Authors:
Claire Lefort
;
David Moreau
;
Philippe Lévêque
and
Rodney O'Connor
Affiliation:
XLIM Institute, CNRS and Limoges University UMR 7252, France
Keyword(s):
Optical Temperature Measurement, Infrared Laser Light Excitation, Evolution of Temperature, Fluorescence of Rhodamine B.
Related
Ontology
Subjects/Areas/Topics:
Biomedical Optics
;
Optical Instrumentation
;
Optics
;
Photodetectors, Sensors and Imaging
;
Photonics
;
Photonics, Optics and Laser Technology
;
Spectroscopy, Imaging and Metrology
Abstract:
The use of infrared laser light (IRLL) for biomedical applications has gained momentum the potential
applications in humans. The use of IRLL presents some limitations due to the dangerousness of these
radiations when exceeding some safety thresholds depending on the target tissue. This position paper
describes step by step a well-known technical method usually applied for microfluidics but here applied for
the first time to measure the temperature and the heat evolution in a cell culture environment under IRLL
excitation at 800 nm. The measurement of temperature is based on the property of Rhodamine B (RhB), a
fluorescent dye whose fluorescence intensity decreases linearly with temperature increases, illustrated by
preliminary microscopic measurements of temperature in cell culture dishes containing RhB solution under
the IRLL excitation from 0 mW to 300 mW.