Influence of blue and red light illumination on the holographic storage in an azopolyester–PMMA blend

C. Berges; I. Díez; Irakli Javakhishvili; Søren Hvilsted; C. Sánchez-Somolinos; R. Alcalá

doi:10.1016/j.optmat.2013.12.009

Influence of blue and red light illumination on the holographic storage in an azopolyester–PMMA blend

C. Berges, I. Díez, Irakli Javakhishvili, Søren Hvilsted, C. Sánchez-Somolinos, R. Alcalá

University of Zaragoza

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Volume holographic polarization gratings have been stored in thick films of blends of a side-chain azobenzene polyester and a poly(methyl methacrylate) (PMMA) homopolymers. The azobenzene content in the blend is 0.2wt%, and the holograms are recorded by using 2ms 4mJ/cm2 488nm light pulses. The dependence of holographic storage on the recording condition has been studied. No stable gratings can be recorded in thermally quenched films. The presence of cis isomers that can be induced by blue light irradiation seems to be necessary to store stable gratings. The cis isomer content and consequently the grating efficiency can be changed by blue and red light irradiation. By choosing appropriate conditions stable and rewritable polarization gratings have been recorded. Up to 20 gratings with diffraction efficiency values higher than 5×10−5 have been multiplexed.

Original language	English
Journal	Optical Materials
Volume	36
Issue number	4
Pages (from-to)	845-849
ISSN	0925-3467
DOIs	https://doi.org/10.1016/j.optmat.2013.12.009
Publication status	Published - 2014

Keywords

Azopolyesters
Blends
Photo-induced anisotropy
Volume holography

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title = "Influence of blue and red light illumination on the holographic storage in an azopolyester–PMMA blend",

abstract = "Volume holographic polarization gratings have been stored in thick films of blends of a side-chain azobenzene polyester and a poly(methyl methacrylate) (PMMA) homopolymers. The azobenzene content in the blend is 0.2wt%, and the holograms are recorded by using 2ms 4mJ/cm2 488nm light pulses. The dependence of holographic storage on the recording condition has been studied. No stable gratings can be recorded in thermally quenched films. The presence of cis isomers that can be induced by blue light irradiation seems to be necessary to store stable gratings. The cis isomer content and consequently the grating efficiency can be changed by blue and red light irradiation. By choosing appropriate conditions stable and rewritable polarization gratings have been recorded. Up to 20 gratings with diffraction efficiency values higher than 5×10−5 have been multiplexed.",

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T1 - Influence of blue and red light illumination on the holographic storage in an azopolyester–PMMA blend

AU - Berges, C.

AU - Díez, I.

AU - Javakhishvili, Irakli

AU - Hvilsted, Søren

AU - Sánchez-Somolinos, C.

AU - Alcalá, R.

PY - 2014

Y1 - 2014

N2 - Volume holographic polarization gratings have been stored in thick films of blends of a side-chain azobenzene polyester and a poly(methyl methacrylate) (PMMA) homopolymers. The azobenzene content in the blend is 0.2wt%, and the holograms are recorded by using 2ms 4mJ/cm2 488nm light pulses. The dependence of holographic storage on the recording condition has been studied. No stable gratings can be recorded in thermally quenched films. The presence of cis isomers that can be induced by blue light irradiation seems to be necessary to store stable gratings. The cis isomer content and consequently the grating efficiency can be changed by blue and red light irradiation. By choosing appropriate conditions stable and rewritable polarization gratings have been recorded. Up to 20 gratings with diffraction efficiency values higher than 5×10−5 have been multiplexed.

AB - Volume holographic polarization gratings have been stored in thick films of blends of a side-chain azobenzene polyester and a poly(methyl methacrylate) (PMMA) homopolymers. The azobenzene content in the blend is 0.2wt%, and the holograms are recorded by using 2ms 4mJ/cm2 488nm light pulses. The dependence of holographic storage on the recording condition has been studied. No stable gratings can be recorded in thermally quenched films. The presence of cis isomers that can be induced by blue light irradiation seems to be necessary to store stable gratings. The cis isomer content and consequently the grating efficiency can be changed by blue and red light irradiation. By choosing appropriate conditions stable and rewritable polarization gratings have been recorded. Up to 20 gratings with diffraction efficiency values higher than 5×10−5 have been multiplexed.

KW - Azopolyesters

KW - Blends

KW - Photo-induced anisotropy

KW - Volume holography

U2 - 10.1016/j.optmat.2013.12.009

DO - 10.1016/j.optmat.2013.12.009

M3 - Journal article

SN - 0925-3467

VL - 36

SP - 845

EP - 849

JO - Optical Materials

JF - Optical Materials

IS - 4

ER -

Influence of blue and red light illumination on the holographic storage in an azopolyester–PMMA blend

Abstract

Keywords

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