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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 3, Iss. 8 — Aug. 1, 2013
  • pp: 1197–1204

Degenerately doped InGaBiAs:Si as a highly conductive and transparent contact material in the infrared range

Y. Zhong, P. B. Dongmo, L. Gong, S. Law, B. Chase, D. Wasserman, and J. M. O. Zide  »View Author Affiliations


Optical Materials Express, Vol. 3, Issue 8, pp. 1197-1204 (2013)
http://dx.doi.org/10.1364/OME.3.001197


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Abstract

We demonstrate molecular beam epitaxy (MBE) grown degenerately doped InGaBiAs:Si as a new transparent contact material usable from the near-infrared (near-IR) to the mid-infrared (mid-IR). This material system can exhibit high transparency over large portions of the 1.3-12.5 μm wavelength range, with the exact transparency windows determined by the material carrier concentration. As a comparison, the transmittance of the more conventional IR contact material, Indium Tin Oxide (ITO), drops rapidly for wavelengths longer than 1.5 μm. The conductivity of InGaBiAs:Si is also much higher than ITO due to its high doping concentration and good mobility. Our transmission spectra are modeled using a transfer matrix formalism, and the resulting modeled IR transmission spectra closely match our experimental results with proper choice of two fitting parameters, the material plasma frequency and the scattering rate.

© 2013 OSA

OCIS Codes
(160.6000) Materials : Semiconductor materials
(310.6860) Thin films : Thin films, optical properties

ToC Category:
Semiconductors

History
Original Manuscript: June 17, 2013
Revised Manuscript: July 28, 2013
Manuscript Accepted: July 28, 2013
Published: July 30, 2013

Virtual Issues
Mid-IR Photonic Materials (2013) Optical Materials Express

Citation
Y. Zhong, P. B. Dongmo, L. Gong, S. Law, B. Chase, D. Wasserman, and J. M. O. Zide, "Degenerately doped InGaBiAs:Si as a highly conductive and transparent contact material in the infrared range," Opt. Mater. Express 3, 1197-1204 (2013)
http://www.opticsinfobase.org/ome/abstract.cfm?URI=ome-3-8-1197


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