Exact calculation of local density of states in three-dimensional photonic crystals

Author

Gu, Ben-Yuan ; Wang, Rongzhou ; Wang, Xue-Hua

Author_Institution

Inst. of Phys., Chinese Acad. of Sci., Beijing, China

Volume

2

fYear

2003

fDate

15-19 Dec. 2003

Abstract

This paper presents the exact calculation of local density of states in three-dimensional photonic crystals (PCs). Theoretically, the local density of states (LDOS), the so-called generalized LDOS (GLDOS), and the local coupling strength (LCS) have been numerically evaluated, and it is found that these quantities play an extremely important role in quantum electrodynamics of atomic spontaneous emission in PCs. Based from a transform relation derived, a correct expression of calculating the LDOS is presented which satisfies the symmetry of the lattice. The enhancement effect of the LDOS in the PC´s with a diamond structure, compared to the vacuum case is revealed.

Keywords

Brillouin zones; crystal symmetry; electronic density of states; photonic crystals; Brillouin zone; atomic spontaneous emission; diamond structure; exact calculation; lattice symmetry; local coupling strength; local density of states; quantum electrodynamics; three-dimensional photonic crystals; Electromagnetic fields; Equations; Fluctuations; Frequency; Lattices; Photonic band gap; Photonic crystals; Physics; Spontaneous emission; Transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2003. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on

Print_ISBN

0-7803-7766-4

Type

conf

DOI

10.1109/CLEOPR.2003.1277151

Filename

1277151