The University of Southampton
University of Southampton Institutional Repository

Scatterer induced Fano resonances in WS2 coated microsphere resonator

Scatterer induced Fano resonances in WS2 coated microsphere resonator
Scatterer induced Fano resonances in WS2 coated microsphere resonator

We report the effect of coating of tungsten disulphide (WS2) on fiberized silica microsphere resonator. Transmission measurements of the microsphere resonator have been done with the help of a tunable laser source and a tapered fiber. The quality (Q) factors have been measured for bare and WS2 coated microcavities. Results indicate that although there is a decrease of Q-factor from 107 to 105 after coating, it results in a cleaner spectrum. Cleaning of WGM spectra becomes important for applications such as sensing where observing a single mode resonance is essential in estimating the shift precisely. Asymmetric Fano-type profile has been observed in the clean spectrum due to the interaction of WS2 with the uncoated WGMs at 1550 nm.

Fano resonances, Microsphere; 2D materials, Transition metal dichalcogenides, Whispering gallery modes
0277-786X
1-7
SPIE
Bhattacharya, Shubhayan
64fa4af8-6833-4075-b4ad-f86b787a656f
Veluthandath, Aneesh V.
6a183413-e10f-4374-bc64-a33bf7fd9cfa
Huang, C. C.
825f7447-6d02-48f6-b95a-fa33da71f106
Murugan, Ganapathy Senthil
a867686e-0535-46cc-ad85-c2342086b25b
Bisht, Prem B.
9e617371-071b-48b1-9f33-2801ea08cace
Lecler, Sylvain
Astratov, Vasily N.
Minin, Igor V.
Bhattacharya, Shubhayan
64fa4af8-6833-4075-b4ad-f86b787a656f
Veluthandath, Aneesh V.
6a183413-e10f-4374-bc64-a33bf7fd9cfa
Huang, C. C.
825f7447-6d02-48f6-b95a-fa33da71f106
Murugan, Ganapathy Senthil
a867686e-0535-46cc-ad85-c2342086b25b
Bisht, Prem B.
9e617371-071b-48b1-9f33-2801ea08cace
Lecler, Sylvain
Astratov, Vasily N.
Minin, Igor V.

Bhattacharya, Shubhayan, Veluthandath, Aneesh V., Huang, C. C., Murugan, Ganapathy Senthil and Bisht, Prem B. (2020) Scatterer induced Fano resonances in WS2 coated microsphere resonator. Lecler, Sylvain, Astratov, Vasily N. and Minin, Igor V. (eds.) In Photonics and Plasmonics at the Mesoscale. vol. 11368, SPIE. pp. 1-7 . (doi:10.1117/12.2555631).

Record type: Conference or Workshop Item (Paper)

Abstract

We report the effect of coating of tungsten disulphide (WS2) on fiberized silica microsphere resonator. Transmission measurements of the microsphere resonator have been done with the help of a tunable laser source and a tapered fiber. The quality (Q) factors have been measured for bare and WS2 coated microcavities. Results indicate that although there is a decrease of Q-factor from 107 to 105 after coating, it results in a cleaner spectrum. Cleaning of WGM spectra becomes important for applications such as sensing where observing a single mode resonance is essential in estimating the shift precisely. Asymmetric Fano-type profile has been observed in the clean spectrum due to the interaction of WS2 with the uncoated WGMs at 1550 nm.

Full text not available from this repository.

More information

Published date: 1 April 2020
Venue - Dates: Photonics and Plasmonics at the Mesoscale 2020, , None, France, 2020-04-05 - 2020-04-09
Keywords: Fano resonances, Microsphere; 2D materials, Transition metal dichalcogenides, Whispering gallery modes

Identifiers

Local EPrints ID: 444647
URI: http://eprints.soton.ac.uk/id/eprint/444647
ISSN: 0277-786X
PURE UUID: 3c7ba00f-0abe-47bc-a53e-7c9b7728746e
ORCID for Aneesh V. Veluthandath: ORCID iD orcid.org/0000-0003-4306-6723
ORCID for C. C. Huang: ORCID iD orcid.org/0000-0003-3471-2463
ORCID for Ganapathy Senthil Murugan: ORCID iD orcid.org/0000-0002-2733-3273

Catalogue record

Date deposited: 28 Oct 2020 18:03
Last modified: 18 Feb 2021 17:41

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×