26 September 2016 Excitation of silicon microspheres resonances with femtosecond laser fabricated glass waveguides
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Abstract
Optical waveguides were fabricated with femtosecond pulsed lasers on glass and characterized by transmission measurements. Glass waveguides were later used for excitation of the whispering gallery modes in a silicon microsphere. The coupling between the silicon microsphere and the femtosecond laser inscribed optical waveguide was simulated in both 90° elastic scattering and 0° transmission spectra. The silicon microsphere whispering gallery modes are available for both in the transverse electric and transverse magnetic polarizations with a spectral mode spacing of 0.25 nm. Optical resonances on silicon microsphere integrated with femtosecond laser written optical waveguides may lead to future quantum optical communication devices.
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Hüseyin Ozan Çirkinoğlu, Ulaş Sabahattin Gökay, Ali Serpengüzel, Belén Sotillo, Vibhav Bharadwaj, Shane M. Eaton, Roberta Ramponi, "Excitation of silicon microspheres resonances with femtosecond laser fabricated glass waveguides", Proc. SPIE 9927, Nanoengineering: Fabrication, Properties, Optics, and Devices XIII, 99271T (26 September 2016); doi: 10.1117/12.2239326; https://doi.org/10.1117/12.2239326
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