Wide-spectral-range laser refractometer.
We present refractometric measurements made in the 266-1064-nm spectral region with a pulsed Nd:YAG laser, and the second, third, and fourth harmonics of the laser's fundamental wavelength. The critical angle is determined by the disappearance of the diffraction orders from a metal grating, forming a microcuvette with the prism's reflecting wall. A fused-silica measuring prism is used in the experiments.
Central Laboratory of Optical Storage and Processing of Information, Bulgarian Academy of Sciences, 101 Akad. G. Bonchev Str. P.O. Box 95, Sofia 1113, Bulgaria.
Simeon
S
Sainov
Yanko
Y
Sarov
Stoyan
S
Kurtev