title: Wavefront shaping enhanced Raman scattering in a turbid medium.
abstract: Spontaneous Raman scattering is a powerful tool for chemical sensing and imaging but suffers from a weak signal. In this Letter, we present an application of adaptive optics to enhance the Raman scattering signal detected through a turbid, optically thick material. This technique utilizes recent advances in wavefront shaping techniques for focusing light through a turbid media and applies them to chemical detection to achieve a signal enhancement with little sacrifice to the overall simplicity of the experimental setup. With this technique, we demonstrate an enhancement in the Raman signal from titanium dioxide particles through a highly scattering material. This technique may pave the way to label-free tracking using the optical memory effect.
authors.forename: Jonathan V
authors.initials: JV
authors.lastname: Thompson
authors.forename: Graham A
authors.initials: GA
authors.lastname: Throckmorton
authors.forename: Brett H
authors.initials: BH
authors.lastname: Hokr
authors.forename: Vladislav V
authors.initials: VV
authors.lastname: Yakovlev
mesh_terms: D012542:Scattering, Radiation; D013059:Spectrum Analysis, Raman