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

Research output: Contribution to journalJournal articleResearchpeer-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 languageEnglish
JournalOptical Materials
Volume36
Issue number4
Pages (from-to)845-849
ISSN0925-3467
DOIs
Publication statusPublished - 2014

Keywords

  • Azopolyesters
  • Blends
  • Photo-induced anisotropy
  • Volume holography

Cite this

Berges, C., Díez, I., Javakhishvili, I., Hvilsted, S., Sánchez-Somolinos, C., & Alcalá, R. (2014). Influence of blue and red light illumination on the holographic storage in an azopolyester–PMMA blend. Optical Materials, 36(4), 845-849. https://doi.org/10.1016/j.optmat.2013.12.009
Berges, C. ; Díez, I. ; Javakhishvili, Irakli ; Hvilsted, Søren ; Sánchez-Somolinos, C. ; Alcalá, R. / Influence of blue and red light illumination on the holographic storage in an azopolyester–PMMA blend. In: Optical Materials. 2014 ; Vol. 36, No. 4. pp. 845-849.
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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.",
keywords = "Azopolyesters, Blends, Photo-induced anisotropy, Volume holography",
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Berges, C, Díez, I, Javakhishvili, I, Hvilsted, S, Sánchez-Somolinos, C & Alcalá, R 2014, 'Influence of blue and red light illumination on the holographic storage in an azopolyester–PMMA blend', Optical Materials, vol. 36, no. 4, pp. 845-849. https://doi.org/10.1016/j.optmat.2013.12.009

Influence of blue and red light illumination on the holographic storage in an azopolyester–PMMA blend. / Berges, C.; Díez, I.; Javakhishvili, Irakli; Hvilsted, Søren; Sánchez-Somolinos, C.; Alcalá, R.

In: Optical Materials, Vol. 36, No. 4, 2014, p. 845-849.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

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

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M3 - Journal article

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JO - Optical Materials

JF - Optical Materials

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