Speaker: Sanjoy Patra
Topic: Surface Enhanced Raman Spectroscopy
Date & Time: Thursday, 26 August 2021 at 4:00 PM through MICROSOFT TEAMS
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Surface Enhanced Raman Scattering or “SERS” is a variant of Raman scattering that increase the sensitivity of the Raman signal by several orders of magnitude. Mostly for fluorophores, highly intense fluorescence sometimes obscure the less intense Raman signal rendering Raman spectroscopy not useful in several scenarios. Unlike Raman scattering , SERS needs a metallic nanostructured surface on which the adsorbed Raman active molecules lead to an enhanced Raman scattering signal suitable for detection down to single molecule level.
In my seminar, I will first introduce the basic concepts of Raman Scattering and the development of SERS. I will briefly talk about the theories behind SERS enhancement mechanism. I will conclude with the discussion of how SERS mechanism was recently exploited for real-time detection of the vibrational quantum beats from a single molecule.
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