An inexpensive raman spectroscopy setup for raman, polarized raman and surface enhanced raman spectroscopy

Sinha, Rajeev K (2021) An inexpensive raman spectroscopy setup for raman, polarized raman and surface enhanced raman spectroscopy. Instruments and Experimental Techniques, 64 (6). pp. 840-847. ISSN 0020-4412

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Abstract

We present a simple and inexpensive lab-built Raman spectroscopy setup. In the setup a low-cost laser diode is used as an excitation source, the dichroic mirror used in usual Raman spectroscopy is replaced by a silver coated mirror with a hole in its center. In place of expensive notch filter, a long pass filter is used in the setup. This lab-built setup shows good performance towards Raman spectroscopy, polarized Raman spectroscopy and Surface Enhanced Raman Scattering (SERS). Three demonstrations: (i) identification of Raman signature of individual molecules Acetaminophen and Mefenamic acid in their mixture, (ii) polarized Raman spectroscopy of liquid cyclohexane and (iii) SERS spectroscopy of Rhodamine B dye with Au spherical nanoparticle, small Au nanorod and large Au nanorod are presented using this inexpensive lab-built Raman spectroscopy setup. The cost-effectiveness and performance of the simple lab-built setup makes it suitable for the research and undergraduate laboratories.

Item Type: Article
Subjects: Departments at MU > Atomic Molecular Physics
Depositing User: KMC Library
Date Deposited: 29 Dec 2021 08:44
Last Modified: 29 Dec 2021 08:44
URI: http://eprints.manipal.edu/id/eprint/157959

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