Title :
Accurate sizing of an extremely small quantity of Brownian particles in water with a laser-diode-pumped self-mixing thin-slice Nd:GdVO4 laser
Author :
Nemoto, Kana ; Miyasaka, Yoshihiko ; Kamikariya, Koji ; Sudo, Seiichi ; Otsuka, Kenju
Author_Institution :
Dept. of Phys., Tokai Univ., Hiratsuka
Abstract :
Quick and accurate sizing of particles 100-500 nm in diameter undergoing Brownian motions with concentration below 1 ppm in water has been successfully demonstrated using a self-mixing thin-slice Nd:GdVO4 laser with laser-diode pumping. A lower concentration limit as low as 0.05 ppm was achieved for 262-nm polystyrene latex spheres.
Keywords :
Brownian motion; gadolinium compounds; measurement by laser beam; neodymium; optical pumping; particle size measurement; polymers; solid lasers; Brownian motion; Brownian particles; laser-diode pumping; polystyrene latex spheres; self-mixing thin-slice laser; size 100 nm to 500 nm; size 262 nm; Frequency; Laser beams; Laser excitation; Laser theory; Light scattering; Optical scattering; Particle measurements; Particle scattering; Pump lasers; Solid lasers;
Conference_Titel :
Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-1173-3
Electronic_ISBN :
978-1-4244-1174-0
DOI :
10.1109/CLEOPR.2007.4391116
