TITLE

Theoretical investigation of a two-dimensional photonic crystal slab with truncated cone air holes

AUTHOR(S)
Tanaka, Yoshinori; Asano, Takashi; Akahane, Yoshihiro; Song, Bong-Shik; Noda, Susumu
PUB. DATE
March 2003
SOURCE
Applied Physics Letters;3/17/2003, Vol. 82 Issue 11, p1661
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The effects of truncated cone air holes on propagation losses from line defect waveguides in two-dimensional (2D) photonic crystal (PC) slabs are investigated. It is shown that coupling between TE-like waveguide modes and TM-like slab modes due to out-of-plane structural asymmetries can result in large propagation losses. It is also shown that coupling, and therefore propagation loss, does not occur in a frequency range where wave vectors of TE-like waveguide modes do not match projections of those of TM-like slab modes. The results are thought to be applicable to other structures exhibiting out-of-plane asymmetries, such as 2D PC slabs attached to silicon on insulator substrates.
ACCESSION #
9275620

 

Related Articles

  • Lightwave propagation through a 120° sharply bent single-line-defect photonic crystal waveguide. Tokushima, Masatoshi; Kosaka, Hideo; Tomita, Akihisa; Yamada, Hirohito // Applied Physics Letters;2/21/2000, Vol. 76 Issue 8 

    We have demonstrated 1.55 μm wavelength lightwave propagation through a 120° sharply bent waveguide formed in a triangular-lattice two-dimensional photonic crystal (2D PC). Such propagation has not previously been experimentally confirmed. The photonic crystal was fabricated in a...

  • Waveguiding in planar photonic crystals. Loncar, Marko; Nedeljkovic, Dusan; Doll, Theodor; Vuckovic, Jelena; Scherer, Axel; Pearsall, Thomas P. // Applied Physics Letters;9/25/2000, Vol. 77 Issue 13 

    Photonic crystal planar circuits designed and fabricated in silicon on silicon dioxide are demonstrated. Our structures are based on two-dimensional confinement by photonic crystals in the plane of propagation, and total internal reflection to achieve confinement in the third dimension. These...

  • Group velocity and propagation losses measurement in a single-line photonic-crystal waveguide on InP membranes. Letartre, X.; Seassal, C.; Grillet, C.; Rojo-Romeo, P.; Viktorovitch, P.; Le Vassor d’Yerville, M.; Cassagne, D.; Jouanin, C. // Applied Physics Letters;10/8/2001, Vol. 79 Issue 15, p2312 

    Single-line photonic-crystal waveguides are investigated. Photoluminescence experiments and three-dimensional calculation are performed and allow a clear identification of the guided modes. The propagation properties of the latter (group velocity, losses) are extracted from photoluminescence...

  • Photonic crystal structure with square symmetry within each layer and a three-dimensional band gap. Roundy, David; Joannopoulos, John // Applied Physics Letters;6/2/2003, Vol. 82 Issue 22, p3835 

    We present a layered photonic crystal structure having a connectivity that is different from diamond which possesses square symmetry within each layer. This structure has a complete photonic band gap of 18% of the midgap frequency with a dielectric contrast of 12:1, and is a structure with...

  • Resonant Photonic States in Coupled Heterostructure Photonic Crystal Waveguides. Cox, J. D.; Sabarinathan, J.; Singh, M. R. // Nanoscale Research Letters;Apr2010, Vol. 5 Issue 4, p741 

    In this paper, we study the photonic resonance states and transmission spectra of coupled waveguides made from heterostructure photonic crystals. We consider photonic crystal waveguides made from three photonic crystals A, B and C, where the waveguide heterostructure is denoted as B/A/C/A/B. Due...

  • Engineering the quality factors of coupled-cavity modes in photonic crystal slabs. Fussell, David P.; Dignam, Marc M. // Applied Physics Letters;4/30/2007, Vol. 90 Issue 18, p183121 

    The authors present a tight-binding approach to calculating the quality factor, or Q, of the modes of coupled-cavity systems in photonic crystal slabs. They show how this approach can be used to engineer coupled-cavity waveguides and arrays so as to maximize the Q of the modes. Due to...

  • Characteristics of a stick waveguide resonator in a two-dimensional photonic crystal slab. Kim, Se-Heon; Kim, Guk-Hyun; Kim, Sun-Kyung; Park, Hong-Gyu; Lee, Yong-Hee; Kim, Sung-Bock // Journal of Applied Physics;1/15/2004, Vol. 95 Issue 2, p411 

    Optical loss and polarization characteristics of the photonic crystal stick waveguide resonator modes were investigated using both theory and experiment. A stick waveguide resonator with 12 missing air holes was found to have a very high Q(>3 800 000) mode originating from the lossless guided...

  • Ab initio tight-binding approach to photonic-crystal based coupled cavity waveguides. Leuenberger, David; Ferrini, Rolando; Houdré, Romuald // Journal of Applied Physics;2/1/2004, Vol. 95 Issue 3, p806 

    We develop a model to study coupled cavity waveguides (CCWs) in photonic crystals, composed of linear chains of coupled cavities. By extending previous work on single mode cavities, we have developed a model applicable to any finite number of quasi-degenerate cavity modes. Our model, which uses...

  • Optimization of transmission properties of two-dimensional photonic crystal channel waveguide bends through local lattice deformation. Ntakis, Iraklis; Pottier, Pierre; De La Rue, Richard M. // Journal of Applied Physics;7/1/2004, Vol. 96 Issue 1, p12 

    We present an extended study of different topologies for lattice-deformed two-dimensional single line-defect (W1) photonic crystal channel waveguide bends and their effect on the optimization of the bend transmission properties. An enhancement of the spectral response by a factor of six was...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics