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The objective of this book will be to explore the possible
applications in the field of spectroscopy toward matters related to
security, the environment and forensics, with in-depth analyses of
relative difficulties and advantages of the various techniques.
Spectroscopic techniques have been contributing significantly to
diverse areas, such as material processing and characterisation,
communication, forensic science, and defence with an unequalled
precision by using lasers. Raman and infrared spectroscopic
techniques are regularly used in the studies on semiconductors,
microelectronics, catalysis and nano-materials. With the advent of
nanotechnology, new materials are being reported with an improved
sensitivity to various toxic gases, finger printing etc. Photo
acoustic spectroscopy, with a quartz tuning fork sensor, makes it
possible to detect trace amounts of explosive powders and residues
on surfaces from a distance. Laser induced breakdown spectroscopy
from the Curiosity rover, roaming the Mars surface, has been
sending valuable spectral data that will be used to understand the
existence of life. The present book encompasses a wide range of
topics pertaining to the variety of spectroscopic techniques which
would be of great importance in the detection of explosives,
chemical and biological agents and in meeting any defence threats.
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