TITLE

Superprism effect in bidimensional rectangular photonic crystals

AUTHOR(S)
C&acaron;buz, A. I.; Centeno, E.; Cassagne, D.
PUB. DATE
March 2004
SOURCE
Applied Physics Letters;3/22/2004, Vol. 84 Issue 12, p2031
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this letter, we show that photonic crystals with geometries of lower symmetry, such as the rectangular geometry, are uniquely suited for applications involving the superprism effect. The extra degree of freedom provided by the anisotropy of the unit cell allows more freedom in searching for suitable iso-frequency curves. Also, the appearance of multiple orders of diffraction allows more than one incident plane wave to couple to the same Bloch mode. This extra degree of freedom is decisive when trying to optimize the transmission. We illustrate these ideas on a particular rectangular configuration which ensures a strong angular superprism effect, a well collimated transmitted beam, and power transmissions of up to 80%. © 2004 American Institute of Physics.
ACCESSION #
12530522

 

Related Articles

  • Accurate ab initio predictions of III–V direct-indirect band gap crossovers. Nicklas, Jeremy W.; Wilkins, John W. // Applied Physics Letters;8/30/2010, Vol. 97 Issue 9, p091902 

    We report the compositional dependence of the electronic band structure for a range of III–V alloys. Standard density functional theory is insufficient to mimic the electronic gap energies at different symmetry points of the Brillouin zone. The Heyd–Scuseria–Ernzerhof hybrid...

  • Implications of time-reversal symmetry for the band structure of single-wall carbon nanotubes. Goupalov, S. // JETP Letters;Oct2010, Vol. 92 Issue 8, p507 

    When electron states in carbon nanotubes are characterized by two-dimensional wave vectors with the components K and K along the nanotube circumference and cylindrical axis, respectively, then two such vectors symmetric about a M-point in the reciprocal space of graphene are shown to be related...

  • Lamb waves in phononic crystal slabs with square or rectangular symmetries. Brunet, Thomas; Vasseur, Jérôme; Bonello, Bernard; Djafari-Rouhani, Bahram; Hladky-Hennion, Anne-Christine // Journal of Applied Physics;Aug2008, Vol. 104 Issue 4, p043506 

    We report on both numerical and experimental results showing the occurrence of band gaps for Lamb waves propagating in phononic crystal plates. The structures are made of centered rectangular and square arrays of holes drilled in a silicon plate. A supercell plane wave expansion method is used...

  • Single-mode phonon transmission in symmetry-broken carbon nanotubes: Role of phonon symmetries. Wang, Jian; Wang, Jian-Sheng // Journal of Applied Physics;Mar2009, Vol. 105 Issue 6, p063509 

    We investigate the single-mode phonon transmission in symmetry-broken carbon nanotubes with the Stone-Wales defect using a mode-matching method. To gain an insight into the features of the transmission, the symmetry properties of phonons are analyzed within the line group symmetry theory for...

  • Study of the Raman spectra of phonons in disordered GaSb/AlSb (001) superlattices. Berdekas, D. // Canadian Journal of Physics;Sep2010, Vol. 88 Issue 9, p645 

    In the present work, we study the influence of disorder in the Raman spectra of the phonons of (GaSb)n/(AlSb)n (001) superlattices (SLs), for n = 1, 2. Τhe disordered superlattices are approximated with primitive cells that are much larger than the primitive cells of the corresponding perfect...

  • Sublattices and special features of phonon spectra in crystals with the InTe structure. Nikolaeva, E.; Poplavnoi, A.; Silinin, A. // Russian Physics Journal;Jan2011, Vol. 53 Issue 8, p769 

    The data on the approximated high-symmetry Bravais sublattices in crystals with the InTe structure are reported. The compatibility matrices are given for the derived combinations of crystal lattice and sublattices. The compatible Brillouin zones of the crystal and the sublattices are...

  • Temperature dependence of Raman scattering in Co-doped AlN whiskers. Jiang, L. B.; Li, H.; Zuo, S. B.; Bao, H. Q.; Wang, W. J.; Chen, X. L. // Applied Physics A: Materials Science & Processing;Aug2010, Vol. 100 Issue 2, p545 

    Raman studies are reported for the A1 (TO), E2 (high) and E1 (LO) phonons of Co-doped AlN whiskers from 78 K to 778 K. The temperature dependence of the Raman shifts and line widths of these phonons can be well described by an empirical model which takes into account the contribution of the...

  • Polaronic discontinuities induced by off-diagonal coupling. Zhang, Yuyu; Duan, Liwei; Chen, Qinghu; Zhao, Yang // Journal of Chemical Physics;7/21/2012, Vol. 137 Issue 3, p034108 

    In this paper, we study a form of the Holstein molecular crystal model in which the influence of lattice vibrations on the transfers of electronic excitations between neighboring sites (off-diagonal coupling) is taken into account. Using the Toyozawa Ansatz and the Lanczos algorithm, the...

  • Cylindrical coordinate representation for multiband Hamiltonians. Takhtamirov, Eduard // Journal of Applied Physics;Oct2012, Vol. 112 Issue 8, p084319 

    Rotationally invariant combinations of the Brillouin zone-center Bloch functions are used as basis function to express in cylindrical coordinates the valence-band and Kane envelope-function Hamiltonians for wurtzite and zinc-blende semiconductor heterostructures. For cylindrically symmetric...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics