Doped with DR13 molecules TiO2/organically modified silane organic–inorganic hybrid materials with low propagation loss and ultrafast optical response

Tianxi Gao; Wenxiu Que

doi:10.1117/1.OE.54.8.087103

26 August 2015 Doped with DR13 molecules TiO2/organically modified silane organic–inorganic hybrid materials with low propagation loss and ultrafast optical response

Tianxi Gao, Wenxiu Que

Author Affiliations +

Funded by: Natural Science Foundation of China, Doctoral Program of Higher Education, Science Technology Developing Project of Shaanxi Province, National Natural Science Foundation of China Major Research Plan on Nanomanufacturing, 111 Project of China

Optical Engineering, Vol. 54, Issue 8, 087103 (August 2015). https://doi.org/10.1117/1.OE.54.8.087103

Abstract

Disperse red 13 (DR13) azoaromatic chromophores were incorporated into sol-gel derived TiO₂/organically modified silane matrix to achieve a hybrid material with low propagation loss and ultrafast optical response. The planar waveguide and nonlinear optical properties of the as-derived hybrid films were studied by a prism coupling technique and an optical Kerr shutter technique with an 800-nm femtosecond laser, respectively. Results indicate that the response time of the bulk sample doped with 0.1% DR13 molecules is less than 208 fs, and the third-order nonlinear refractive index is estimated at about 1.141×10⁻¹⁵ cm²/W. The planar waveguide film with a low propagation loss less than 1 dB/cm for both transverse electric and transverse magnetic modes at a wavelength of 1312 nm can be easily obtained by a spin-coating process. It can be concluded from the above results that the as-prepared hybrid materials under present conditions are expected to have potential in ultrafast optical applications.

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Tianxi Gao and Wenxiu Que "Doped with DR13 molecules TiO2/organically modified silane organic–inorganic hybrid materials with low propagation loss and ultrafast optical response," Optical Engineering 54(8), 087103 (26 August 2015). https://doi.org/10.1117/1.OE.54.8.087103

Published: 26 August 2015

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KEYWORDS

Molecules

Refractive index

Ultrafast phenomena

Wave propagation

Silicon

Absorption

Nonlinear optics

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