We report on a fiber-format laser system for Fourier-transform coherent anti-Stokes Raman spectroscopy (FT-CARS) of toxic chemical hazards, such as chemical warfare agents (CWAs). The system is based on ytterbium-fiber technology featuring ultra-broad spectral coverage and high-sensitivity. High-quality CARS spectra with maximum Raman shifts of 3000 cm-1 and signal-to-noise ratio >200 for observation times of 160 μs are measured; a detection limit of one part per thousand is demonstrated with a cyanide/water solution. The system was developed as the basis for a highly accurate, sensitive, reliable and portable device for the real time detection of water contaminants and deposited CWAs at trace levels.
Fiber-lasers for coherent Raman detection of toxic chemical hazards
Coluccelli N.;Gambetta A.;Vicentini E.;Laporta P.;
2019-01-01
Abstract
We report on a fiber-format laser system for Fourier-transform coherent anti-Stokes Raman spectroscopy (FT-CARS) of toxic chemical hazards, such as chemical warfare agents (CWAs). The system is based on ytterbium-fiber technology featuring ultra-broad spectral coverage and high-sensitivity. High-quality CARS spectra with maximum Raman shifts of 3000 cm-1 and signal-to-noise ratio >200 for observation times of 160 μs are measured; a detection limit of one part per thousand is demonstrated with a cyanide/water solution. The system was developed as the basis for a highly accurate, sensitive, reliable and portable device for the real time detection of water contaminants and deposited CWAs at trace levels.| File | Dimensione | Formato | |
|---|---|---|---|
|
ProcSPIE_Paper_Number_11010_41.pdf
accesso aperto
:
Pre-Print (o Pre-Refereeing)
Dimensione
1.33 MB
Formato
Adobe PDF
|
1.33 MB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
