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Proceedings Paper

Chalcogenide molded freeform optics for QCL
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Paper Abstract

High-precision chalcogenide molded freeform micro-lenses were designed and produced to perfectly collimate and circularize mid-infrared Quantum Cascade Lasers (QCLs). The innovative micro-lens has an input surface with freeform contour to simultaneously converge the fast axis and further diverge the slow axis, while the output freeform surface collimates both axes. The 5-mm long freeform lens is such that the collimated output fast- and slow-axis beams are circular. This paper presents recent results on the chalcogenide molded freeform micro-lens prototypes specifically designed to collimate and circularize QCL at 9 micron.

Paper Details

Date Published: 8 May 2018
PDF: 7 pages
Proc. SPIE 10627, Advanced Optics for Defense Applications: UV through LWIR III, 106270R (8 May 2018); doi: 10.1117/12.2303906
Show Author Affiliations
Francois Chenard, IRflex Corp. (United States)
Oseas Alvarez, IRflex Corp. (United States)
Andrew Buff, IRflex Corp. (United States)
Allen Yi, The Ohio State Univ. (United States)


Published in SPIE Proceedings Vol. 10627:
Advanced Optics for Defense Applications: UV through LWIR III
Jay N. Vizgaitis; Bjørn F. Andresen; Peter L. Marasco; Jasbinder S. Sanghera; Miguel P. Snyder, Editor(s)

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