Relaxation oscillations in long-pulsed random lasers

K.L. van der Molen; Allard Mosk; Aart Lagendijk

doi:10.1103/PhysRevA.80.055803

Relaxation oscillations in long-pulsed random lasers

K.L. van der Molen
, Allard Mosk
, Aart Lagendijk

Research output: Contribution to journal › Article › Academic › peer-review

3 Downloads (Pure)

Abstract

We have measured the evolution of the intensity emitted by a random laser during a pump pulse that is comparable in duration to the spontaneous emission decay time. The time traces of our random laser, consisting of titanium dioxide particles and sulforhodamine B dye, show clear relaxation oscillations. We compare our experimental results to an analytic, conventional model based on the four-level rate equations for a single-mode laser. The measured frequency of well-resolved fluctuation oscillations suggests an effective mode lifetime of 5 ps.

Original language	Undefined
Pages (from-to)	1-4
Number of pages	4
Journal	Physical review A: Atomic, molecular, and optical physics
Volume	80
Issue number	055803
DOIs	https://doi.org/10.1103/PhysRevA.80.055803
Publication status	Published - 2009

Keywords

IR-73209
METIS-261273

Access to Document

10.1103/PhysRevA.80.055803

Cite this

@article{32cbb736f05d4ef2aa24d3cea4054fd3,

title = "Relaxation oscillations in long-pulsed random lasers",

abstract = "We have measured the evolution of the intensity emitted by a random laser during a pump pulse that is comparable in duration to the spontaneous emission decay time. The time traces of our random laser, consisting of titanium dioxide particles and sulforhodamine B dye, show clear relaxation oscillations. We compare our experimental results to an analytic, conventional model based on the four-level rate equations for a single-mode laser. The measured frequency of well-resolved fluctuation oscillations suggests an effective mode lifetime of 5 ps.",

keywords = "IR-73209, METIS-261273",

author = "\{van der Molen\}, K.L. and Allard Mosk and Aart Lagendijk",

year = "2009",

doi = "10.1103/PhysRevA.80.055803",

language = "Undefined",

volume = "80",

pages = "1--4",

journal = "Physical review A: Atomic, molecular, and optical physics",

issn = "1050-2947",

publisher = "American Physical Society",

number = "055803",

}

TY - JOUR

T1 - Relaxation oscillations in long-pulsed random lasers

AU - van der Molen, K.L.

AU - Mosk, Allard

AU - Lagendijk, Aart

PY - 2009

Y1 - 2009

N2 - We have measured the evolution of the intensity emitted by a random laser during a pump pulse that is comparable in duration to the spontaneous emission decay time. The time traces of our random laser, consisting of titanium dioxide particles and sulforhodamine B dye, show clear relaxation oscillations. We compare our experimental results to an analytic, conventional model based on the four-level rate equations for a single-mode laser. The measured frequency of well-resolved fluctuation oscillations suggests an effective mode lifetime of 5 ps.

AB - We have measured the evolution of the intensity emitted by a random laser during a pump pulse that is comparable in duration to the spontaneous emission decay time. The time traces of our random laser, consisting of titanium dioxide particles and sulforhodamine B dye, show clear relaxation oscillations. We compare our experimental results to an analytic, conventional model based on the four-level rate equations for a single-mode laser. The measured frequency of well-resolved fluctuation oscillations suggests an effective mode lifetime of 5 ps.

KW - IR-73209

KW - METIS-261273

U2 - 10.1103/PhysRevA.80.055803

DO - 10.1103/PhysRevA.80.055803

M3 - Article

SN - 1050-2947

VL - 80

SP - 1

EP - 4

JO - Physical review A: Atomic, molecular, and optical physics

JF - Physical review A: Atomic, molecular, and optical physics

IS - 055803

ER -