Research Directions
... Zeeman shifts lead to a difference between the resonance frequencies for the two circular polarizations. This displaces the dispersion curves for the two polarizations. A characteristic width of these dispersion curves, G, corresponds to the spectral width of an absorption line, which under typical ...
... Zeeman shifts lead to a difference between the resonance frequencies for the two circular polarizations. This displaces the dispersion curves for the two polarizations. A characteristic width of these dispersion curves, G, corresponds to the spectral width of an absorption line, which under typical ...
Modes Effective Refractive Index Difference Measurement
... modes at their resonance wavelengths can be obtained. However, it can’t provide a full view of the modes effective refractive indices across the wavelengths. The interferometer configuration was used to measure the index difference in few-mode optical fibers by some researchers [2][3]. The mode inte ...
... modes at their resonance wavelengths can be obtained. However, it can’t provide a full view of the modes effective refractive indices across the wavelengths. The interferometer configuration was used to measure the index difference in few-mode optical fibers by some researchers [2][3]. The mode inte ...
NON-LINEAR MATERIALS Definition
... It is, now-a-days, possible to fabricate fibres which amplify the light signal propagating through it. They are called fibre amplifiers. By pumping the atoms inside the fibre by sending a pump beam, population inversion is created in the fibre core. When the signal pulse is sent amplification takes ...
... It is, now-a-days, possible to fabricate fibres which amplify the light signal propagating through it. They are called fibre amplifiers. By pumping the atoms inside the fibre by sending a pump beam, population inversion is created in the fibre core. When the signal pulse is sent amplification takes ...
Photon mapping of individual Ag particles on MgO/Mo(001)
... [Fig. 4(b), right]. The same effect occurs at higher excitation bias, as the associated increase in the tip-sample distance also enlarges the inclination of the electron beam against the surface. The out-of-plane plasmon, on the other hand, is best visible above the particle center, when the tip ele ...
... [Fig. 4(b), right]. The same effect occurs at higher excitation bias, as the associated increase in the tip-sample distance also enlarges the inclination of the electron beam against the surface. The out-of-plane plasmon, on the other hand, is best visible above the particle center, when the tip ele ...
Planoconcave lens by negative refraction of stacked subwavelength
... Since the first experimental confirmation by Smith’s group [3] of a NRI medium at microwaves using arrays of metallic wires to get negative dielectric permittivity [4], mixed with arrays of split rings resonators (SRRs) to obtain negative magnetic permeability [5], several attempts have been done to ...
... Since the first experimental confirmation by Smith’s group [3] of a NRI medium at microwaves using arrays of metallic wires to get negative dielectric permittivity [4], mixed with arrays of split rings resonators (SRRs) to obtain negative magnetic permeability [5], several attempts have been done to ...
wavelength dependence of the light-induced index
... drop toward long wavelengths of the index change predicted by models based on Sellmeier's dispersion formula. The dissimilar-fiber Mach-Zehnder interferometer described in this Letter may also have application in the investigation of the effects of ionizing radiation, such as gamma rays and neutrons ...
... drop toward long wavelengths of the index change predicted by models based on Sellmeier's dispersion formula. The dissimilar-fiber Mach-Zehnder interferometer described in this Letter may also have application in the investigation of the effects of ionizing radiation, such as gamma rays and neutrons ...
Acousto-Optic Modulators
... Consider two coherent optical waves A and B being reflected from two adjacent acoustic wave fronts to become A1 and B1. These reflected waves can only constitute the diffracted beam if they are in phase. The angle q is exaggerated (typically, this is a few degrees). ...
... Consider two coherent optical waves A and B being reflected from two adjacent acoustic wave fronts to become A1 and B1. These reflected waves can only constitute the diffracted beam if they are in phase. The angle q is exaggerated (typically, this is a few degrees). ...
EEE440 Modern Communication Systems Optical Fibre
... They lose some of their energy into heat and results in an attenuated output signal. The bouncing rays and the lowest order mode, traveling down the center axis, are all traversing paths of different lengths from input to output. Consequently, they do not all reach the right end of the fiber optic c ...
... They lose some of their energy into heat and results in an attenuated output signal. The bouncing rays and the lowest order mode, traveling down the center axis, are all traversing paths of different lengths from input to output. Consequently, they do not all reach the right end of the fiber optic c ...
Electrically Excited Inverse Electron Spin Resonance in a Split
... Downsizing of metamaterials is very important to practical realization of metamaterials. THz metamaterial We can fabricate metamaterials easily by existing methods (ex. lithography). ...
... Downsizing of metamaterials is very important to practical realization of metamaterials. THz metamaterial We can fabricate metamaterials easily by existing methods (ex. lithography). ...
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.