Spatial confinement of laser light in active random media

被引：644

作者：

Cao, H ^{[1
]}

Xu, JY

Zhang, DZ

Chang, SH

Ho, ST

Seelig, EW

Liu, X

Chang, RPH

机构：

[1] Northwestern Univ, Mat Res Ctr, Dept Phys & Astron, Evanston, IL 60208 USA

[2] Northwestern Univ, Mat Res Ctr, Dept Elect & Comp Engn, Evanston, IL 60208 USA

[3] Northwestern Univ, Mat Res Ctr, Dept Mat Sci & Engn, Evanston, IL 60208 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.84.5584

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have observed spatial confinement of laser light in micrometer-sized random media. The optical confinement is attributed to the disorder-induced scattering and interference. Our experimental data suggest that coherent amplification of the scattered light enhances the interference effect and helps the spatial confinement. Using the finite-difference time-domain method, we simulate lasing with coherent feedback in the active random medium.

引用

页码：5584 / 5587

页数：4

共 20 条

[1] SCALING THEORY OF LOCALIZATION - ABSENCE OF QUANTUM DIFFUSION IN 2 DIMENSIONS [J].

ABRAHAMS, E ;

ANDERSON, PW ;

LICCIARDELLO, DC ;

RAMAKRISHNAN, TV .

PHYSICAL REVIEW LETTERS, 1979, 42 (10) :673-676

[2] Theory of laser action in scattering gain media [J].

Balachandran, RM ;

Lawandy, NM ;

Moon, JA .

OPTICS LETTERS, 1997, 22 (05) :319-321

[3] Dynamics of stimulated emission from random media [J].

Berger, GA ;

Kempe, M ;

Genack, AZ .

PHYSICAL REVIEW E, 1997, 56 (05) :6118-6122

[4] Random laser action in semiconductor powder [J].

Cao, H ;

Zhao, YG ;

Ho, ST ;

Seelig, EW ;

Wang, QH ;

Chang, RPH .

PHYSICAL REVIEW LETTERS, 1999, 82 (11) :2278-2281

[5] MICROWAVE LOCALIZATION BY 2-DIMENSIONAL RANDOM SCATTERING [J].

DALICHAOUCH, R ;

ARMSTRONG, JP ;

SCHULTZ, S ;

PLATZMAN, PM ;

MCCALL, SL .

NATURE, 1991, 354 (6348) :53-55

[6] OBSERVATION OF PHOTON LOCALIZATION IN A 3-DIMENSIONAL DISORDERED SYSTEM [J].

GENACK, AZ ;

GARCIA, N .

PHYSICAL REVIEW LETTERS, 1991, 66 (16) :2064-2067

[7] Subpicosecond electrodynamics of distributed Bragg reflector microlasers: Results from finite difference time domain simulations [J].

Hagness, SC ;

Joseph, RM ;

Taflove, A .

RADIO SCIENCE, 1996, 31 (04) :931-941

[8] SUBMICROMETER ZINC-OXIDE PARTICLES - ELABORATION IN POLYOL MEDIUM AND MORPHOLOGICAL-CHARACTERISTICS [J].

JEZEQUEL, D ;

GUENOT, J ;

JOUINI, N ;

FIEVET, F .

JOURNAL OF MATERIALS RESEARCH, 1995, 10 (01) :77-83

[9] LOCALIZATION OF LIGHT [J].

JOHN, S .

PHYSICS TODAY, 1991, 44 (05) :32-40

[10] Theory of lasing in a multiple-scattering medium [J].

John, S ;

Pang, G .

PHYSICAL REVIEW A, 1996, 54 (04) :3642-3652

← 1 2 →