Optimizing the laser-pulse configuration for coherent Raman spectroscopy.
作者： Dmitry Pestov , Robert K Murawski , Gombojav O Ariunbold , Xi Wang , Miaochan Zhi
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摘要: We introduce a hybrid technique that combines the robustness of frequency-resolved coherent anti-Stokes Raman scattering (CARS) with advantages time-resolved CARS spectroscopy. Instantaneous broadband excitation several characteristic molecular vibrations and subsequent probing these by an optimally shaped time-delayed narrowband laser pulse help to suppress nonresonant background retrieve species-specific signal. used this for spectroscopy sodium dipicolinate powder, which is similar calcium (a marker molecule bacterial endospores, such as Bacillus subtilis anthracis), we demonstrated rapid highly specific detection scheme works even in presence multiple scattering.
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