Active materials embedded in photonic crystals and coupled to electromagnetic radiation

被引：47

作者：

Bermel, P ^{[1
]}

Lidorikis, E ^{[1
]}

Fink, Y ^{[1
]}

Joannopoulos, JD ^{[1
]}

机构：

[1] MIT, Ctr Mat Sci & Engn, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW B | 2006年 / 73卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.73.165125

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A calculational scheme is presented to model the interaction of light with active dielectric media, represented by four-level atomic materials, surrounded by photonic crystals. Optically pumped lasing is studied in three model systems: a Fabry-Perot cavity, a line of defects in a two-dimensional square lattice of rods, and a cylindrical photonic crystal. Field profiles and conversion efficiencies are calculated for these systems. It is shown that high conversion efficiency can be achieved for large regions of active material in the cavity, as well as for a single fluorescent atom in a hollow-core cylindrical photonic crystal, suggesting designs for ultralow-threshold lasers and ultrasensitive biological sensors.

引用

页数：8

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