Photonic band-gap properties of opaline lattices of spherical colloids doped with various concentrations of smaller colloids

被引:60
作者
Gates, B [1 ]
Xia, YN [1 ]
机构
[1] Univ Washington, Dept Chem, Seattle, WA 98195 USA
关键词
D O I
10.1063/1.1374229
中图分类号
O59 [应用物理学];
学科分类号
摘要
Monodispersed polystyrene beads have been organized into highly ordered, three-dimensional (3D) lattices using a self-assembly procedure recently demonstrated by our group. Such a 3D periodic structure consisting of high and low dielectric regions exhibits a pseudo-band gap (or a stop band) in the optical regime, with the position of this gap mainly determined by the size of the polymer beads. Doping of this 3D crystalline lattice with polymer beads of a smaller size was found to have a profound influence on the order (and thus the photonic band-gap properties) of the lattice. When the concentration of the dopant reached a certain level, phase segregation occurred which led to the formation of samples with relatively smaller domain sizes. In accordance, the attenuation (or rejection ratio) of the stop band also decreased monotonically as the doping level was increased. (C) 2001 American Institute of Physics.
引用
收藏
页码:3178 / 3180
页数:3
相关论文
共 28 条
[1]   Photonic band engineering through tailored microstructural order [J].
Ballato, J ;
Dimaio, J ;
James, A ;
Gulliver, E .
APPLIED PHYSICS LETTERS, 1999, 75 (11) :1497-1499
[2]   FREEZING OF BINARY-MIXTURES OF COLLOIDAL HARD-SPHERES [J].
BARTLETT, P ;
OTTEWILL, RH ;
PUSEY, PN .
JOURNAL OF CHEMICAL PHYSICS, 1990, 93 (02) :1299-1312
[3]   Large-scale synthesis of a silicon photonic crystal with a complete three-dimensional bandgap near 1.5 micrometres [J].
Blanco, A ;
Chomski, E ;
Grabtchak, S ;
Ibisate, M ;
John, S ;
Leonard, SW ;
Lopez, C ;
Meseguer, F ;
Miguez, H ;
Mondia, JP ;
Ozin, GA ;
Toader, O ;
van Driel, HM .
NATURE, 2000, 405 (6785) :437-440
[4]   Defects and diffraction in photonic crystals [J].
Cassagne, D ;
Barra, A ;
Jouanin, C .
SUPERLATTICES AND MICROSTRUCTURES, 1999, 25 (1-2) :343-346
[5]   Self-assembly of colloidal crystals [J].
Dinsmore, AD ;
Crocker, JC ;
Yodh, AG .
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 1998, 3 (01) :5-11
[6]   PHASE-DIAGRAMS OF NEARLY HARD-SPHERE BINARY COLLOIDS [J].
DINSMORE, AD ;
YODH, AG ;
PINE, DJ .
PHYSICAL REVIEW E, 1995, 52 (04) :4045-4057
[7]   Polymerized colloidal crystal hydrogel films as intelligent chemical sensing materials [J].
Holtz, JH ;
Asher, SA .
NATURE, 1997, 389 (6653) :829-832
[8]   Single-crystal colloidal multilayers of controlled thickness [J].
Jiang, P ;
Bertone, JF ;
Hwang, KS ;
Colvin, VL .
CHEMISTRY OF MATERIALS, 1999, 11 (08) :2132-2140
[9]   Photonic crystals: Putting a new twist on light [J].
Joannopoulos, JD ;
Villeneuve, PR ;
Fan, SH .
NATURE, 1997, 386 (6621) :143-149
[10]   A three-dimensional photonic crystal operating at infrared wavelengths [J].
Lin, SY ;
Fleming, JG ;
Hetherington, DL ;
Smith, BK ;
Biswas, R ;
Ho, KM ;
Sigalas, MM ;
Zubrzycki, W ;
Kurtz, SR ;
Bur, J .
NATURE, 1998, 394 (6690) :251-253