Model of thermo-optic nonlinear dynamics of photonic crystal cavities

Programmable photonic crystal nanobeam cavities.

We present dynamically reconfigurable photonic crystal nanobeam cavities, operating at ~1550 nm, that can be continuously and reversibly tuned over a 9.5 nm wavelength range. The devices are formed by two coupled nanobeam cavities, and the tuning is achieved by varying the lateral gap between the nanobeams. An electrostatic force, obtained by applying bias voltages directly to the nanobeams, is...

Automated optimization of photonic crystal slab cavities

Thanks to their high quality factor, combined to the smallest modal volume, defect-cavities in photonic crystal slabs represent a promising, versatile tool for fundamental studies and applications in photonics. In paricular, the L3, H0, and H1 defects are the most popular and widespread cavity designs, due to their compactness, simplicity, and small mode volume. For these cavities, the current ...

Thermo-optic modulation of plasmonic bandgap on metallic photonic crystal slab

Thermo-optic effect of an index guiding photonic crystal fiber with elastomer inclusions

In this work, we demonstrate numerically and experimentally the temperature dependence of a photonic crystal fiber (PCF) infiltrated with PDMS elastomer. We investigated the guiding properties of the PDMS-filled PCF and we present the variation of the effective index and effective modal areas of the fundamental guiding mode at 633 and 1550 nm, for a range of temperatures from 20°C to 75°C. Expe...

Mid-infrared photonic crystal cavities in silicon.

We demonstrate the design, fabrication, and characterization of silicon photonic crystal cavities realized in a silicon on insulator (SOI) platform, operating at a wavelength of 4.4 μm with a quality factor of 13,600. Cavity modes are imaged using the technique of scanning resonant scattering microscopy. To the best of our knowledge, this is the first demonstration of photonic devices fabricate...