Photoacoustic gas detector
S Nicoletti, P Andreucci, M Brun, S Gidon… - US Patent …, 2013 - Google Patents
(57) ABSTRACT A photoacoustic detection device including a nanophotonic circuit including
a plurality of semiconductor lasers capable of emitting a different frequencies; input couplers …
a plurality of semiconductor lasers capable of emitting a different frequencies; input couplers …
System and methods for molecular detection using intracavity laser absorption spectroscopy
A Muraviev - US Patent 9,212,990, 2015 - Google Patents
BACKGROUND It would be beneficial for different industries including those in the defense,
law enforcement, environmental, food, medical, and materials fields to be able to detect …
law enforcement, environmental, food, medical, and materials fields to be able to detect …