Title :
Photonic band gaps of two-dimensional trigonal photonic crystals fabricated by four umbrellalike beam interference technique
Author :
Yang, X.L. ; Cai, L.Z. ; Liu, Q.
Author_Institution :
Dept. of Opt., Shandong Univ., Jinan, China
Abstract :
The photonic band gap (PBG) properties of a class of two-dimensional (2-D) trigonal structures fabricated by holographic lithography are investigated. The effect of intensity threshold on the filling ratio, the shape of "atoms", and then the photonic gap is comprehensively studied. Our results show that the PBG of 2-D titania arrays open only for TE polarization, and directional PBG can be obtained for TE and TM polarization simultaneously. And the symmetry reduction of "atom" introduced by holographic lithography technique can yield an absolute PBG for the dielectric "atoms" in air.
Keywords :
holography; light interference; optical fabrication; photolithography; photonic band gap; photonic crystals; 2-D titania arrays; TE polarization; TM polarization; dielectric atoms; four umbrellalike beam interference; holographic lithography; intensity threshold; photonic band gaps; symmetry reduction; two-dimensional trigonal photonic crystals; Filling; Holography; Interference; Lithography; Photonic band gap; Photonic crystals; Polarization; Shape; Tellurium; Two dimensional displays;
Conference_Titel :
Lasers and Electro-Optics, 2003. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on
Print_ISBN :
0-7803-7766-4
DOI :
10.1109/CLEOPR.2003.1277005
