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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 24 — Nov. 22, 2010
  • pp: 24917–24925

Hollow Bragg waveguides fabricated by controlled buckling of Si/SiO2 multilayers

E. Epp, N. Ponnampalam, W. Newman, B. Drobot, J. N. McMullin, A. F. Meldrum, and R. G. DeCorby  »View Author Affiliations


Optics Express, Vol. 18, Issue 24, pp. 24917-24925 (2010)
http://dx.doi.org/10.1364/OE.18.024917


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Abstract

We describe integrated air-core waveguides with Bragg reflector claddings, fabricated by controlled delamination and buckling of sputtered Si/SiO2 multilayers. Thin film deposition parameters were tailored to produce a desired amount of compressive stress, and a patterned, embedded fluorocarbon layer was used to define regions of reduced adhesion. Self-assembled air channels formed either spontaneously or upon heating-induced decomposition of the patterned film. Preliminary optical experiments confirmed that light is confined to the air channels by a photonic band-gap guidance mechanism, with loss ~5 dB/cm in the 1550 nm wavelength region. The waveguides employ standard silicon processes and have potential applications in MEMS and lab-on-chip systems.

© 2010 OSA

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(130.5296) Integrated optics : Photonic crystal waveguides

ToC Category:
Integrated Optics

History
Original Manuscript: August 5, 2010
Revised Manuscript: October 29, 2010
Manuscript Accepted: October 31, 2010
Published: November 15, 2010

Citation
E. Epp, N. Ponnampalam, W. Newman, B. Drobot, J. N. McMullin, A. F. Meldrum, and R. G. DeCorby, "Hollow Bragg waveguides fabricated by controlled buckling of Si/SiO2 multilayers," Opt. Express 18, 24917-24925 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-24-24917


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