Broadband Coherent Anti-Stokes Raman Scattering Microscopic Spectroscopy Using Variable-Wavelength Soliton Pulses from a Photonic Crystal Fiber

摘要

The object of this work is to demonstrate broadband Coherent anti-Stokes Raman scattering microscopic spectroscopy using a fundamental soliton pulse from a photonic crystal fiber as a variable-wavelength light source, where the center wavelengths of soliton pulses are controlled by a pulse shaper based on a spatial light modulator. It is demonstrated that the Raman shifts for a single 6-mu m-diameter polystyrene bead were obtained for the broad range between 800 and 3100 cm~(-1) accurately. From the measurements, the three-dimensional shape of the polystyrene bead was plotted and the spatial resolutions were estimated.