Mach-Zehnder Interferometer Investigations on Some Laser Dye Solvents

Ghazy, R.

doi:10.12693/aphyspola.95.939

Cited by 6 publications

(2 citation statements)

References 6 publications

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“…The experimental arrangement of Mach Zehnder Interferometer (MZI), which is used to determine the refractive index of benzene as a non-polar solvent and its dependence with temperature, is explained in details in my literature [5] .…”

Section: Methodsmentioning

confidence: 99%

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Study of the Optical and Physical Roles of a Dielectric Laser Dye Solvent Which Affects on the Dye Laser Operation

Ghazy¹

2005

American J. of Applied Sciences

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Abstract:It is well known that when the pump laser beam incidence on the laser dye liquid it will be absorbed. This absorption tends to heat the laser active medium, which is the laser dye solution. In view of this the correlated property of that active medium well change tends to shift the operated frequency and wavelength. Therefore, one of most interested dielectric, nonpolar, laser dye solvent was selected for this investigation, which is Benzene. A laser interferometer known as Mach Zhender Interferometer (MZI) is constructed and used to measure the refractive index of the investigated solvent by counting the interfering fringes as a function of the angle of incidence of the incident laser beam. The temperature of that solvent is raised within the range 293-373 K by using a constructed heating system. The thermal behavior of the refractive index of Benzene is studied to estimate the thermo-optical coefficient of the refractive index, which is important to know the state convergence or divergence of the pump laser beam within the laser dye medium. Also, the dielectric constant of the dye solution is an important parameter for the laser operation. Therefore the dielectric constant and its thermal behavior of Benzene are calculated through the Maxwell's relation to determine the thermal coefficient of the dielectric constant. The value of the number density which is equal the specific polarizability of the investigated solvent is estimated by using the obtained values of the refractive index and its variation with the temperature is studied too. Because the dependence of the mean polarizability of the dielectric constant through the Clausius-Mossotti relation the values of both mean polarizability and its thermal behavior are studied. In addition, since the molecular polarizability depends on the mean polarizability the value of it is determined. By using the values of mean polarizability the molecule radius is determined and using the Clausius-Mossotti relation the actual volume occupied by all molecules per unit volume are estimated. The volume expansion, through Murphy and Albert equation is calculated.

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Section: Methodsmentioning

confidence: 99%

“…The refractive index n of Benzene laser dye solvent is measured by the method described by Ghazy [5] . It was noted that the values of n at the different temperature values are evaluated.…”

Section: Refractive Index (N)mentioning

confidence: 99%

Study of the Optical and Physical Roles of a Dielectric Laser Dye Solvent Which Affects on the Dye Laser Operation

Ghazy¹

2005

American J. of Applied Sciences

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RETRACTED ARTICLE: Optical, photo-physical and photo-stability characterizations of malachite green as a laser dye, combined with TD-DFT simulations

Ghazy,

Abotalb,

Kenawy

et al. 2024

Opt Quant Electron

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The optical properties of Malachite green (Mg) dye were examined experimentally, including absorption, optical energy gab, refractive index, dielectric constant, optical conductivity and emission spectra in various solvents. Additionally, several significant photophysical parameters were evaluated, including the extinction coefficient (ε), the energy yield of fluorescence (Ef), the length of attenuation Λ (λ), oscillator strength (f), quantum yield (Øf), fluorescence lifetime ($${\uptau }_{{\text{f}}}$$ τ f ), decay rate radiative constant (kr), and the dipole moment (μ) in addition to absorption and emission cross-sections (σa) and (σe) respectively. Time Dependent Density function theory (TD-DFT) computations were used to generate the theoretical absorption spectra of the (Mg) compound. The energy gap (Eg), electron density, and electrostatic potential were also simulated.

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Experimental studies on static laser light scattering of synthetized poly (acrylonitrile-co- methyl methacrylate) copolymer at room temperature

Shaheen

Ghazy

Kenawy

et al. 2020

Optik

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Mach-Zehnder Interferometer Investigations on Some Laser Dye Solvents

Cited by 6 publications

References 6 publications

Study of the Optical and Physical Roles of a Dielectric Laser Dye Solvent Which Affects on the Dye Laser Operation

Study of the Optical and Physical Roles of a Dielectric Laser Dye Solvent Which Affects on the Dye Laser Operation

RETRACTED ARTICLE: Optical, photo-physical and photo-stability characterizations of malachite green as a laser dye, combined with TD-DFT simulations

Experimental studies on static laser light scattering of synthetized poly (acrylonitrile-co- methyl methacrylate) copolymer at room temperature

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