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Proceedings Paper

Performances of new green sensitive liquid photopolymers for volume phase holographic gratings
Author(s): Alessio Zanutta; Andrea Bianco; Filippo Maria Zerbi
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Paper Abstract

Liquid photopolymers produced by Polygrama-Lynx (SM-532TR and SM-532TRF) have been studied to determine their performances in terms of refractive index modulation, transparency and overall optical quality. Volume phase holographic gratings (VPHGs) based on these materials have been obtained using a 532 DPSS laser and the grating efficiency has been measured at different angles and wavelengths. Using the Kogelnik model and/or the RCWA approach, the thickness and the refractive index modulation has been determined for gratings as function of light exposure, line density, etc. Index modulations up to 0.03 together with good optical quality were obtained.

Paper Details

Date Published: 10 February 2012
PDF: 10 pages
Proc. SPIE 8281, Practical Holography XXVI: Materials and Applications, 828105 (10 February 2012); doi: 10.1117/12.908280
Show Author Affiliations
Alessio Zanutta, Politecnico di Milano (Italy)
INAF, Osservatorio Astronomico di Brera (Italy)
Andrea Bianco, INAF, Osservatorio Astronomico di Brera (Italy)
Filippo Maria Zerbi, INAF, Osservatorio Astronomico di Brera (Italy)


Published in SPIE Proceedings Vol. 8281:
Practical Holography XXVI: Materials and Applications
Hans I. Bjelkhagen; V. Michael Bove, Editor(s)

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