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Fabrication and characterization of surface nanoscale axial photonics microresonators

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Fabrication and characterization of surface nanoscale axial photonics microresonators

Hamidfar, Tabassom (2015) Fabrication and characterization of surface nanoscale axial photonics microresonators. Masters thesis, Concordia University.

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Abstract

Micro-scale, whispering gallery mode (WGM) resonators are important devices for trapping, slowing down, and intensifying light in opto-electronic applications. Of the many available silica-based devices, surface nanoscale axial photonics (SNAP) resonators are a new generation of WGM microresonators, consisting of an optical fiber with nanoscale variations of its effective radius. They have received great attention owing to their advantages over conventional silica-based devices, such as flexibility and ultra-low losses, which lead to ultra-high quality factors. They have demonstrated great potential as photonic micro-devices in switching, slowing light, filtering, lasing, and sensing with high precision, as well as for research on Anderson localization and tunnelling.

In this thesis, we present a new fabrication method for SNAP devices using a regular hydrogen-oxygen torch, requiring less equipment than current techniques. We have characterized our SNAP devices with evanescent spectroscopy, utilizing a tapered optical fiber as an excitation source. The transmission spectroscopy results show that our flame fabricated SNAP devices have modes with very high quality factors (~10^7) which can show significant thermal non-linear effects.

Divisions:Concordia University > Faculty of Arts and Science > Physics
Item Type:Thesis (Masters)
Authors:Hamidfar, Tabassom
Institution:Concordia University
Degree Name:M. Sc.
Program:Physics
Date:15 April 2015
Thesis Supervisor(s):Bianucci, Pablo
ID Code:979887
Deposited By: TABASSOM HAMIDFAR
Deposited On:13 Jul 2015 18:39
Last Modified:18 Jan 2018 17:50
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