Detection systems and methods using coherent anti-stokes Raman spectroscopy

摘要

Systems and methods for remote and/or portable detection are provided. The system can include a source of coherent laser pulses, components for converting the coherent laser pulses into first beam pulses at a first wavelength value, second beam pulses at a second wavelength value, and third beam pulses at a third wavelength value. Systems can further include optical components configured to delay at least one of the first beam pulses, the second beam pulses, and the third beam pulses in order to create delayed beam pulses, and a focusing component configured direct a substantially collinear combination of the delayed beam pulses and two of a set of: the first beam pulses, the second beam pulses, and the third beam pulses, onto a sample.

主权项

1. A system for remote detection, the system comprising:
a source of coherent laser pulses; a parametric amplifier configured to convert the coherent laser pulses into first beam pulses at a first wavelength value and second beam pulses at a second wavelength value different from the first wavelength value; a first optical component configured to select third beam pulses from the coherent laser pulses at a third wavelength value different from the second wavelength value and the first wavelength value; a second optical component configured to delay at least one of the first beam pulses, the second beam pulses, and the third beam pulses in order to create delayed beam pulses; and a focusing component configured direct a substantially collinear combination of the delayed beam pulses and two of a set of: the first beam pulses, the second beam pulses, and the third beam pulses, onto a line, the line being substantially perpendicular to a direction of propagation of the collinear combination.