High-Q whispering-gallery mode in the photonic crystal hexagonal cavity

Han-Youl Ryu; Masaya Notomi; Yong-Hee Lee; Guk-Hyun Kim; G. Hugh Song

doi:10.1117/12.532297

14 June 2004 High-Q whispering-gallery mode in the photonic crystal hexagonal cavity

Han-Youl Ryu, Masaya Notomi, Yong-Hee Lee, Guk-Hyun Kim, G. Hugh Song

Proceedings Volume 5356, Optoelectronic Integrated Circuits VI; (2004) https://doi.org/10.1117/12.532297
Event: Integrated Optoelectronic Devices 2004, 2004, San Jose, CA, United States

Abstract

Using the finite-difference time-domain calculations, we study whispering-gallery-like modes in photonic crystal air-bridge slab hexagonal defect cavities as good candidates for high quality-factor (Q) and small mode-volume (V) resonant modes. In the hexapole mode of a modified single-defect cavity, structural parameters are optimized to obtain very large Qs of even higher than 2 x 10⁶ with small effective V of the order of cubic wavelength in material, the record value of theoretical Q/V. In addition, the H2-cavity whispering-gallery mode (WGM) is investigated and the defect geometry is modified to increase the Q of the WGM. By symmetrically distributing 12 nearest neighbor holes around the defect and controlling size of holes, it is possible to drastically increase the Q of >10⁵ while preserving effective mode volume of the order of the cubic wavelength in material. We expect the WGMs in photonic crystal cavities are quite promising for low-loss photonic integrated circuit elements and high-efficiency quantum optical devices.

Citation Download Citation

Han-Youl Ryu, Masaya Notomi, Yong-Hee Lee, Guk-Hyun Kim, and G. Hugh Song "High-Q whispering-gallery mode in the photonic crystal hexagonal cavity", Proc. SPIE 5356, Optoelectronic Integrated Circuits VI, (14 June 2004); https://doi.org/10.1117/12.532297

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