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Design and fabrication of a midinfrared photonic crystal defect cavity in indium antimonide
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Pugh, J. R., Ho, Y-L. D., Heard, P. J., Nash, G. R., Ashley, Tim, Rarity, J. G. and Cryan, M. J. (2009) Design and fabrication of a midinfrared photonic crystal defect cavity in indium antimonide. Journal of Optics A: Pure and Applied Optics, Volume 11 (Number 5). Article number 054006. doi:10.1088/1464-4258/11/5/054006 ISSN 1464-4258.
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Official URL: http://dx.doi.org/10.1088/1464-4258/11/5/054006
Abstract
Simulation results and fabrication details are presented for a two-dimensional photonic crystal membrane defect cavity for use as a laser in gas sensing and communications applications in the 3–4 µm wavelength range. The design is based on a modified L3 cavity in an aluminium–indium–gallium–antimonide membrane structure which contains two strained quantum wells. Peak emission is predicted at λ = 3.372 µm with a Q factor of 26 233 for an optimized membrane thickness of 1000 nm. A focused ion beam procedure is described for creating the membrane directly in a Fabry–Perot laser structure. A 400 nm thick membrane is fabricated and the photonic crystal pattern is etched into the membrane.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Journal or Publication Title: | Journal of Optics A: Pure and Applied Optics | ||||
Publisher: | Institute of Physics Publishing Ltd. | ||||
ISSN: | 1464-4258 | ||||
Official Date: | 18 March 2009 | ||||
Dates: |
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Volume: | Volume 11 | ||||
Number: | Number 5 | ||||
Article Number: | Article number 054006 | ||||
DOI: | 10.1088/1464-4258/11/5/054006 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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