Dynamic group velocity control in a mechanically tunable photonic-crystal coupled-resonator optical waveguide

Autor:	John Hyunchul Hong, George Barbastathis, Satoshi Takahashi, Kehan Tian, William J. Arora
Rok vydání:	2009
Předmět:	Materials science Orders of magnitude (temperature) business.industry Physics::Optics Condensed Matter Physics Slow light Waveguide (optics) Electronic Optical and Magnetic Materials Crystal Resonator Lattice (module) Optics Group velocity business Photonic crystal
Zdroj:	Physical Review B. 80
ISSN:	1550-235X 1098-0121
DOI:	10.1103/physrevb.80.134305
Popis:	We describe a tunable slow light device based on a photonic-crystal with a mechanically adjustable coupled-resonator optical waveguide structure. The lateral energy confinement is implemented along a lattice shear defect with the group velocity actively controlled by shifting the shear along the defect interface over a distance of one crystal period. The group velocity tuning range can be anywhere from arbitrarily small (determined by the waveguide structure) to near the value expected in bulk media. We present the theory and a demonstration (via simulation) of a device configuration that is realistic to fabricate and achieves a tunable range of group velocity spanning at least three orders of magnitude. The conditions for stopping the light are also discussed for different configurations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7d28f2430a8a44aff1173825d53ff041 https://doi.org/10.1103/physrevb.80.134305 Zobrazit plný text záznamu