The University of Dublin | Trinity College -- Ollscoil Átha Cliath | Coláiste na Tríonóide
Trinity's Access to Research Archive
Home :: Log In :: Submit :: Alerts ::

TARA >
School of Physics >
Physics >
Physics (Scholarly Publications) >

Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/36508

Title: Amplified spontaneous emission from a microtube cavity with whispering gallery modes
Author: GOUNKO, IOURI
DONEGAN, JOHN FRANCIS
PEROVA, TANIA
RAKOVICH, YURY
Author's Homepage: http://people.tcd.ie/jdonegan
http://people.tcd.ie/igounko
http://people.tcd.ie/perovat
http://people.tcd.ie/rakovicy
Keywords: Physics
Issue Date: 2007
Publisher: Society of Photo-optical Instrumentation Engineers (SPIE)
Citation: Y.P.,Rakovich, S. Balakrishnan, Y. Gun'ko T.S. Perova, A. Moore, and J.F. Donegan, Amplified spontaneous emission from a microtube cavity with whispering gallery modes, Proceedings of SPIE - The International Society for Optical Engineering, Photonic Materials, Devices, and Applications II, 6593, 2007, 65932G
Series/Report no.: 6593
Abstract: We present a detailed study of the photonic modes in microtube cavity of ~ 7-8 µm outer diameter that can act as micron-scale optical cylindrical resonator. We demonstrate a new route to the fabrication of individual microtubes with the maximum length of 200 µm, using a vacuum assisted wetting and filtration through a microchannel glass matrix. The microtubes were studied using micro-photoluminescence spectroscopy and luminescence lifetime imaging confocal microscopy. In the emission spectra of the microresonators we find periodic very narrow peaks corresponding to the whispering gallery modes of two orthogonal polarizations with quality factors upto 3200 at room temperature. In order to identify the peaks in the observed mode structure, we have adopted the boundary-value solution to the problem of scattering of electromagnetic waves by a dielectric micro-cylinder. A strong enhancement in photoluminescence decay rates at high excitation power suggest the occurrence of amplified spontaneous emission from a single microtube. The evanescent field in these photonic structures extends a couple of micrometers into the surroundings providing the possibility for efficient coupling to an external photonic device.
Description: PUBLISHED
URI: http://dx.doi.org/10.1117/12.717730
http://hdl.handle.net/2262/36508
Appears in Collections:Physics (Scholarly Publications)

Files in This Item:

File Description SizeFormat
Amplified spontaneous emission.pdfPublished (publisher's copy) - Peer Reviewed538.62 kBAdobe PDFView/Open


This item is protected by original copyright


Please note: There is a known bug in some browsers that causes an error when a user tries to view large pdf file within the browser window. If you receive the message "The file is damaged and could not be repaired", please try one of the solutions linked below based on the browser you are using.

Items in TARA are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback