Abstract
Raman scattering is a chemically selective probing mechanism with diverse applications in industry and clinical settings. Yet, most samples are optically opaque limiting the applicability of Raman probing at depth. Here, we demonstrate chemically selective energy deposition behind a scattering medium by combining prior information on the chemical’s spectrum with the measurement of a spectrally resolved Raman speckle as a feedback mechanism for wavefront shaping. We demonstrate unprecedented sixfold signal enhancement in an epi-geometry, realizing targeted energy deposition and focusing on individual Raman active particles.
© 2022 Optica Publishing Group
Full Article | PDF ArticleMore Like This
YingJie Shi, EnLai Guo, Ming Sun, LianFa Bai, and Jing Han
Opt. Lett. 47(17) 4363-4366 (2022)
Jonathan V. Thompson, Graham A. Throckmorton, Brett H. Hokr, and Vladislav V. Yakovlev
Opt. Lett. 41(8) 1769-1772 (2016)
Benjamin R. Anderson, Natalie Gese, and Hergen Eilers
Opt. Lett. 47(8) 2036-2039 (2022)