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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 24 — Dec. 15, 2012
  • pp: 5136–5138

Sharp whispering-gallery modes in rolled-up vertical SiO2 microcavities with quality factors exceeding 5000

Stefan Böttner, Shilong Li, Jens Trommer, Suwit Kiravittaya, and Oliver G. Schmidt  »View Author Affiliations


Optics Letters, Vol. 37, Issue 24, pp. 5136-5138 (2012)
http://dx.doi.org/10.1364/OL.37.005136


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Abstract

Record high quality (Q) factors of 5400 in vertical microtube ring resonators operated in emission mode are demonstrated. This is achieved by rolling-up a differentially strained SiO2 layer. We also present a theoretical model to investigate the limit of the Q factor. This model especially includes the effect of interlayer voids in the rolled-up geometry, which is found to have a larger effect than scattering due to notches in the spiral shape.

© 2012 Optical Society of America

OCIS Codes
(130.1750) Integrated optics : Components
(230.4000) Optical devices : Microstructure fabrication
(230.5750) Optical devices : Resonators
(260.5740) Physical optics : Resonance
(140.3945) Lasers and laser optics : Microcavities
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: October 1, 2012
Revised Manuscript: November 9, 2012
Manuscript Accepted: November 13, 2012
Published: December 10, 2012

Citation
Stefan Böttner, Shilong Li, Jens Trommer, Suwit Kiravittaya, and Oliver G. Schmidt, "Sharp whispering-gallery modes in rolled-up vertical SiO2 microcavities with quality factors exceeding 5000," Opt. Lett. 37, 5136-5138 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-24-5136

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