Optical feedback effects on terahertz quantum cascade lasers: Modelling and applications

Aleksandar D. Rakić; Yah Leng Lim; Thomas Taimre; Gary Agnew; Xiaoqiong Qi; Karl Bertling; She Han; Stephen J. Wilson; Iman Kundu; Andrew Grier; Zoran Ikonić; Alexander Valavanis; Aleksandar Demić; James Keeley; Lianhe H. Li; Edmund H. Linfield; A. Giles Davies; Paul Harrison; Blake Ferguson; Graeme Walker; Tarl Prow; Dragan Indjin; H. Peter Soyer

doi:10.1117/12.2250621

Optical feedback effects on terahertz quantum cascade lasers: Modelling and applications

Aleksandar D. Rakić, Yah Leng Lim, Thomas Taimre, Gary Agnew, Xiaoqiong Qi, Karl Bertling, She Han, Stephen J. Wilson, Iman Kundu, Andrew Grier, Zoran Ikonić, Alexander Valavanis, Aleksandar Demić, James Keeley, Lianhe H. Li, Edmund H. Linfield, A. Giles Davies, Paul Harrison, Blake Ferguson, Graeme WalkerTarl Prow, Dragan Indjin, H. Peter Soyer

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

5 Citations (Scopus)

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.

Original language	English
Title of host publication	Infrared, Millimeter-Wave, and Terahertz Technologies IV
Editors	Cunlin Zhang, Xi-Cheng Zhang, Masahiko Tani
Publisher	SPIE
Number of pages	12
Volume	10030
ISBN (Electronic)	9781510604803
ISBN (Print)	9781510604797
DOIs	https://doi.org/10.1117/12.2250621
Publication status	Published - 8 Dec 2016
Externally published	Yes
Event	Infrared, Millimeter-Wave, and Terahertz Technologies IV - Beijing, China Duration: 12 Oct 2016 → 14 Oct 2016 Conference number: 4

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	10030
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Infrared, Millimeter-Wave, and Terahertz Technologies IV
Country/Territory	China
City	Beijing
Period	12/10/16 → 14/10/16

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Cite this

Rakić, A. D., Lim, Y. L., Taimre, T., Agnew, G., Qi, X., Bertling, K., Han, S., Wilson, S. J., Kundu, I., Grier, A., Ikonić, Z., Valavanis, A., Demić, A., Keeley, J., Li, L. H., Linfield, E. H., Davies, A. G., Harrison, P., Ferguson, B., ... Soyer, H. P. (2016). Optical feedback effects on terahertz quantum cascade lasers: Modelling and applications. In C. Zhang, X-C. Zhang, & M. Tani (Eds.), Infrared, Millimeter-Wave, and Terahertz Technologies IV (Vol. 10030). [1003016] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10030). SPIE. https://doi.org/10.1117/12.2250621

@inproceedings{e0c8b64d86974d8d862a03bd41f96e63,

title = "Optical feedback effects on terahertz quantum cascade lasers: Modelling and applications",

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.",

keywords = "Laser feedback interferometry, Quantum cascade lasers, Terahertz imaging, Tissue imaging",

author = "Raki{\'c}, {Aleksandar D.} and Lim, {Yah Leng} and Thomas Taimre and Gary Agnew and Xiaoqiong Qi and Karl Bertling and She Han and Wilson, {Stephen J.} and Iman Kundu and Andrew Grier and Zoran Ikoni{\'c} and Alexander Valavanis and Aleksandar Demi{\'c} and James Keeley and Li, {Lianhe H.} and Linfield, {Edmund H.} and Davies, {A. Giles} and Paul Harrison and Blake Ferguson and Graeme Walker and Tarl Prow and Dragan Indjin and Soyer, {H. Peter}",

note = "Funding Information: This research was supported by the Australian Research Council's Discovery Projects funding scheme (DP 160 103910), the Queensland Government's Advance Queensland programme, and the European Cooperation in Science and Technology (COST) Action BM1205. We also acknowledge support of the EPSRC UK (Grants EP/J017671/1 and DTG award) and the Royal Society (Wolfson Research Merit Awards WM110032 and WM150029). Publisher Copyright: {\textcopyright} 2016 SPIE.; Infrared, Millimeter-Wave, and Terahertz Technologies IV ; Conference date: 12-10-2016 Through 14-10-2016",

