Pump-Controlled Directional Light Emission from Random Lasers

被引：105

作者：

Hisch, Thomas ^{[1
]}

Liertzer, Matthias ^{[1
]}

Pogany, Dionyz ^{[2
]}

Mintert, Florian ^{[3
]}

Rotter, Stefan ^{[1
]}

机构：

[1] Vienna Univ Technol, Inst Theoret Phys, A-1040 Vienna, Austria

[2] Vienna Univ Technol, Inst Solid State Elect, A-1040 Vienna, Austria

[3] Albert Ludwigs Univ Freiburg, Freiburg Inst Adv Studies, D-79104 Freiburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 02期

基金：

欧洲研究理事会; 奥地利科学基金会;

关键词：

GLOBAL OPTIMIZATION METHODS; TUNABLE RANDOM LASER; SCATTERING MEDIA; RESONATORS; TRANSPORT; MODES;

D O I：

10.1103/PhysRevLett.111.023902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The angular emission pattern of a random laser is typically very irregular and difficult to tune. Here we show by detailed numerical calculations that one can overcome the lack of control over this emission pattern by actively shaping the spatial pump distribution. We demonstrate, in particular, how to obtain customized pump profiles to achieve highly directional emission. Going beyond the regime of strongly scattering media where localized modes with a given directionality can simply be selected by the pump, we present an optimization-based approach which shapes extended lasing modes in the weakly scattering regime according to any predetermined emission pattern.

引用

页数：5

共 57 条

[1]

Akkermans E., 2007, MESOSCOPIC PHYS ELEC

[2] Control random laser modes by local pumping [J].

Andreasen, Jonathan ;

Vanneste, Christian ;

Ge, Li ;

Cao, Hui .

PHYSICS AND SIMULATION OF OPTOELECTRONIC DEVICES XVIII, 2010, 7597

[3]

[Anonymous], The nlopt nonlinear-optimization package

[4] Control of Light Transmission through Opaque Scattering Media in Space and Time [J].

Aulbach, Jochen ;

Gjonaj, Bergin ;

Johnson, Patrick M. ;

Mosk, Allard P. ;

Lagendijk, Ad .

PHYSICAL REVIEW LETTERS, 2011, 106 (10)

[5] Taming Random Lasers through Active Spatial Control of the Pump [J].

Bachelard, N. ;

Andreasen, J. ;

Gigan, S. ;

Sebbah, P. .

PHYSICAL REVIEW LETTERS, 2012, 109 (03)

[6]

Bachelard N., ARXIV13031398

[7] Single mode emission and non-stochastic laser system based on disordered point-sized structures: toward a tuneable random laser [J].

Bardoux, R. ;

Kaneta, A. ;

Funato, M. ;

Okamoto, K. ;

Kawakami, Y. ;

Kikuchi, A. ;

Kishino, K. .

OPTICS EXPRESS, 2011, 19 (10) :9262-9268

[8] A Levy flight for light [J].

Barthelemy, Pierre ;

Bertolotti, Jacopo ;

Wiersma, Diederik S. .

NATURE, 2008, 453 (7194) :495-498

[9]

Baudouin Q, 2013, NAT PHYS, V9, P357, DOI [10.1038/nphys2614, 10.1038/NPHYS2614]

[10] Lasing with resonant feedback in random media [J].

Cao, H ;

Ling, Y ;

Xu, JY ;

Burin, AL ;

Chang, RPH .

PHYSICA B-CONDENSED MATTER, 2003, 338 (1-4) :215-218

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