic diarylethenes
Date Issued
2017
Author(s)
•
Alata, Romain
•
•
Colella, Letizia
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Bertarelli, Chiara
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Lanzoni, Patric
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Zamkotsian, Frederic
Abstract
Diarylethenes are P-type photochromic systems showing reversible light-induced modulation of optical properties, e.g., transmittance and refractive index, in the visible and near infrared regions. Transmittance can be progressively tuned according to the illumination dose, and the pattern written and erased several times with light. We demonstrated binary Computer Generated Holograms based on of photochromic materials, to be used as adaptable reference surfaces in interferometric tests. We encoded by Direct Laser Writing binary amplitude Fresnel Zone Plates into photochromic substrates and successfully tested them into an interferometric setup. More recently, we exploited the non-threshold behavior of photochromic materials to encode grayscale CGHs, which give a better wavefront reconstruction than binary holograms. We propose to use a device based on a Digital Micro-mirror Device as a real-time reconfigurable mask. We recorded for the first time amplitude grayscale CGHs and reconstructed them with high fidelity in shape, intensity and size.
Coverage
Holography: Advances and Modern Trends V
All editors
Hrabovský, Miroslav; Sheridan, John T.; Fimia, Antonio
Series
Volume
10233
Start page
102330K
Conferenece
Holography: Advances and Modern Trends V
Conferenece place
Prague, Czech Republic
Conferenece date
24-27 April, 2017
Issn Identifier
0277-786X
Ads BibCode
2017SPIE10233E..0KP
Rights
open.access
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