Taimre, T, Bertling, K, Lim, YL et al. (3 more authors) (2014) Methodology for materials analysis usinpg swept-frequency feedback interferometry with terahertz frequency quantum cascade lasers. Optics Express, 22 (15). 18633 - 18647. ISSN 1094-4087
Abstract
Recently, we demonstrated an interferometric materials analysis scheme at terahertz frequencies based on the self-mixing effect in terahertz quantum cascade lasers. Here, we examine the impact of variations in laser operating parameters, target characteristics, laser-target system properties, and the quality calibration standards on our scheme. We show that our coherent scheme is intrinsically most sensitive to fluctuations in interferometric phase, arising primarily from variations in external cavity length. Moreover we demonstrate that the smallest experimental uncertainties in the determination of extinction coefficients are expected for lossy materials.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 03 Nov 2014 10:31 |
Last Modified: | 20 Oct 2015 11:31 |
Published Version: | http://dx.doi.org/10.1364/OE.22.018633 |
Status: | Published |
Publisher: | Optical Society of American (OSA) |
Refereed: | Yes |
Identification Number: | 10.1364/OE.22.018633 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:80611 |