Terahertz imaging through self-mixing in a quantum cascade laser

Dean, Paul, Lim, Yah Leng, Valavanis, Alex, Kliese, Russell, Nikolic, Milan, Khanna, Suraj P., Lachab, Mohammad, Indjin, Dragan, Ikonic, Zoran, Harrison, Paul, Rakic, Aleksandar D., Linfield, Edmund H. and Davies, A. Giles (2011) Terahertz imaging through self-mixing in a quantum cascade laser. Optics Letters, 36 13: 2587-2589. doi:10.1364/OL.36.002587


Author Dean, Paul
Lim, Yah Leng
Valavanis, Alex
Kliese, Russell
Nikolic, Milan
Khanna, Suraj P.
Lachab, Mohammad
Indjin, Dragan
Ikonic, Zoran
Harrison, Paul
Rakic, Aleksandar D.
Linfield, Edmund H.
Davies, A. Giles
Title Terahertz imaging through self-mixing in a quantum cascade laser
Journal name Optics Letters   Check publisher's open access policy
ISSN 0146-9592
1539-4794
Publication date 2011-07
Sub-type Article (original research)
DOI 10.1364/OL.36.002587
Volume 36
Issue 13
Start page 2587
End page 2589
Total pages 3
Place of publication Washington, DC, United States
Publisher Optical Society of America
Collection year 2012
Language eng
Abstract We demonstrate terahertz (THz) frequency imaging using a single quantum cascade laser (QCL) device for both generation and sensing of THz radiation. Detection is achieved by utilizing the effect of self-mixing in the THz QCL, and, specifically, by monitoring perturbations to the voltage across the QCL, induced by light reflected from an external object back into the laser cavity. Self-mixing imaging offers high sensitivity, a potentially fast response, and a simple, compact optical design, and we show that it can be used to obtain high-resolution reflection images of exemplar structures.
Keyword Array
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
School of Information Technology and Electrical Engineering Publications
 
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