Temperature control of laser action in scattering media

Author

Kijoon Lee ; Lawandy, N.M.

Author_Institution

Dept. of Phys., Brown Univ., Providence, RI, USA

fYear

2002

fDate

19-24 May 2002

Firstpage

2

Lastpage

3

Abstract

Summary form only given. Our system is comprised of hydroxypropyl cellulose (HPC) with a nominal average molecular weight of 370,000 dissolved in deionized water. HPC is a FDA-approved, nonionic, water-soluble cellulose derivative possessing lower critical soluble temperature (LCST) in water. When a laser dye with high gain is dissolved into this system, it makes a nice random laser system where scattering length and photon diffusivity can be temperature-controlled. We used Kiton Red 620 as laser dye and pumped with 7 ns-long 532 nm laser pulse.

Keywords

dye lasers; dyes; light scattering; optical pumping; solutions; thermo-optical effects; 532 nm; 7 ns; Kiton Red 620; cellulose derivative; critical soluble temperature; deionized water; high gain; hydroxypropyl cellulose; laser action; laser dye; macromolecule; nominal average molecular weight; photon diffusivity; random laser system; room temperature; scattering length; scattering media; temperature control; temperature-controlled; Dye lasers; Optical pumping; Optical scattering; Thermooptic effects;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest. Summaries of Papers Presented at the

Conference_Location

Long Beach, CA, USA

Print_ISBN

1-55752-708-3

Type

conf

DOI

10.1109/QELS.2002.1031004

Filename

1031004