Mach-Zehnder Interferometer Investigations on Some Laser Dye Solvents

• Authors: R. Ghazy
• Languages of publication: EN

Abstracts

EN

We have used a laser interferometric method to determine the refractive index of some laser dye solvents with a high accuracy of 5.8×10^{-4}. The determination of refractive index (n) has been done by counting the interference fringes (N) as a function of the incidence angle of the laser beam. The absolute refractive index of pure water, dimethylsulfoxide, and different mixtures of percentages (P) 25%, 50%, 75% of dimethylsulfoxide has been measured. The relation between the bulk refractive index (n_{m}) of these mixtures is plotted as a function of the investigated percentages. The temperature behavior of these refractive indices (dn_{m}/dt) was studied carefully within a temperature range of (20-80°C). We have found that both the refractive index (n_{m}) and temperature behavior of the refractive indices (dn_{m}/dt) of different mixtures of the investigated solvents have the average index properties of the parent solvents. Also, a fitted empirical relation between n_{m}, P, and t has been assumed as n_{m} =aP^{b}t_{c} with empirical constants a, b, and c. According to that equation we have recalculated n_{m} of these solvent mixtures and we have found satisfying agreement with the experimental results.

Keywords

EN

42.55.Mv; 78.20.Ci

Discipline

• 42.55.Mv: Dye lasers
• 78.20.Ci: Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1999
• Volume: 95
• Issue: 6
• Pages: 939-952

Dates

published

1999-06

received

1998-04-08

(unknown)

1998-10-16

(unknown)

1999-02-18

Contributors

author

R. Ghazy

• Laser Lab., Phys. Dept., Faculty of Sciences, Tanta University, Tanta, Egypt

Identifiers

DOI

10.12693/APhysPolA.95.939