A needle probe to detect surface enhanced Raman scattering (SERS) within solid specimen

Srismrita Basu; Hsuan-Chao Hou; Debsmita Biswas; Subhodip Maulik; Theda Daniels-Race; Mandi Lopez; Michael Mathis; Martin Feldman

doi:10.1063/1.4975183

A needle probe to detect surface enhanced Raman scattering (SERS) within solid specimen

Rev Sci Instrum. 2017 Feb;88(2):023107. doi: 10.1063/1.4975183.

Authors

Srismrita Basu¹, Hsuan-Chao Hou¹, Debsmita Biswas¹, Subhodip Maulik¹, Theda Daniels-Race¹, Mandi Lopez¹, Michael Mathis¹, Martin Feldman¹

Affiliation

¹ Louisiana State University, Baton Rouge, Louisiana 70803, USA.

PMID: 28249498
DOI: 10.1063/1.4975183

Abstract

A needle probe has been developed to obtain surface enhanced Raman scattering data from within a solid specimen located remotely from the spectrometer. It produces the high signal strength of a single mode optical fiber but with a negligible fiber induced background. The observed Raman signal strength is comparable to that obtained with a microscope objective of the same numerical aperture in a conventional spectrometer arrangement and many times larger than that of probes using two fibers.