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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 3, Iss. 5 — May. 1, 2013
  • pp: 533–545

Photo-induced refraction of nanoparticulate organic-inorganic TiO2-pHEMA hybrids

Andrii Uklein, Pavlo Gorbovyi, Mamadou Traore, Luc Museur, and Andrey Kanaev  »View Author Affiliations

Optical Materials Express, Vol. 3, Issue 5, pp. 533-545 (2013)

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We report on photoinduced modifications of the refractive index of nanoparticulate TiO2-pHEMA organic-inorganic hybrids. The samples with titania concentration ranging from 0.88·1020 to 17.6·1020 cm−3 were irradiated and analyzed with UV light at 375 nm. A reduction of the refractive index is observed in all samples. Although the photoinduced refraction was stronger in samples with higher titania concentration, its normalized value per Ti3+ center a0 = −2.4·10−23 cm3 remained constant. The change of refractive index correlates with the material photochromic response due to the accumulation of polaronic Ti3+ centers in the material.

© 2013 OSA

OCIS Codes
(160.4670) Materials : Optical materials
(160.4760) Materials : Optical properties
(160.5320) Materials : Photorefractive materials
(160.4236) Materials : Nanomaterials

ToC Category:

Original Manuscript: January 2, 2013
Revised Manuscript: February 7, 2013
Manuscript Accepted: February 7, 2013
Published: April 1, 2013

Virtual Issues
Hybrid Organic-Inorganic Materials for Novel Photonic Applications (2013) Optical Materials Express

Andrii Uklein, Pavlo Gorbovyi, Mamadou Traore, Luc Museur, and Andrey Kanaev, "Photo-induced refraction of nanoparticulate organic-inorganic TiO2-pHEMA hybrids," Opt. Mater. Express 3, 533-545 (2013)

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