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Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy
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Dual-channel multiplex system for precise measurement of displacement and shape of spectral lines
Applied Optics
|January 23, 2010
Abstract:
The comparison of two spectral lines of almost identical wavelength can be made by recording simultaneously the output of a single spectrometer fed by two sources. The two channels are separated either through time-sharing or through modulation at two different frequencies and synchronous detection. Wavelength shifts as small as 1 mA have been determined for a measured shift/width ratio less than 0.05 on cesium absorption lines broadened by rare gases.
