Open AccessWavefront shaping enhanced Raman scattering in a turbid medium
Author(s) -
Jonathan V. Thompson,
Graham A. Throckmorton,
Brett H. Hokr,
Vladislav V. Yakovlev
Publication year - 2016
Publication title -
optics letters/optics index
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.41.001769
Subject(s) - wavefront , raman scattering , optics , signal (programming language) , scattering , raman spectroscopy , materials science , light scattering , physics , computer science , programming language
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.