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1 May 2014 Polymer and composite polymer slot waveguides
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A fully polymer slot Young interferometer operating at 633 nm wavelength was fabricated by using nanoimprint molding method. The phase response of the interference pattern was measured with several concentrations of glucose-water solutions, utilizing both TE and TM polarization states. The sensor was experimentally found to detect a bulk refractive index change of 6.4×10-6 RIU. Temperature dependency of silicon slot waveguide has been demonstrated to be reduced with composite slot waveguide structure. The slot filled with thermally stable polymer having negative thermo-optic coefficient showed nearly an athermal operation of silicon slot waveguide. Experimental results show that the slot waveguide geometry covered with Ormocomp has thermo-optical coefficient of 6 pm/K.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Marianne Hiltunen, William S. Fegadolli, Hugo L. R. Lira, Pasi Vahimaa, Jussi Hiltunen, Sanna Aikio, Vilson R. Almeida, and Pentti Karioja "Polymer and composite polymer slot waveguides ", Proc. SPIE 9133, Silicon Photonics and Photonic Integrated Circuits IV, 91331G (1 May 2014);


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