Synthesis and characterization of a photochromic sol-gel material functionalized with azo dye

Xianjun Ke, Xingzhong Yan, Sangyup Song, Daqun Li, Jame J. Yang, Michael Renxun Wang

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

An azo dye functionalized sol-gel material has been designed and synthesized to possess photochromism under a green laser beam illumination control. 10-mW laser illumination with a spot size of 1 mm2 at 532 nm wavelength on the film material was found to result in 6 × 10-4 change in material refractive index. The response time of the material photochromism is around 50 ms (3-dB modulation bandwidth of 20 Hz). Further optical transmission measurements reveal low optical absorption by the film material at 1.55 μm wavelength window. The investigation of a tunable waveguide Bragg grating device with the sol-gel material suggests a new promising platform candidate for the fabrication of all-optical controlled photonic devices.

Original languageEnglish
Pages (from-to)1375-1380
Number of pages6
JournalOptical Materials
Volume29
Issue number11
DOIs
StatePublished - Jul 1 2007

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Azo Compounds
photochromism
Azo dyes
Sol-gels
dyes
illumination
gels
synthesis
wavelengths
Bragg gratings
Photochromism
optical absorption
platforms
laser beams
photonics
refractivity
waveguides
bandwidth
modulation
fabrication

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Synthesis and characterization of a photochromic sol-gel material functionalized with azo dye. / Ke, Xianjun; Yan, Xingzhong; Song, Sangyup; Li, Daqun; Yang, Jame J.; Wang, Michael Renxun.

In: Optical Materials, Vol. 29, No. 11, 01.07.2007, p. 1375-1380.

Research output: Contribution to journalArticle

Ke, Xianjun ; Yan, Xingzhong ; Song, Sangyup ; Li, Daqun ; Yang, Jame J. ; Wang, Michael Renxun. / Synthesis and characterization of a photochromic sol-gel material functionalized with azo dye. In: Optical Materials. 2007 ; Vol. 29, No. 11. pp. 1375-1380.
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