year = "2016",

month = dec,

day = "8",

doi = "10.1117/12.2250621",

language = "English",

isbn = "9781510604797",

volume = "10030",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

editor = "Cunlin Zhang and Xi-Cheng Zhang and Masahiko Tani",

booktitle = "Infrared, Millimeter-Wave, and Terahertz Technologies IV",

address = "United States",

}

Rakić, AD, Lim, YL, Taimre, T, Agnew, G, Qi, X, Bertling, K, Han, S, Wilson, SJ, Kundu, I, Grier, A, Ikonić, Z, Valavanis, A, Demić, A, Keeley, J, Li, LH, Linfield, EH, Davies, AG, Harrison, P, Ferguson, B, Walker, G, Prow, T, Indjin, D & Soyer, HP 2016, Optical feedback effects on terahertz quantum cascade lasers: Modelling and applications. in C Zhang, X-C Zhang & M Tani (eds), Infrared, Millimeter-Wave, and Terahertz Technologies IV. vol. 10030, 1003016, Proceedings of SPIE - The International Society for Optical Engineering, vol. 10030, SPIE, Infrared, Millimeter-Wave, and Terahertz Technologies IV, Beijing, China, 12/10/16. https://doi.org/10.1117/12.2250621

Optical feedback effects on terahertz quantum cascade lasers : Modelling and applications. / Rakić, Aleksandar D.; Lim, Yah Leng; Taimre, Thomas et al.

Infrared, Millimeter-Wave, and Terahertz Technologies IV. ed. / Cunlin Zhang; Xi-Cheng Zhang; Masahiko Tani. Vol. 10030 SPIE, 2016. 1003016 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10030).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Optical feedback effects on terahertz quantum cascade lasers

T2 - Infrared, Millimeter-Wave, and Terahertz Technologies IV

AU - Rakić, Aleksandar D.

AU - Lim, Yah Leng

AU - Taimre, Thomas

AU - Agnew, Gary

AU - Qi, Xiaoqiong

AU - Bertling, Karl

AU - Han, She

AU - Wilson, Stephen J.

AU - Kundu, Iman

AU - Grier, Andrew

AU - Ikonić, Zoran

AU - Valavanis, Alexander

AU - Demić, Aleksandar

AU - Keeley, James

AU - Li, Lianhe H.

AU - Linfield, Edmund H.

AU - Davies, A. Giles

AU - Harrison, Paul

AU - Ferguson, Blake

AU - Walker, Graeme

AU - Prow, Tarl

AU - Indjin, Dragan

AU - Soyer, H. Peter

N1 - Conference code: 4

PY - 2016/12/8

Y1 - 2016/12/8

N2 - 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.

AB - 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.

KW - Laser feedback interferometry

KW - Quantum cascade lasers

KW - Terahertz imaging

KW - Tissue imaging

UR - http://www.scopus.com/inward/record.url?scp=85011596016&partnerID=8YFLogxK

U2 - 10.1117/12.2250621

DO - 10.1117/12.2250621

M3 - Conference contribution

AN - SCOPUS:85011596016

SN - 9781510604797

VL - 10030

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Infrared, Millimeter-Wave, and Terahertz Technologies IV

A2 - Zhang, Cunlin

A2 - Zhang, Xi-Cheng

A2 - Tani, Masahiko

PB - SPIE

Y2 - 12 October 2016 through 14 October 2016

ER -

Rakić AD, Lim YL, Taimre T, Agnew G, Qi X, Bertling K et al. Optical feedback effects on terahertz quantum cascade lasers: Modelling and applications. In Zhang C, Zhang X-C, Tani M, editors, Infrared, Millimeter-Wave, and Terahertz Technologies IV. Vol. 10030. SPIE. 2016. 1003016. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2250621

Optical feedback effects on terahertz quantum cascade lasers: Modelling and applications

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