Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/134441
Title: TUNING AND OPTOMECHANICS OF COUPLED PHOTONIC CRYSTAL NANOBEAM CAVITIES
Authors: DU HAN
Keywords: photonic crystal cavity, photonic molecule, nems, resonance tuning, optical gradient force, cavity optomechanics
Issue Date: 8-Sep-2016
Citation: DU HAN (2016-09-08). TUNING AND OPTOMECHANICS OF COUPLED PHOTONIC CRYSTAL NANOBEAM CAVITIES. ScholarBank@NUS Repository.
Abstract: This thesis focuses on mechanical tuning and optomechanics of photonic devices based on coupled photonic crystal nanobeam cavities, with studies including nano fabrication process development, device tuning with NEMS actuators, investigation of optical gradient force and tunable cavity optomechanics. High efficiency resonance tuning by electrostatically shifting the coupled nanobeam cavities in the lateral direction has been achieved. Coupling strength tuning over wide range with high precision is demonstrated and the repeatability and dynamic tuning are also proven. Based on the lateral tuning, lateral shearing optical gradient force is predicted and demonstrated in experiments. It is the first study of such lateral shearing optical force according to the author’s knowledge. The study of optical force has great potential in all-optical system development. Thus, a more attractive area, cavity optomechanics, is also investigated in this thesis and a tuning method of cavity optomechanics is proposed and experimentally demonstrated.
URI: http://scholarbank.nus.edu.sg/handle/10635/134441
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
DuH.pdf6.75 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

127
checked on Oct 25, 2018

Download(s)

91
checked on Oct 25, 2018

Google ScholarTM

Check


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