26 August 2015 Doped with DR13 molecules TiO2/organically modified silane organic–inorganic hybrid materials with low propagation loss and ultrafast optical response
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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.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Tianxi Gao, Tianxi Gao, Wenxiu Que, 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 . Submission:
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