title: Multiplex Raman induced Kerr effect microscopy.
abstract: We report spectrally-resolved chemical imaging based on Raman induced Kerr effect spectroscopy (RIKES). When used with circularly-polarized pump excitation, multiplex RIKES offers the potential for spectrally-resolved imaging free of the nonresonant background that plagues coherent anti-Stokes Raman scattering. RIKES does however have a highly sample-dependent birefringent background that limits its sensitivity and can introduce spectral distortions. We demonstrate that in low birefringence samples multiplex RIKES microscopy offers an enhanced signal-to-noise ratio compared to multiplex stimulated Raman scattering (SRS) when implemented in a high polarization-purity, low frequency chopping scheme.
authors.affiliation: Department of Physics and Biophysics, University of Michigan, Ann Arbor, Michigan 48109, USA.
authors.forename: Brandon R
authors.initials: BR
authors.lastname: Bachler
authors.forename: Martin E
authors.initials: ME
authors.lastname: Fermann
authors.forename: Jennifer P
authors.initials: JP
authors.lastname: Ogilvie
mesh_terms: D004867:Equipment Design; D008853:Microscopy / Q000295:instrumentation* / Q000379:methods*; D008863:Microspheres; D008962:Models, Theoretical; D011137:Polystyrenes; D013059:Spectrum Analysis, Raman / Q000295:instrumentation* / Q000379:methods*
chemical_list: D011137:Polystyrenes