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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 15 — Jul. 19, 2010
  • pp: 15523–15530

Mid-infrared characterization of solution-processed As2S3 chalcogenide glass waveguides

Candice Tsay, Elvis Mujagić, Christi K. Madsen, Claire F. Gmachl, and Craig B. Arnold  »View Author Affiliations

Optics Express, Vol. 18, Issue 15, pp. 15523-15530 (2010)

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An etch-free and cost-effective deposition and patterning method to fabricate mid-infrared chalcogenide glass waveguides for chemical sensing applications is introduced. As2S3 raised strip optical waveguides are produced by casting a liquid solution of As2S3 glass in capillary channel molds formed by soft lithography. Mid-IR transmission is characterized by coupling the output of a quantum cascade (QC) laser (λ = 4.8 µm) into the 40 µm wide by 10 µm thick multi-mode waveguides. Loss as low as 4.5 dB/cm is achieved using suitable substrate materials and post-processing. Optical absorption and surface roughness measurements indicate that the solution-processed films are of sufficient quality for optical devices and are promising for further development of waveguide-based mid-IR elements.

© 2010 OSA

OCIS Codes
(130.3060) Integrated optics : Infrared
(310.1860) Thin films : Deposition and fabrication
(130.2755) Integrated optics : Glass waveguides

ToC Category:
Integrated Optics

Original Manuscript: May 6, 2010
Revised Manuscript: June 25, 2010
Manuscript Accepted: June 25, 2010
Published: July 7, 2010

Candice Tsay, Elvis Mujagić, Christi K. Madsen, Claire F. Gmachl, and Craig B. Arnold, "Mid-infrared characterization of solution-processed As2S3 chalcogenide glass waveguides," Opt. Express 18, 15523-15530 (2010)

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