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26 August 2010 Organic electro-optic single crystalline films for integrated optics
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We have fabricated organic electro-optic single crystalline thin films on various inorganic substrates. A high refractive index contrast of up to Δn = +0.6 at 1.55 μm with respect to glass substrates and up to Δn = -1.9 at 1.55 μm with respect to silicon substrates has been achieved. The single crystalline films can be grown quasi-epitaxially without lattice matching and also on amorphous substrates providing appropriate interface interactions and solid-liquid phase equilibrium conditions. The thickness of the single-crystalline films can vary between less than 30 nm and above 5000 nm; they are therefore appropriate for optical waveguiding structures, as well as nano-size electro-optic structures needed for future nanophotonics. Several organic electro-optic crystalline materials have been employed using solution or melt-based processing. The techniques are suitable for the fabrication of conventional wire electro-optic waveguides, silicon-organic hybrid electro-optic waveguides, as well as more complex organic-inorganic structures such as single-crystalline electro-optic microring resonators.
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Mojca Jazbinsek, Harry Figi, Christoph Hunziker, Blanca Ruiz, Seong-Ji Kwon, O-Pil Kwon, Zhou Yang, and Peter Günter "Organic electro-optic single crystalline films for integrated optics", Proc. SPIE 7774, Linear and Nonlinear Optics of Organic Materials X, 77740Q (26 August 2010);

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