Terahertz thermometry: combining hyperspectral imaging and temperature mapping at terahertz frequencies

Naccache, R., Mazhorova, A., Clerici, M. , Piccoli, R., Khorashad, L. K., Govorov, A. O., Razzari, L., Vetrone, F. and Morandotti, R. (2017) Terahertz thermometry: combining hyperspectral imaging and temperature mapping at terahertz frequencies. Laser and Photonics Reviews, 11(5), 1600342. (doi: 10.1002/lpor.201600342)

[img]
Preview
Text
144369.pdf - Accepted Version

558kB

Abstract

The accurate and non-invasive determination of multiple physical parameters, with well-defined spatial resolution, is crucial for applications in manufacturing, chemistry, medicine and biology. Specifically, the ability to simultaneously measure both temperature and spectral signatures is still experimentally unavailable. To this end, we propose a mapping technique for biological systems, which exploits a linear correlation between terahertz wave reflectivity and temperature, and allows to spatially and spectrally resolve thermal distributions. This method is applied to a model biological system in two relevant cases where in one example, nanoplasmonic-induced photothermal effects are imaged gaining new insights into collective heating phenomena. In the second example, we demonstrate a joint thermal-hyperspectral imaging approach to chemically map the presence of a model drug formulation and simultaneously investigate its thermal stability in our biological system. This concept can be easily extended and widely applied to all materials that demonstrate a measurable change in their dielectric properties.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Clerici, Professor Matteo
Authors: Naccache, R., Mazhorova, A., Clerici, M., Piccoli, R., Khorashad, L. K., Govorov, A. O., Razzari, L., Vetrone, F., and Morandotti, R.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Laser and Photonics Reviews
Publisher:Wiley
ISSN:1863-8880
ISSN (Online):1863-8899
Published Online:15 August 2017
Copyright Holders:Copyright © 2017 WILEY-VCH Verlag G mbH & Co. KGaA, Weinheim
First Published:First published in Laser and Photonics Reviews 11(5): 1600342
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

University Staff: Request a correction | Enlighten Editors: Update this record