Directional Laser Emission from a Wavelength-Scale Chaotic Microcavity

被引：127

作者：

Song, Q. H. ^{[1
]}

Ge, L. ^{[1
]}

Stone, A. D. ^{[1
]}

Cao, H. ^{[1
]}

Wiersig, J. ^{[2
]}

Shim, J-B ^{[2
]}

Unterhinninghofen, J. ^{[2
]}

Fang, W. ^{[3
,4
]}

Solomon, G. S. ^{[3
,4
]}

机构：

[1] Yale Univ, Dept Appl Phys, New Haven, CT 06520 USA

[2] Univ Magdeburg, Inst Theoret Phys, D-39016 Magdeburg, Germany

[3] NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA

[4] Univ Maryland, Gaithersburg, MD 20899 USA

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.105.103902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate directional output from a deformed disk laser of dimensions comparable to the emission wavelength. Unlike larger deformed cavity lasers, which exhibit universal output directionality determined by chaotic ray dynamics, the far-field patterns differ between lasing modes. The directional emission results from weak coupling of isotropic high-quality modes to anisotropic low-quality modes, combined with chiral symmetry breaking of clockwise and counterclockwise propagating waves. This mechanism makes it possible to control the output properties of wavelength-scale lasers.

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页数：4

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