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Applied Physics Letters / Volume 93 / Issue 11 / LASERS, OPTICS, AND OPTOELECTRONICS

Appl. Phys. Lett. 93, 111112 (2008); http://dx.doi.org/10.1063/1.2987459 (3 pages)

Ultrahigh-Q two-dimensional photonic crystal slab nanocavities in very thin barriers

Eiichi Kuramochi, Hideaki Taniyama, Takasumi Tanabe, Akihiko Shinya, and Masaya Notomi

NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa 243-0198, Japan

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(Received 10 July 2008; accepted 29 August 2008; published online 18 September 2008)

We demonstrate that width-modulated line-defect nanocavities in photonic crystals with long air slots on either side can maintain an ultrahigh Q even with very thin in-plane photonic crystal (only several rows of air holes). Although it is commonly believed that high-Q photonic crystal nanocavities require relatively thick in-plane barriers, surprisingly these nanocavities fabricated in silicon photonic crystals exhibit an ultrahigh Q (>106) even with very thin barriers. This design may be useful for various nanocavity applications.

© 2008 American Institute of Physics

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KEYWORDS and PACS

Keywords

elemental semiconductors, microcavities, nanostructured materials, photonic crystals, Q-factor, silicon

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.2987459

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    H. Y. Ryu, S. -H. Kim, H. -G. Kim, J. -K. Hwang, Y. -H. Lee, and J. -S. Kim, Appl. Phys. Lett. 80, 3883 (2002)APPLAB000080000021003883000001.

    T. Yoshie, J. Vučković, A. Scherer, H. Chen, and D. Deppe, Appl. Phys. Lett. 79, 4289 (2001)APPLAB000079000026004289000001.

    T. Tanabe, A. Shinya, E. Kuramochi, S. Kondo, H. Tanayama, and M. Notomi, Appl. Phys. Lett. 91, 021110 (2007)APPLAB000091000002021110000001.

    E. Kuramochi, M. Notomi, S. Mitsugi, A. Shinya, and T. Tanabe, Appl. Phys. Lett. 88, 041112 (2006)APPLAB000088000004041112000001.

    E. Kuramochi, M. Notomi, S. Hughes, A. Shinya, T. Watanabe, and L. Ramunno, Phys. Rev. B 72, 161318(R) (2005).


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