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... core. Self-phase modulation can lead to substantial spectral broadening of pulsed light propagating along an optical fiber. When a pulse of light experiences normal GVD (i.e., D , 0) as it propagates, the longer-wavelength components travel faster than the shorter-wavelength components. Anomalous GV ...
... core. Self-phase modulation can lead to substantial spectral broadening of pulsed light propagating along an optical fiber. When a pulse of light experiences normal GVD (i.e., D , 0) as it propagates, the longer-wavelength components travel faster than the shorter-wavelength components. Anomalous GV ...
Free Space Optical communication
... through a wireless medium using modulated near infrared light beam (with wavelength between 800 nm-1700 nm) [1] as carrier wave. FSO communication links can be used for satellite-to-satellite cross links [2] [3], up-and-down links between space platforms- aircraft, ships, and other ground platforms, ...
... through a wireless medium using modulated near infrared light beam (with wavelength between 800 nm-1700 nm) [1] as carrier wave. FSO communication links can be used for satellite-to-satellite cross links [2] [3], up-and-down links between space platforms- aircraft, ships, and other ground platforms, ...
ller cells separate between wavelengths to
... uneven boundaries and undulations of the cells. (3) We also added random perturbations to the cell’s refractive indices and its extracellular vicinity26, on a scale of 1 mm and 5–15% of the local refractive index difference between the cell and its surrounding (see Methods). The results of the simul ...
... uneven boundaries and undulations of the cells. (3) We also added random perturbations to the cell’s refractive indices and its extracellular vicinity26, on a scale of 1 mm and 5–15% of the local refractive index difference between the cell and its surrounding (see Methods). The results of the simul ...
Fast Light, Slow Light and Optical Precursors: What
... to realize that there are many quantities that can be introduced to describe the speed at which a light pulse moves through a material system.2 This confusing situation arises from the fact that a pulse propagating through any material system will experience some level of distortion — e.g., it sprea ...
... to realize that there are many quantities that can be introduced to describe the speed at which a light pulse moves through a material system.2 This confusing situation arises from the fact that a pulse propagating through any material system will experience some level of distortion — e.g., it sprea ...
John Kerr and his effects found in 1877 and 1878
... electric field (‘light’) in the electric dipole, approximation can safely be used. Below, only the necessary requirements for the quantum mechanical part are listed without discussing the corresponding details. These can be picked up, for example, in Refs. [4–6] and from the references cited therein ...
... electric field (‘light’) in the electric dipole, approximation can safely be used. Below, only the necessary requirements for the quantum mechanical part are listed without discussing the corresponding details. These can be picked up, for example, in Refs. [4–6] and from the references cited therein ...
Interference of light Ordinary illumination Interference fringes
... wavelength of light can be deduced, even though it is very small Even with white light, a few coloured fringes can be seen around the central white fringe, before the colours wash out By putting a wedge of material across S1 the path length can be increased until the fringes disappear, giving a ...
... wavelength of light can be deduced, even though it is very small Even with white light, a few coloured fringes can be seen around the central white fringe, before the colours wash out By putting a wedge of material across S1 the path length can be increased until the fringes disappear, giving a ...
tuning of material optical properties by modification of interlayer
... effects on the transmission of EMW. First effect is connected with shifting of created bands toward higher wavelength direction. This effect is especially visible when a band with a minimum located at about 380 nm is considered through increasing VTL. At the same time, depth of this band decreases s ...
... effects on the transmission of EMW. First effect is connected with shifting of created bands toward higher wavelength direction. This effect is especially visible when a band with a minimum located at about 380 nm is considered through increasing VTL. At the same time, depth of this band decreases s ...
Heuristic Green`s function of the time dependent
... point-like source, and in the more realistic case of anisotropic scattering and pencil beam source, are used to validate the heuristic Green’s function. Except for the very early times, the proposed solution has an excellent accuracy (> 98 % for the isotropic case, and > 97 % for the anisotropic cas ...
... point-like source, and in the more realistic case of anisotropic scattering and pencil beam source, are used to validate the heuristic Green’s function. Except for the very early times, the proposed solution has an excellent accuracy (> 98 % for the isotropic case, and > 97 % for the anisotropic cas ...
Coherent optical reflectance from a monolayer of large particles
... polarized light close to the Brewster angle. This showed the potentiality of the internal-reflection experimental configuration as a sensitive tool to study the kinetics of the adsorption process, and to determine also the optical parameters of the adsorbed particles. The purpose of our work here i ...
... polarized light close to the Brewster angle. This showed the potentiality of the internal-reflection experimental configuration as a sensitive tool to study the kinetics of the adsorption process, and to determine also the optical parameters of the adsorbed particles. The purpose of our work here i ...
PC 481 Fiber Optics Lab Manual
... coupler allows two or more optical signals to be combined into one signal. The coupler can also be used to split the signals apart again. The fused coupler is the most common of the fibre couplers and the principle behind the fused couplers is that when two or more fibre cores are brought to within ...
... coupler allows two or more optical signals to be combined into one signal. The coupler can also be used to split the signals apart again. The fused coupler is the most common of the fibre couplers and the principle behind the fused couplers is that when two or more fibre cores are brought to within ...
Holografie – lasery
... emits laser light in bursts. Continuous wave lasers are far more commonly used in standard holography. As discussed earlier, the recording of an interference pattern on the film forms a hologram. If the subject moves, even a microscopic amount, from one moment to the next, two different interference ...
... emits laser light in bursts. Continuous wave lasers are far more commonly used in standard holography. As discussed earlier, the recording of an interference pattern on the film forms a hologram. If the subject moves, even a microscopic amount, from one moment to the next, two different interference ...
Diffraction
... Now consider the case where a front smooth wave is running on a slit. If this slit is large compared to the wavelength of the light, the wave properties are not observable. Consequently, the slit must be in the order of magnitude of the wavelength of the light used. Now consider Figure 1.1. There, i ...
... Now consider the case where a front smooth wave is running on a slit. If this slit is large compared to the wavelength of the light, the wave properties are not observable. Consequently, the slit must be in the order of magnitude of the wavelength of the light used. Now consider Figure 1.1. There, i ...
Atmospheric optics
Atmospheric optics deals with how the unique optical properties of the Earth's atmosphere cause a wide range of spectacular optical phenomena. The blue color of the sky is a direct result of Rayleigh scattering which redirects higher frequency (blue) sunlight back into the field of view of the observer. Because blue light is scattered more easily than red light, the sun takes on a reddish hue when it is observed through a thick atmosphere, as during a sunrise or sunset. Additional particulate matter in the sky can scatter different colors at different angles creating colorful glowing skies at dusk and dawn. Scattering off of ice crystals and other particles in the atmosphere are responsible for halos, afterglows, coronas, rays of sunlight, and sun dogs. The variation in these kinds of phenomena is due to different particle sizes and geometries.Mirages are optical phenomena in which light rays are bent due to thermal variations in the refraction index of air, producing displaced or heavily distorted images of distant objects. Other optical phenomena associated with this include the Novaya Zemlya effect where the sun appears to rise earlier or set later than predicted with a distorted shape. A spectacular form of refraction occurs with a temperature inversion called the Fata Morgana where objects on the horizon or even beyond the horizon, such as islands, cliffs, ships or icebergs, appear elongated and elevated, like ""fairy tale castles"".Rainbows are the result of a combination of internal reflection and dispersive refraction of light in raindrops. Because rainbows are seen on the opposite side of the sky as the sun, rainbows are more prominent the closer the sun is to the horizon due to their greater distance apart.