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Title: High-Q silicon photonic crystal cavity for enhanced optical nonlinearities

Abstract

We fabricate and experimentally characterize an H0 photonic crystal slab nanocavity with a design optimized for maximal quality factor, Q = 1.7 × 10{sup 6}. The cavity, fabricated from a silicon slab, has a resonant mode at λ = 1.59 μm and a measured Q-factor of 400 000. It displays nonlinear effects, including high-contrast optical bistability, at a threshold power among the lowest ever reported for a silicon device. With a theoretical modal volume as small as V = 0.34(λ/n){sup 3}, this cavity ranks among those with the highest Q/V ratios ever demonstrated, while having a small footprint suited for integration in photonic circuits.

Authors:
; ;  [1]; ;  [2]
  1. Institut de Physique de la Matière Condensée, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne (Switzerland)
  2. Laboratory of Theoretical Physics of Nanosystems, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne (Switzerland)
Publication Date:
OSTI Identifier:
22311339
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 105; Journal Issue: 10; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CAVITY RESONATORS; CRYSTALS; EQUIPMENT; EV RANGE; NONLINEAR OPTICS; QUALITY FACTOR; REFRACTIVE INDEX; SILICON; SLABS

Citation Formats

Dharanipathy, Ulagalandha Perumal, Tonin, Mario, Houdré, Romuald, Minkov, Momchil, and Savona, Vincenzo. High-Q silicon photonic crystal cavity for enhanced optical nonlinearities. United States: N. p., 2014. Web. doi:10.1063/1.4894441.
Dharanipathy, Ulagalandha Perumal, Tonin, Mario, Houdré, Romuald, Minkov, Momchil, & Savona, Vincenzo. High-Q silicon photonic crystal cavity for enhanced optical nonlinearities. United States. https://doi.org/10.1063/1.4894441
Dharanipathy, Ulagalandha Perumal, Tonin, Mario, Houdré, Romuald, Minkov, Momchil, and Savona, Vincenzo. 2014. "High-Q silicon photonic crystal cavity for enhanced optical nonlinearities". United States. https://doi.org/10.1063/1.4894441.
@article{osti_22311339,
title = {High-Q silicon photonic crystal cavity for enhanced optical nonlinearities},
author = {Dharanipathy, Ulagalandha Perumal and Tonin, Mario and Houdré, Romuald and Minkov, Momchil and Savona, Vincenzo},
abstractNote = {We fabricate and experimentally characterize an H0 photonic crystal slab nanocavity with a design optimized for maximal quality factor, Q = 1.7 × 10{sup 6}. The cavity, fabricated from a silicon slab, has a resonant mode at λ = 1.59 μm and a measured Q-factor of 400 000. It displays nonlinear effects, including high-contrast optical bistability, at a threshold power among the lowest ever reported for a silicon device. With a theoretical modal volume as small as V = 0.34(λ/n){sup 3}, this cavity ranks among those with the highest Q/V ratios ever demonstrated, while having a small footprint suited for integration in photonic circuits.},
doi = {10.1063/1.4894441},
url = {https://www.osti.gov/biblio/22311339}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 10,
volume = 105,
place = {United States},
year = {Mon Sep 08 00:00:00 EDT 2014},
month = {Mon Sep 08 00:00:00 EDT 2014}
}