Seminar: “New Perspectives in Laser Spectroscopy as A
Science for Sensing, Monitoring and Diagnostics”, Matthieu Baudelet
CREOL 102
Friday, September 14, 2012 / 11-12pm
Matthieu Baudelet
Laser & Plasma Laboratory, Townes Laser Institute,
CREOL – The College of Optics and Photonics, University of
Central Florida
Abstract:
Lasers have had a profound impact
on analytical sciences for the last 50 years, as light sources with higher
brightness, irradiance, spectral resolution and coherence along with the
improvement of spectral analyzers and detectors towards higher compactness,
resolution and broader sensitivity range. These advances in technology have
transformed the capabilities of laser spectroscopy as a diagnostic tool in
applications ranging from environment monitoring, food analysis, national
defense, to space exploration.
The Laser & Plasma Laboratory
has been working to improve the integration of laser spectroscopy by providing
spectral signatures of higher quality at both elemental and molecular level and
replacing intensive chemical testing by spectroscopic analysis. With these
advances we have tackled the inherent challenges associated with the extraction
of quantitative information from complex spectra and samples by developing data
analysis based on physical understanding of the spectral signatures. The Laser
& Plasma Laboratory, in close collaboration with the National Center for
Forensic Science at UCF, has worked on the development of chemometrics for
quantitative decision making, especially for forensic analysis and Chemical,
Biological Radiological, Nuclear and Explosive (CBRNE) sensing.
This presentation provides an
overview of applications of laser spectroscopy for atomic (LIBS) and molecular
diagnostics (Ramans, IR absorption, fluorescence) performed during the last
five years in the Laser & Plasma Laboratory towards quantitative analysis
of food, bio-analysis, material characterization and CBRNE detection. Novel
perspectives in laser spectroscopy for biomedical applications at the single
cell level as well as metallomics for health monitoring will also be discussed
along with future integration in food analysis, environment monitoring and
stand-off quantitative sensing at the kilometer range by nonlinear laser
propagation.
Biography:
Matthieu Baudelet graduated his B.S. in
Physics in the University of Lille (France) in 2003, starting his experience in
Spectroscopy with Fourier-Transform Microwave Spectroscopy. In 2005, he graduated
his M.S. in "Laser and Spectroscopy" in the University of Lyon
(France) and continued to complete his Ph.D. in the 'Laboratoire de
Spectrométrie Ionique et Moléculaire' (Lasim, Lyon) working on
"Laser-induced plasma and spectroscopic analysis" under the direction
of Pr. Jin YU. He showed the advantages of LIBS for biological sensing and food
monitoring and wrote publications on the use of femtosecond pulses to improve
this technique and the development of analytical techniques to understand and
extract the maximum of information from the LIBS spectrum of bacteria.
Once graduated, he joined the Laser &
Plasma Laboratory in CREOL to lead the “Laser Spectroscopy and Sensing”
activity as a Senior Research Scientist. This activity started with the
combination of laser filamentation and LIBS for sensing applications at large
distances of explosives under a DOD MURI program. For four years, he has
developed and enlarged the scope of the activity to molecular spectroscopy
(fluorescence, Raman, IR) and its fusion with atomic spectroscopy for food and
environmental monitoring as well as optical manipulation and multi-spectral
characterization of single biological cells with optical tweezers. A large
aspect of his research concerns as well the quantitative extraction of
information from spectroscopic data for high confidence decision making. His
research led to the publication of 16 peer-reviewed papers, 2 patents, 13
conference proceedings, 6 press releases and more than 100 presentations in
conferences.
For More Information:
Matthieu Baudelet
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