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Proceedings Paper

Tunable wavelength surface quantum cascade lasers for chemical sensors in the 3-6 um spectral region
Author(s): A. Christou; C. C. Zhang; M. Linnick
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Paper Abstract

The authors present the design and calculated performance of a low threshold selectively oxidized Surface Emitting Laser (SEL) for operation at a wavelength of up 3.0 μm. The device is based on III-V quaternary semiconductor alloys and is grown by the Molecular Beam Epitaxy technique. The theoretical investigation of the optical properties of the compound semiconductor alloys allows for the selection of the optimum materials for highly reflective Bragg mirrors. The simulation of the designed SEL performance has been carried out by evaluation of the important laser characteristics such as threshold gain, threshold current density and external quantum efficiency. We present a design which integrates a thermoelectric controller and multi-SELs to provide continuous tunability.

Paper Details

Date Published: 16 October 2007
PDF: 8 pages
Proc. SPIE 6740, Optical Materials in Defence Systems Technology IV, 67400G (16 October 2007); doi: 10.1117/12.728851
Show Author Affiliations
A. Christou, Univ. of Maryland/College Park (United States)
C. C. Zhang, Univ. of Maryland/College Park (United States)
M. Linnick, Univ. of Maryland/College Park (United States)


Published in SPIE Proceedings Vol. 6740:
Optical Materials in Defence Systems Technology IV
James G. Grote; Francois Kajzar; Mikael Lindgren, Editor(s)

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