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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/26786
Title: Programmable CGH on photochromic plates coded with DMD generated masks
Authors: Alata, R.
PARIANI, Giorgio 
Zamkotsian, F.
Lanzoni, P.
BIANCO, ANDREA 
Bertarelli, C.
Issue Date: 2017
Journal: OPTICS EXPRESS 
Number: 25
Issue: 6
First Page: 6945
Abstract: Computer Generated Holograms (CGHs) are used for wavefront shaping and complex optics testing. Present technology allows for recording binary CGHs. We propose a Digital Micro-mirror Device (DMD) as a reconfigurable mask, to record rewritable binary and grayscale CGHs on a photochromic plate. Opaque at rest, this plate becomes transparent when it is illuminated with visible light of suitable wavelength. We have successfully recorded the very first amplitude grayscale CGH, with a contrast greater than 50, which was reconstructed with a high fidelity in shape, intensity, size and location. These results reveal the high potential of this method for generating programmable/rewritable grayscale CGHs, which combine DMDs and photochromic substrates.
URI: http://hdl.handle.net/20.500.12386/26786
URL: https://www.osapublishing.org/oe/abstract.cfm?uri=oe-25-6-6945
ISSN: 1094-4087
DOI: 10.1364/OE.25.006945
Bibcode ADS: 2017OExpr..25.6945A
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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