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We present systematic predictions for light enhancement in optical nanowires with nanoscale air holes in the core through numerical modeling. We show that the light intensity within such holes is strongly dependent on the hole size and refractive index of the host material and that light enhancement becomes significant only when the hole size is less than a critical value: 70 nm for silica and F2...
The waveguide-based directional couplers in As2S3 glass were fabricated by using inductively coupled plasma (ICP) etching. Their ultrafast all-optical switching operation was demonstrated at 1.53 mum with switching peak power of 55 W
We report high performance Bragg gratings in As2S3 chalcogenide glass rib waveguides, written with a modified Sagnac interferometer for the first time. Grating growth dynamics obtained from an in-situ monitoring system are presented and analyzed
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