The transmission modes and losses of the poled nano-crystal and polymer composite PbTiO3/PEK-c thin-film waveguides

Quan Ren; Yuk Tak Chow; Xudong Yang; Zenghai Lv; Hongliang Yang; Hau Ping Chan; Pak Lim Chu

doi:10.1007/s11595-005-1066-6

Journal of Wuhan University of Technology Materials Science Edition ›› 2007, Vol. 22 ›› Issue (1) : 66 -69. DOI: 10.1007/s11595-005-1066-6

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The transmission modes and losses of the poled nano-crystal and polymer composite PbTiO₃/PEK-c thin-film waveguides

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Abstract

Composite thin films of PbTiO₃ nano-crystals and high transparency polymer polyetherketone (PEK-c) for application of non-linear optical devices were prepared by spin coating. The size of PbTiO₃ nano-crystals was estimated to be 30–40 nm using a transmission electron microscope. The refractive index and the mode propagation losses at 633 nm were measured using the prism coupling technique and improved photographic technique respectively. They were found to be 1.6545 and 2.00 dB cm⁻¹ (fundamental mode), respectively. Moreover, it is observed that this loss is increased at higher mode indices.

Keywords

optical properties / nano-crystals / thin-film waveguides / mode propagation losses

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Quan Ren, Yuk Tak Chow, Xudong Yang, Zenghai Lv, Hongliang Yang, Hau Ping Chan, Pak Lim Chu. The transmission modes and losses of the poled nano-crystal and polymer composite PbTiO₃/PEK-c thin-film waveguides. Journal of Wuhan University of Technology Materials Science Edition, 2007, 22(1): 66-69 DOI:10.1007/s11595-005-1066-6

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