 |
Bulgarian Journal of Physics
Print: 1310-0157 Online: 1314-2666
|
RECOGNIZED BY THE EUROPEAN PHYSICAL SOCIETY 
Bulg. J. Phys. vol.26 no.3-4 (1999), pp. 122-128
Laser Refractometer
Y. Sarov
Central Laboratory of Optical Storage and Processing of Information, Bulgarian Academy of Sciences, P.O. Box 95, 1113 Sofia, Bulgaria
go backCentral Laboratory of Optical Storage and Processing of Information, Bulgarian Academy of Sciences, P.O. Box 95, 1113 Sofia, Bulgaria
Abstract. The present paper proposes a new approximate equation for description of the refracted ray path in an optical system in the neighborhood of TIR. A new method for determining the refractive index of small volumes of liquids is proposed. The refractive index of distilled water and water solution of sucrose are determined. Sensibility of 1×10-4 is obtained experimentally. The concentration of water solution of sucrose is calculated with an error smaller than 0.1%.