A multiplexed two-stage VIPA spectrometer for line-scanning Brillouin microscopy achieves 57 dB noise suppression without gas chambers by using the first VIPA as a bandpass filter and the second as a spectrum analyzer.
This interaction induces a frequency shift in the scattered light, known as the Brillouin shift, which carries the viscoelastic information of the material [1]
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Line-scanning Brillouin microscopy with multiplexed two-stage VIPA spectrometer
A multiplexed two-stage VIPA spectrometer for line-scanning Brillouin microscopy achieves 57 dB noise suppression without gas chambers by using the first VIPA as a bandpass filter and the second as a spectrum analyzer.