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Local tuning of photonic crystal cavities using chalcogenide glasses

Appl. Phys. Lett. 92, 043123 (2008); doi:10.1063/1.2839308

Published 31 January 2008

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Andrei Faraon,1 Dirk Englund,1 Douglas Bulla,2 Barry Luther-Davies,2 Benjamin J. Eggleton,3 Nick Stoltz,4 Pierre Petroff,4 and Jelena Vučković5
1Department of Applied Physics, Stanford University, Stanford, California 94305, USA
2Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), Laser Physics Centre, Australian National University, Canberra, ACT 0200, Australia
3Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), School of Physics, University of Sydney, Sydney, NSW, 2006, Australia
4Department of Electrical and Computer Engineering, University of California, Santa Barbara, California 93106, USA
5E. L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USA
We demonstrate a method to locally change the refractive index in planar optical devices by photodarkening of a thin chalcogenide glass layer deposited on top of the device. The method is used to tune the resonance of GaAs-based photonic crystal cavities by up to 3  nm at 940  nm. The method has broad applications for postproduction tuning of photonic devices. ©2008 American Institute of Physics
History: Received 5 November 2007; accepted 8 January 2008; published 31 January 2008
Permalink: http://link.aip.org/link/?APPLAB/92/043123/1
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KEYWORDS and PACS

Keywords
PACS
  • 42.70.Qs
    Photonic bandgap materials
  • 42.25.Gy
    Edge and boundary effects; optical reflection and refraction
  • YEAR: 2008

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
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REFERENCES (23)
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