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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 26 — Dec. 30, 2013
  • pp: 32468–32483

Slotted photonic crystal nanobeam cavity with an ultrahigh quality factor-to-mode volume ratio

Paul Seidler, Kevin Lister, Ute Drechsler, Jens Hofrichter, and Thilo Stöferle  »View Author Affiliations


Optics Express, Vol. 21, Issue 26, pp. 32468-32483 (2013)
http://dx.doi.org/10.1364/OE.21.032468


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Abstract

We describe the design, fabrication, and characterization of a 1-dimensional silicon photonic crystal cavity with a quality factor-to-mode volume ratio greater than 107, which exceeds the highest previous values by an order of magnitude. The maximum of the electric field is outside the silicon in a void formed by a central slot. An extremely small calculated mode volume of 0.0096 (λvac/n)3 is achieved through the abrupt change of the electric field in the slot, despite which a high quality factor of 8.2 × 105 is predicted by simulation. Quality factors up to 1.4 × 105 are measured in actual devices. The observation of pronounced thermo-optic bistability is consistent with the strong confinement of light in these cavities.

© 2013 Optical Society of America

OCIS Codes
(130.3060) Integrated optics : Infrared
(130.3120) Integrated optics : Integrated optics devices
(230.5750) Optical devices : Resonators
(260.5740) Physical optics : Resonance
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(220.4241) Optical design and fabrication : Nanostructure fabrication

ToC Category:
Integrated Optics

History
Original Manuscript: October 9, 2013
Revised Manuscript: December 7, 2013
Manuscript Accepted: December 10, 2013
Published: December 20, 2013

Citation
Paul Seidler, Kevin Lister, Ute Drechsler, Jens Hofrichter, and Thilo Stöferle, "Slotted photonic crystal nanobeam cavity with an ultrahigh quality factor-to-mode volume ratio," Opt. Express 21, 32468-32483 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-26-32468


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