Optical processes
... where α is the angle between the initial and final photon polarization. • The scattered photon direction is perpendicular to the new photon’s polarization in such a way that the final direction, initial and final polarization are all in one plane. • Rayleigh scattering attenuation coefficient is cal ...
... where α is the angle between the initial and final photon polarization. • The scattered photon direction is perpendicular to the new photon’s polarization in such a way that the final direction, initial and final polarization are all in one plane. • Rayleigh scattering attenuation coefficient is cal ...
10.3.2.1.1 Spectral apparatus An optical arrangement or an
... both dimensions, i.e., length and width in the same focal plane, it is called a stigmatic arrangement or when the focal planes are different in the two dimensions, astigmatic. When the radiation passes through the same optical components before and after being dispersed, the spectral system is autoc ...
... both dimensions, i.e., length and width in the same focal plane, it is called a stigmatic arrangement or when the focal planes are different in the two dimensions, astigmatic. When the radiation passes through the same optical components before and after being dispersed, the spectral system is autoc ...
Large Dispersive Effects near the Band Edges of Photonic Crystals
... 835 nm, with a repetition rate of 82 MHz. First, a doublepulsed signal is obtained with a Mach-Zehnder interferometer in which the reference arm is empty and the sample arm contains the sample. A sample area of 1 mm was illuminated at normal incidence. The power incident upon the sample was ⬃0.1 W, ...
... 835 nm, with a repetition rate of 82 MHz. First, a doublepulsed signal is obtained with a Mach-Zehnder interferometer in which the reference arm is empty and the sample arm contains the sample. A sample area of 1 mm was illuminated at normal incidence. The power incident upon the sample was ⬃0.1 W, ...
n 1n d
... The corresponding modulation of the coherent scattering length density b1 is two orders of magnitude larger than in the best PNR materials reported up to now!! b1 = (bN), due to phase separation of the constituent compounds (b) can be large even if (N) is relatively small !!! M. Fally, I. Dreve ...
... The corresponding modulation of the coherent scattering length density b1 is two orders of magnitude larger than in the best PNR materials reported up to now!! b1 = (bN), due to phase separation of the constituent compounds (b) can be large even if (N) is relatively small !!! M. Fally, I. Dreve ...
- Natural Sciences Publishing
... the optical absorption edge due to electron phonon or exciton- phonon interactions [17] was also determined taking T=300K from the relation kT . The values Et of σ for different GexSb40-x Se60 thin films are given in Table .1. It is noticed that the steepness parameter σ has the same trend as th ...
... the optical absorption edge due to electron phonon or exciton- phonon interactions [17] was also determined taking T=300K from the relation kT . The values Et of σ for different GexSb40-x Se60 thin films are given in Table .1. It is noticed that the steepness parameter σ has the same trend as th ...
Nonlinear Behavior and Damage of Dispersive Multilayer
... output of the Ti:Sph amplifier system yielding ∼ 40fs up-chirped pulses centered at 400nm. Exploitation of the programmable dispersive filter-DAZZLER (not pictured) -allows step-wise attenuation of the transmitted power without compromising temporal and spectral profile of the pulse. With implementa ...
... output of the Ti:Sph amplifier system yielding ∼ 40fs up-chirped pulses centered at 400nm. Exploitation of the programmable dispersive filter-DAZZLER (not pictured) -allows step-wise attenuation of the transmitted power without compromising temporal and spectral profile of the pulse. With implementa ...
The Analysis of Liquid Crystal Phases using Polarized Optical
... the non-plarized white light are splitted into two ray as it passes through the prism. The one travels out of the prism is called ordinary ray, and the other one is called extraordinary ray. So if we have a birefringent specimen located between the polarizer and analyzer, the initial light will be s ...
... the non-plarized white light are splitted into two ray as it passes through the prism. The one travels out of the prism is called ordinary ray, and the other one is called extraordinary ray. So if we have a birefringent specimen located between the polarizer and analyzer, the initial light will be s ...
H. F. Ghaemi - Department of Physics | Oregon State
... We identify the transmission minima as the result of Wood’s anomaly,11 which was observed in diffraction gratings and occurs when a diffracted order becomes tangent to the plane of the grating. When the order disappears, the light intensity is redistributed among the remaining orders; it has been su ...
... We identify the transmission minima as the result of Wood’s anomaly,11 which was observed in diffraction gratings and occurs when a diffracted order becomes tangent to the plane of the grating. When the order disappears, the light intensity is redistributed among the remaining orders; it has been su ...
Whispering gallery modes of microspheres in the presence of a
... WGMs are not sensitive enough to refractive index changes in the case of gas media. However, they can be sufficiently sensitive for measurements in liquids. Experiments were carried out to validate the analysis and to provide an assessment of this sensor concept. © 2010 American Institute of Physics ...
... WGMs are not sensitive enough to refractive index changes in the case of gas media. However, they can be sufficiently sensitive for measurements in liquids. Experiments were carried out to validate the analysis and to provide an assessment of this sensor concept. © 2010 American Institute of Physics ...
Dispersion staining
The optical properties of all liquid and solid materials change as a function of the wavelength of light used to measure them. This change as a function of wavelength is called the dispersion of the optical properties. The graph created by plotting the optical property of interest by the wavelength at which it is measured is called a dispersion curve.The dispersion staining is an analytical technique used in light microscopy that takes advantage of the differences in the dispersion curve of the refractive index of an unknown material relative to a standard material with a known dispersion curve to identify or characterize that unknown material. These differences become manifest as a color when the two dispersion curves intersect for some visible wavelength. This is an optical staining technique and requires no stains or dyes to produce the color. Its primary use today is in the conformation of the presence of asbestos in construction materials but it has many other applications.