Wavelength-sized cavities in high aspect InP/InGaAsP/InP photonic crystals

Wavelength-sized cavities in high aspect InP/InGaAsP/InP photonic crystals

Embedded cavities and waveguides in three-dimensional silicon photonic crystals

Fourier space design of high-Q cavities in standard and compressed hexagonal lattice photonic crystals.

Building upon the results of recent work [1], we use momentum space design rules to investigate high quality factor (Q) optical cavities in standard and compressed hexagonal lattice photonic crystal (PC) slab waveguides. Beginning with the standard hexagonal lattice, the results of a symmetry analysis are used to determine a cavity geometry that produces a mode whose symmetry immediately leads ...

Large-area fabrication of high aspect ratio tantalum photonic crystals for high-temperature selective emitters

The authors present highly selective emitters based on two-dimensional tantalum (Ta) photonic crystals, fabricated on 2 in. polycrystalline Ta substrates, for high-temperature applications, e.g., thermophotovoltaic energy conversion. In this study, a fabrication route facilitating large-area photonic crystal fabrication with high fabrication uniformity and accuracy, based on interference lithog...

Wavelength Demultiplexer using Heterostructure Ring Resonators in Triangular Photonic Crystals

In this paper a new type of wavelength demultiplexer using ring resonators in 2D triangular photonic crystal is presented. The designed demultiplexer contents two regions which each own a resonator. Two dielectric constants are used in this demultiplexer. These structures which are called hetero have the capability to be used in wavelength division multiplexing (WDM) systems. The average transf...