Enhanced Nanoparticle Detection with Quasi-Droplet Modes

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

We demonstrate nanoparticle sensing with quasi-droplet modes in an ultrathin-walled hollow whispering gallery resonator (WGR). The quasi-droplet whispering gallery modes (WGMs) allow the detection sensitivity to go beyond that achieved by the weak interactions of the evanescent field in solid WGRs. Experimental results with our hollow WGRs show 400 MHz mode shifts for WGM interaction with 100 nm particles and a corresponding linewidth broadening of 75 MHz, exceeding the detection sensitivity previously reported.

Original languageEnglish
Title of host publication2018 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781943580453
Publication statusPublished - 2 Jul 2018
Externally publishedYes
Event2018 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2018 - Wanchai, Hong Kong
Duration: 29 Jul 20183 Aug 2018

Publication series

Name2018 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2018

Conference

Conference2018 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2018
Country/TerritoryHong Kong
CityWanchai
Period29/07/183/08/18

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