Measurement of Birefringence, Dispersion and Line Splitting for Biaxial Crystals by Double-layer Interferometer

Khashan, Mahmoud A.; Nassif, A.Y

doi:10.1080/09500348914550851

Cited by 10 publications

(2 citation statements)

References 4 publications

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“…The refractive index of the transmitting medium is an important factor in the distance/phase relationship function. In contrast to the well-known real and imaginary refractive index components of metals (e.g., gold), those of dielectrics (e.g., mica) are less well defined and where published, typically relate only to real components and the visible region of the spectrum. − However, from the work of El-Zaiat, the refractive index averages used here of n 2,VIS = 1.60 and n 2,SF = 1.63 were derived. Singleton and Shirkey measured both real and imaginary refractive index components of mica between 400 and 1200 cm -1 .…”

Section: Calculation Detailsmentioning

confidence: 99%

Interference Effects in Sum Frequency Spectra from Monolayers on Composite Dielectric/Metal Substrates

et al. 2002

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A theoretical model has been developed to describe the generation of Sum Frequency (SF) light from a monolayer film adsorbed to the surface of a dielectric and metal composite substrate. This type of substrate provides enhanced SF signals from the monolayer without modifying the intrinsic (hydrophilic) properties of the dielectric surface. The fundamental equations of both resonant and nonresonant SF generation have been extended from a single interface to encompass the two displaced sources, the air/dielectric interface at which the monolayer film is located, and the dielectric/metal interface. The model describes the coherent addition of three separate SF signals which coherently interfere with each other, thereby affecting the line-shape observed in the net SF spectrum. Representative calculations have been made for a highly ordered monolayer of an aliphatic hydrocarbon molecule, adsorbed on a dielectric with the optical properties of mica, which is itself in contact with a metal modeled to resemble gold. The SF spectral line-shapes are predicted as a function of the thickness of the dielectric material for the methyl terminal groups of the hydrocarbon chain. The model can be applied to any dielectric/metal composite by modifying the optical properties appropriately.

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Section: Calculation Detailsmentioning

confidence: 99%

Interference Effects in Sum Frequency Spectra from Monolayers on Composite Dielectric/Metal Substrates

et al. 2002

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“…The solvent refractive index has been determined with a high degree of accuracy 5.8 x 10 -4 . By counting the number of the interference fringes N produced as a function of the incidence angle of the expanded laser beam, one can determine the refractive index n of the given sample by the graphical representation [5] of the following relation:…”

Section: Experimental Methodsmentioning

confidence: 99%

Mach-Zehnder Interferometer Investigations on Some Laser Dye Solvents

Ghazy

1999

Acta Phys. Pol. A

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We have used a laser interferometric method to determine the refractive index of some laser dye solvents with a high accuracy of 5.8 x 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 (nm) 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.) and temperature behavior of the refractive indices (dnm/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 = a Pb t c w i t h e m p i r i c a l constants a, b, and c. According to that equation we have recalculated of these solvent mixtures and we have found satisfying agreement with the experimental results.

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Hybrid titanium dioxide/sericite light scattering layer to enhance light harvesting of dye-sensitized solar cells

Chen

Sil

Lee

et al. 2021

Electrochimica Acta

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Measurement of Birefringence, Dispersion and Line Splitting for Biaxial Crystals by Double-layer Interferometer

Cited by 10 publications

References 4 publications

Interference Effects in Sum Frequency Spectra from Monolayers on Composite Dielectric/Metal Substrates

Interference Effects in Sum Frequency Spectra from Monolayers on Composite Dielectric/Metal Substrates

Mach-Zehnder Interferometer Investigations on Some Laser Dye Solvents

Hybrid titanium dioxide/sericite light scattering layer to enhance light harvesting of dye-sensitized solar cells

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