High-Q microcavities in 2D photonic crystal slabs studied by FDTD techniques and Padé approximation

Min Qiu; Ziyang Zhang

doi:10.1117/12.589579

13 April 2005 High-Q microcavities in 2D photonic crystal slabs studied by FDTD techniques and Pade approximation

Min Qiu, Ziyang Zhang

Proceedings Volume 5733, Photonic Crystal Materials and Devices III; (2005) https://doi.org/10.1117/12.589579
Event: Integrated Optoelectronic Devices 2005, 2005, San Jose, California, United States

Abstract

A series of microcavities in 2D hexagonal lattice photonic crystal slabs (PCS’s) are studied. A combination of FDTD techniques and Pade approximation with Baker's algorithm is used to accurately determine the resonant frequencies and quality factors of the cavity modes simultaneously. Q factor larger than 10⁶ is obtained for a one missing hole cavity. Another cavity with smaller and simpler design keeps Q factor larger than 10⁵. Microcavities in silicon-on-insulator-type (SOI-type) PCS’s are also studied. Simulations show that Q factors of cavities in SOI-type PCS’s are much smaller than those in the membrane PCS’s. Deep etching of air holes is still required to obtain relatively high Q cavities in SOI-type PCS’s.

Citation Download Citation

Min Qiu and Ziyang Zhang "High-Q microcavities in 2D photonic crystal slabs studied by FDTD techniques and Pade approximation", Proc. SPIE 5733, Photonic Crystal Materials and Devices III, (13 April 2005); https://doi.org/10.1117/12.589579

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available