Three-dimensional terahertz imaging using swept-frequency feedback interferometry with a quantum cascade laser

Keeley, J., Dean, P., Valavanis, A., Bertling, K., Lim, Y. L., Alhathlool, R., Taimre, T., Li, L. H., Indjin, D., Aleksandar, A. D., Linfield, E. H. and Davies, A. G. (2015) Three-dimensional terahertz imaging using swept-frequency feedback interferometry with a quantum cascade laser. Optics Letters, 40 6: 994-997. doi:10.1364/OL.40.000994


Author Keeley, J.
Dean, P.
Valavanis, A.
Bertling, K.
Lim, Y. L.
Alhathlool, R.
Taimre, T.
Li, L. H.
Indjin, D.
Aleksandar, A. D.
Linfield, E. H.
Davies, A. G.
Title Three-dimensional terahertz imaging using swept-frequency feedback interferometry with a quantum cascade laser
Journal name Optics Letters   Check publisher's open access policy
ISSN 0146-9592
1539-4794
Publication date 2015-03-15
Year available 2015
Sub-type Article (original research)
DOI 10.1364/OL.40.000994
Open Access Status
Volume 40
Issue 6
Start page 994
End page 997
Total pages 4
Place of publication Washington, DC, United States
Publisher Optical Society of America
Collection year 2016
Language eng
Abstract We demonstrate coherent three-dimensional terahertz imaging by frequency modulation of a quantum cascade laser in a compact and experimentally simple self-mixing scheme. Through this approach, we can realize significantly faster acquisition rates compared to previous schemes employing longitudinal mechanical scanning of a sample. We achieve a depth resolution of better than 0.1 μm with a power noise spectral density below −50 dB∕Hz, for a sampling time of 10 ms∕pixel
Keyword Coherence imaging
Terahertz imaging
Three-dimensional image acquisition
Semiconductor lasers
Quantum cascade
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2016 Collection
School of Information Technology and Electrical Engineering Publications
 
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Created: Mon, 09 Mar 2015, 16:03:51 EST by Karl Bertling on behalf of School of Information Technol and Elec Engineering