<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Norland Optical Adhesive (NOA) acrylate-based photopolymers were studied as a material for fabrication of volume gratings. Photopolymers were irradiated by a He-Cd laser of 325nm line interference pattern during holographic recording. We recorded transmission and reflection holograms. The formation of grating in photo-polymers can be explained by photopolymerization during the UV light irradiance. Diffraction efficiency in dependence on the sample thickness and on the polarization state/intensity of recording beam was investigated in the transmission mode. To achieve a better angular selectivity of the diffracted beam, the thickness of the prepared samples was raised up to 2.4 mm. In this work the diffraction efficiency >80% was achieved. The best angular selectivity of a diffracted beam was several minutes. Gratings with high diffraction efficiency and good angular selectivity can successfully be used in the telecommunications and data storage devices. The advantages of such a grating are long-term mechanical stability, low dependence on the temperature changes as well as simple and cheap preparation.</p></abstract>

Norland Optical Adhesive (NOA) acrylate-based photopolymers were studied as a material for fabrication of volume gratings. Photopolymers were irradiated by a He-Cd laser of 325nm line interference pattern during holographic recording. We recorded transmission and reflection holograms. The formation of grating in photo-polymers can be explained by photopolymerization during the UV light irradiance. Diffraction efficiency in dependence on the sample thickness and on the polarization state/intensity of recording beam was investigated in the transmission mode. To achieve a better angular selectivity of the diffracted beam, the thickness of the prepared samples was raised up to 2.4 mm. In this work the diffraction efficiency >80% was achieved. The best angular selectivity of a diffracted beam was several minutes. Gratings with high diffraction efficiency and good angular selectivity can successfully be used in the telecommunications and data storage devices. The advantages of such a grating are long-term mechanical stability, low dependence on the temperature changes as well as simple and cheap preparation.

Volume Grating Recording in Acrylate-Based Photopolymers

Institute of Solid State physics University of Latvia, Kengaraga street 8, Riga, LV-1063, LATVIA

Latvian Journal of Physics and Technical Sciences

{"article-title":"Volume Grating Recording in Acrylate-Based Photopolymers"}

Norland Optical Adhesive (NOA) acrylate-based photopolymers were studied as a material for fabrication of volume gratings. Photopolymers were irradiated by a...

Volume Grating Recording in Acrylate-Based Photopolymers

Pubblicato online: 16 lug 2010

Pagine: 13 - 22

DOI: https://doi.org/10.2478/v10047-010-0010-5

Parole chiave
volume grating, NOA photopolymer, angular selectivity, holographic recording

This content is open access.

Volume Grating Recording in Acrylate-Based Photopolymers

Pubblicato online: 16 lug 2010

Pagine: 13 - 22

DOI: https://doi.org/10.2478/v10047-010-0010-5

Parole chiavevolume grating, NOA photopolymer, angular selectivity, holographic recording

This content is open access.

Parole chiave
volume grating, NOA photopolymer, angular selectivity, holographic recording