Title :
Viscosity dependence of optical limiting in carbon-black suspensions
Author :
Hernandez, F.E. ; Mendonca, C.R. ; Cohanoschi, I. ; Shensky, W. ; Hagan, David J. ; Van Stryland, Eric W.
Author_Institution :
Center for Res. & Educ. in Opt. & Lasers, Univ. of Central Florida, Orlando, FL, USA
Abstract :
Summary form only given. We report the optical limiting behavior of carbon black suspensions (CBS) in solvents of varying viscosity using a pulsed laser. The experiments were performed using a frequency-doubled, Q-switched, 5 ns (FWHM), Nd-YAG laser, operating at 10 Hz or single-shot repetition rate. Samples were prepared by mixing amorphous carbon particles with different host solvents, and placed in a 1 cm length cell. The particle hydrodynamic diameter was 155 /spl mu/m. The results show how CBS may be applied to optical limiting of high repetition rate lasers, by using low viscosity solvents and small carbon particles.
Keywords :
carbon; optical limiters; optical materials; particle size; suspensions; viscosity; 155 micron; C; C black suspensions; frequency-doubled Q-switched Nd-YAG laser; high repetition rate lasers; low viscosity solvents; optical limiting; particle hydrodynamic diameter; pulsed laser; small carbon particles; varying viscosity solvents; viscosity dependence; Nonlinear optics; Optical attenuators; Optical devices; Optical mixing; Optical pulses; Optical scattering; Solvents; Stimulated emission; Suspensions; Viscosity;
Conference_Titel :
Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
1-55752-706-7
DOI :
10.1109/CLEO.2002.1034339
