Rakic, AD, Lim, YL, Taimre, T et al. (19 more authors) (2016) Optical feedback effects on terahertz quantum cascade lasers: modelling and applications. In: SPIE Proceedings. SPIE Conference 10030: Infrared, Millimeter-Wave, and Terahertz Technologies IV, 12-14 Oct 2016, Beijing, China. Society of Photo-optical Instrumentation Engineers (SPIE) , p. 1003016.
Abstract
Terahertz (THz) quantum cascade lasers (QCLs) are compact sources of radiation in the 1–5 THz range with significant potential for applications in sensing and imaging. Laser feedback interferometry (LFI) with THz QCLs is a technique utilizing the sensitivity of the QCL to the radiation reflected back into the laser cavity from an external target. We will discuss modelling techniques and explore the applications of LFI in biological tissue imaging and will show that the confocal nature of the QCL in LFI systems, with their innate capacity for depth sectioning, makes them suitable for skin diagnostics with the well-known advantages of more conventional confocal microscopes. A demonstration of discrimination of neoplasia from healthy tissue using a THz, LFI-based system in the context of melanoma is presented using a transgenic mouse model.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. This is an author produced version of a paper published in SPIE Proceedings. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Feedback; Modeling; Quantum cascade lasers; Terahertz radiation; Tissues; Radiation; Skin; Interferometry; Laser resonators; Lasers |
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) |
Funding Information: | Funder Grant number EPSRC EP/J017671/1 Royal Society WM150029 EU - European Union 633054 |
Depositing User: | Symplectic Publications |
Date Deposited: | 13 Dec 2016 12:43 |
Last Modified: | 21 Jan 2018 12:36 |
Published Version: | https://doi.org/10.1117/12.2250621 |
Status: | Published |
Publisher: | Society of Photo-optical Instrumentation Engineers (SPIE) |
Identification Number: | 10.1117/12.2250621 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:109421 |