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Article
Light Guiding in Low Index Materials using High-Index-Contrast Waveguides
We propose a novel high-index-contrast waveguide structure capable of light strong confinement and guiding in low-refractive-index materials. The principle of operation of this structure relies on the electric...
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Article
Raman Gain in Silicon Using Highly Confined Waveguide Structure
We show ultra-fast Raman gain dynamics in submicron-size silicon-on-insulator strip waveguide. Using high confinement structures and pico-second pump pulses, we show 6-dB net nonlinear gain with 20.7-W peak pu...
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Article
Micrometre-scale silicon electro-optic modulator
As electronic components continue to shrink, the metal interconnections between them will soon become the limiting factors on performance. Hence the interest in optical interconnections as replacements. The re...
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Article
Changing the colour of light in a silicon resonator
As the demand for high bandwidths in microelectronic systems increases, optical interconnect architectures are now being considered that involve schemes commonly used in telecommunications, such as wavelength-...
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Article
Breaking the delay-bandwidth limit in a photonic structure
Storing light on-chip, which requires that the speed of light be significantly slowed down, is crucial for enabling photonic circuits on-chip. Ultraslow propagation1,2,3 and even stop**4,5 of light have been de...
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Article
Open AccessActive dielectric antenna on chip for spatial light modulation
Integrated photonic resonators are widely used to manipulate light propagation in an evanescently-coupled waveguide. While the evanescent coupling scheme works well for planar optical systems that are naturall...
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Article
Direct chemical conversion of graphene to boron- and nitrogen- and carbon-containing atomic layers
Graphene and hexagonal boron nitride are typical conductor and insulator, respectively, while their hybrids hexagonal boron carbonitride are promising as a semiconductor. Here we demonstrate a direct chemical ...
