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 R. Wang

doi:10.1016/j.optmat.2006.06.019

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 R. Wang

Electrical and Computer Engineering

Research output: Contribution to journal › Article

14 Scopus citations

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 language	English (US)
Pages (from-to)	1375-1380
Number of pages	6
Journal	Optical Materials
Volume	29
Issue number	11
DOIs	https://doi.org/10.1016/j.optmat.2006.06.019
State	Published - Jul 2007

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ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Computer Science(all)
Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Electrical and Electronic Engineering

Cite this

Ke, X., Yan, X., Song, S., Li, D., Yang, J. J., & Wang, M. R. (2007). Synthesis and characterization of a photochromic sol-gel material functionalized with azo dye. Optical Materials, 29(11), 1375-1380. https://doi.org/10.1016/j.optmat.2006.06.019

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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.",

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10.1016/j.optmat.2006.06.019