Volume 51, Issue 11 p. 2121-2145
REVIEW

Optical nanoantenna for beamed and surface-enhanced Raman spectroscopy

Vimarsh Awasthi

Vimarsh Awasthi

Centre for Sensors, Instrumentation and Cyber Physical System Engineering (SeNSE), Indian Institute of Technology Delhi, New Delhi, India

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Richa Goel

Richa Goel

Centre for Sensors, Instrumentation and Cyber Physical System Engineering (SeNSE), Indian Institute of Technology Delhi, New Delhi, India

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Shilpi Agarwal

Shilpi Agarwal

Centre for Sensors, Instrumentation and Cyber Physical System Engineering (SeNSE), Indian Institute of Technology Delhi, New Delhi, India

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Padmnabh Rai

Corresponding Author

Padmnabh Rai

School of Physical Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Mumbai, India

Correspondence

Padmnabh Rai, School of Physical Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Kalina, Santacruz (E), Mumbai 400098, India.

Email: [email protected]

Satish Kumar Dubey, Centre for Sensors, Instrumentation and Cyber Physical System Engineering (SeNSE), Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.

Email: [email protected]

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Satish Kumar Dubey

Corresponding Author

Satish Kumar Dubey

Centre for Sensors, Instrumentation and Cyber Physical System Engineering (SeNSE), Indian Institute of Technology Delhi, New Delhi, India

Correspondence

Padmnabh Rai, School of Physical Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Kalina, Santacruz (E), Mumbai 400098, India.

Email: [email protected]

Satish Kumar Dubey, Centre for Sensors, Instrumentation and Cyber Physical System Engineering (SeNSE), Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.

Email: [email protected]

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First published: 12 July 2020
Citations: 10

Abstract

Optical nanoantenna is a key component in plasmonic circuitry, which can receive or transmit an electromagnetic field in the near field of an object (nanomaterials). It has wide range of applications including surface-enhanced Raman scattering (SERS), photocatalytic reactions, remote SERS, solar cell, plasmonic nanoscopy, and quantum plasmonics. The main challenges in optical nanoantenna research include both fundamental understanding of the underlying physics and issues related to fabrication of low cost, high throughput nanostructures beyond the diffraction limit. The nanoscale feature size of optical antennas limits our ability to design, manufacture, and characterize their resonant behavior. This review investigates the fabrication methods and SERS applications of optical nanoantenna.