Cart (Loading....) | Create Account
Close category search window
 

Design of Ultrahigh- Q 1-D Photonic Crystal Microcavities

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Qin Chen ; Dept. of Electron. & Electr. Eng., Univ. of Bath, Bath ; Archbold, M.D. ; Allsopp, D.W.E.

Waveguide based 1-D photonic crystal (PC) microcavities in silicon-on-insulator are investigated by 2-D finite-difference time-domain method. Values up to 6.7 times106 for the quality factor (Q) are feasible if the cavities are properly designed. The factors that govern Q are analyzed in both real space and momentum space. Etching down into the SiO2 layer is found to give more than 20% improvement in Q compared to the structure in which etching is stopped at the oxide layer. Short air gap mirrors are used to reduce the vertical scattering loss. The addition to the Bragg mirrors of tapered periods optimized to produce a cavity mode with a near Gaussian shaped envelope results in a major reduction in vertical loss. A new tapered structure with varying Si block width demonstrates an ultrahigh-Q and relieves the fabrication constraints compared to the conventional air slots tapered structure.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:45 ,  Issue: 3 )

Date of Publication:

March 2009

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.