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Department of Physics, B.S.A.(P.G.) College, Mathura, Uttar Pradesh 281004, India

Dr. BhimraoAmbedkar University, Agra, Uttar Pradesh 282004, India

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Kunwar Yashwant Singh

https://orcid.org/0009-0004-4109-4899

Department of Physics, B.S.A.(P.G.) College, Mathura, Uttar Pradesh 281004, India

Dr. BhimraoAmbedkar University, Agra, Uttar Pradesh 282004, India

E-mail Address: drkysingh@gmail.com

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Himmat Singh Mahor

Department of Physics, B.S.A.(P.G.) College, Mathura, Uttar Pradesh 281004, India

Dr. BhimraoAmbedkar University, Agra, Uttar Pradesh 282004, India

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, and

Pramod Kumar Singh

https://orcid.org/0000-0001-6633-8379

Department of Physics, Hindustan College of Science & Technology, Farah, Mathura, Uttar Pradesh 281122, India

E-mail Address: drpksinghsengar@gmail.com

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Abstract

The electric field of incident light on metallic nanostructures goes through a dramatic increase in magnitude. This is because of the Surface Plasmon resonance. This change in the magnitude of the electric field takes place in a very short distance leading to a very high electric field gradient. This electric field gradient is very much capable of altering the Raman scattering as observed in our experiment performed on the Glycine in the presence of colloidal silver nano-prisms. We observed that new peaks at 560, 614 and 933 cm $^{- 1}$ appeared and the strength of peak 508 cm $^{- 1}$ increased. Also, a few peaks at 1501 and 1580 cm $^{- 1}$ disappeared. Further, an overall strength enhancement in peak is observed.

Keywords:

PACS: 78.30.-j, 33.20.Fb, 71.45.Gm

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