The University of Southampton
University of Southampton Institutional Repository

Germanium microsphere high-Q resonator

Germanium microsphere high-Q resonator
Germanium microsphere high-Q resonator
In this Letter, the fabrication and characterization of a microsphere resonator from the semiconductor germanium is demonstrated. Whispering gallery modes are excited in a 46 µm diameter germanium microsphere resonator using evanescent coupling from a tapered silica optical fiber with a waist diameter of 2 µm. Resonances with Q factors as high as 3.8 x 104 at wavelengths near 2 µm are observed. Because of their ultrahigh optical nonlinearities and extremely broad transparency window, germanium microsphere resonators offer the potential for optical processing devices, in particular at long wavelengths, such as around 2 µm.
0146-9592
728-730
Wang, Pengfei
a1ba240f-d4f0-4150-bcd8-cb418e841dcb
Lee, Timothy
beb3b88e-3e5a-4c3f-8636-bb6de8040fcc
Ding, Ming
086b25a3-e5c3-4501-a90d-43d734e19344
Dhar, Anirban
e9c2056f-ac65-4635-a1ff-7e0f1314bc28
Hawkins, Thomas
718ea907-5eb4-47b2-9c48-d56a788453c4
Foy, Paul
863d96b0-5edc-4bc0-9456-8ab009f5940d
Semenova, Yuliya
6e64157c-40b6-4eb5-938c-ae2dd348f652
Wu, Qiang
fad3844e-9eba-496c-876d-3bbc9ee4a689
Sahu, Jayanta
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Farrell, Gerald
6c4b8f27-d88c-41a2-87ff-f2466225798f
Ballato, John
a93092f5-bd5f-4126-ada9-142b93308ae5
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Wang, Pengfei
a1ba240f-d4f0-4150-bcd8-cb418e841dcb
Lee, Timothy
beb3b88e-3e5a-4c3f-8636-bb6de8040fcc
Ding, Ming
086b25a3-e5c3-4501-a90d-43d734e19344
Dhar, Anirban
e9c2056f-ac65-4635-a1ff-7e0f1314bc28
Hawkins, Thomas
718ea907-5eb4-47b2-9c48-d56a788453c4
Foy, Paul
863d96b0-5edc-4bc0-9456-8ab009f5940d
Semenova, Yuliya
6e64157c-40b6-4eb5-938c-ae2dd348f652
Wu, Qiang
fad3844e-9eba-496c-876d-3bbc9ee4a689
Sahu, Jayanta
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Farrell, Gerald
6c4b8f27-d88c-41a2-87ff-f2466225798f
Ballato, John
a93092f5-bd5f-4126-ada9-142b93308ae5
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8

Wang, Pengfei, Lee, Timothy, Ding, Ming, Dhar, Anirban, Hawkins, Thomas, Foy, Paul, Semenova, Yuliya, Wu, Qiang, Sahu, Jayanta, Farrell, Gerald, Ballato, John and Brambilla, Gilberto (2012) Germanium microsphere high-Q resonator. Optics Letters, 37 (4), 728-730. (doi:10.1364/OL.37.000728).

Record type: Article

Abstract

In this Letter, the fabrication and characterization of a microsphere resonator from the semiconductor germanium is demonstrated. Whispering gallery modes are excited in a 46 µm diameter germanium microsphere resonator using evanescent coupling from a tapered silica optical fiber with a waist diameter of 2 µm. Resonances with Q factors as high as 3.8 x 104 at wavelengths near 2 µm are observed. Because of their ultrahigh optical nonlinearities and extremely broad transparency window, germanium microsphere resonators offer the potential for optical processing devices, in particular at long wavelengths, such as around 2 µm.

Full text not available from this repository.

More information

Published date: 2012
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 333954
URI: http://eprints.soton.ac.uk/id/eprint/333954
ISSN: 0146-9592
PURE UUID: c2be9901-583f-4755-9911-c3bbf619c086

Catalogue record

Date deposited: 06 Mar 2012 14:07
Last modified: 01 Aug 2018 16:32

Export record

Altmetrics

Contributors

Author: Pengfei Wang
Author: Timothy Lee
Author: Ming Ding
Author: Anirban Dhar
Author: Thomas Hawkins
Author: Paul Foy
Author: Yuliya Semenova
Author: Qiang Wu
Author: Jayanta Sahu
Author: Gerald Farrell
Author: John Ballato

University divisions

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.

×