- ePrints Soton
... E-mail: jz208r@ecs.soton.ac.uk Abstract. Photonic crystal is a composite dielectric with periodic modulation of refractive index that brings about unique photonic band-gap effect by which light could be totally reflected on the surface of such material regardless of any incident angle or mode. Many ...
... E-mail: jz208r@ecs.soton.ac.uk Abstract. Photonic crystal is a composite dielectric with periodic modulation of refractive index that brings about unique photonic band-gap effect by which light could be totally reflected on the surface of such material regardless of any incident angle or mode. Many ...
HS-SCI-CP -- Chapter 15- Interference and
... from constructive and destructive interference. In the case of interference, it is assumed that the slits behave as point sources of light. For diffraction, the actual width of a single slit is considered. According to Huygens' principle, each portion of a slit acts as a source of waves. Hence, ligh ...
... from constructive and destructive interference. In the case of interference, it is assumed that the slits behave as point sources of light. For diffraction, the actual width of a single slit is considered. According to Huygens' principle, each portion of a slit acts as a source of waves. Hence, ligh ...
Ceramics - Notes Milenge
... carbide, tungsten carbide, silica sand, aluminium oxide / corundum are some typical examples of abrasive ceramic materials. Cements: cement, plaster of paris and lime come under this group of ceramics. The characteristic property of these materials is that when they are mixed with water, they form s ...
... carbide, tungsten carbide, silica sand, aluminium oxide / corundum are some typical examples of abrasive ceramic materials. Cements: cement, plaster of paris and lime come under this group of ceramics. The characteristic property of these materials is that when they are mixed with water, they form s ...
Light Field Editing Based on Reparameterization
... One of the planes can be seen as the camera plane, where the cameras are located (plane st), and the other as the focal plane (plane xy). Note that the radiance can be reduced to a 4D vector because we assume it travels through free space (and thus does not change along the ray). It is often benefici ...
... One of the planes can be seen as the camera plane, where the cameras are located (plane st), and the other as the focal plane (plane xy). Note that the radiance can be reduced to a 4D vector because we assume it travels through free space (and thus does not change along the ray). It is often benefici ...
Advanced Vitreous State – The Physical
... pulse of laser light correspond to a “one” and a low power pulse to a “zero”. • This signal can be modulated at a rate of 100 Gb/second in a signal channel. • About 100 channels can be transmitted through a single fiber using WDM. • This results in a transmission capacity of more than 10 Tb/second ( ...
... pulse of laser light correspond to a “one” and a low power pulse to a “zero”. • This signal can be modulated at a rate of 100 Gb/second in a signal channel. • About 100 channels can be transmitted through a single fiber using WDM. • This results in a transmission capacity of more than 10 Tb/second ( ...
G070376-00
... After finishing the current S5 science run, LIGO will be upgraded to an enhanced configuration (E-LIGO), that will include among other things an increase in laser power from 10 W to 30 W. At the new power level, electro-optic modulators (EOMs) must be replaced – current LiNbO3-based EOMs suffer from ...
... After finishing the current S5 science run, LIGO will be upgraded to an enhanced configuration (E-LIGO), that will include among other things an increase in laser power from 10 W to 30 W. At the new power level, electro-optic modulators (EOMs) must be replaced – current LiNbO3-based EOMs suffer from ...
From Range Scans to 3D Models - Washington
... may be incorrect, because only some of the scene geometry is observed. Realtime Z will also allow us to study the time evolution of deforming shapes, such as a facial expression. Finally, in combination with image-based rendering techniques (see [8] in this issue), the Z component could permit more ...
... may be incorrect, because only some of the scene geometry is observed. Realtime Z will also allow us to study the time evolution of deforming shapes, such as a facial expression. Finally, in combination with image-based rendering techniques (see [8] in this issue), the Z component could permit more ...
Slow light in various media: a tutorial
... atomic polarization is a horizontal line a = 12, indicating the obvious fact that it has zero group velocity, as atoms do not move, at least not on the scale of the speed of light. In the vicinity of the resonance two modes couple into each other, and the modified dispersion curve is split into tw ...
... atomic polarization is a horizontal line a = 12, indicating the obvious fact that it has zero group velocity, as atoms do not move, at least not on the scale of the speed of light. In the vicinity of the resonance two modes couple into each other, and the modified dispersion curve is split into tw ...
Theoretical criteria for scattering dark states in nanostructured particles Chia Wei Hsu,
... lossless materials and significantly suppressed scattering for realistic materials with loss. We also discuss potential applications for slow light, transparent projection screen, and wavelength-selective transmission. Consider a linearly polarized planewave incident on an obstacle that is spherical ...
... lossless materials and significantly suppressed scattering for realistic materials with loss. We also discuss potential applications for slow light, transparent projection screen, and wavelength-selective transmission. Consider a linearly polarized planewave incident on an obstacle that is spherical ...
using standard syste
... cesses. For example, sum-frequency generation can be enhanced at the band edges. In addition, the small group velocity leads to enhancement of the stimulated emission since the effective gain is proportional to 1/v g . 32 The guiding or bending of EM waves through the localized defect modes via hopp ...
... cesses. For example, sum-frequency generation can be enhanced at the band edges. In addition, the small group velocity leads to enhancement of the stimulated emission since the effective gain is proportional to 1/v g . 32 The guiding or bending of EM waves through the localized defect modes via hopp ...
Chemical sciences- SCIENCE F-6
... selecting materials for uses based on their properties considering how the properties of materials affect the management of waste or can lead to pollution comparing solids and liquids by investigating differences, such as the Critical and creative thinking ability to flow or maintain shape and ...
... selecting materials for uses based on their properties considering how the properties of materials affect the management of waste or can lead to pollution comparing solids and liquids by investigating differences, such as the Critical and creative thinking ability to flow or maintain shape and ...
Light Measurement Handbook
... on the outer surface to avoid refraction, absorption, and scatter from light passing through the transparent substrate found in second surface mirrors. When light obeys the law of reflection, it is termed a specular reflection. Most hard polished (shiny) surfaces are primarily specular in nature. Ev ...
... on the outer surface to avoid refraction, absorption, and scatter from light passing through the transparent substrate found in second surface mirrors. When light obeys the law of reflection, it is termed a specular reflection. Most hard polished (shiny) surfaces are primarily specular in nature. Ev ...
Blunt Answer - hrsbstaff.ednet.ns.ca
... that a slit file length of a paperclip in stretched PVB would open into a hole rather than tear the fabric further. Adding to this unexpected, macroscopic demonstration of chick blunting, computer simulations of fracturing in even more elastic materials pointed to blunting as a barrier to crack grow ...
... that a slit file length of a paperclip in stretched PVB would open into a hole rather than tear the fabric further. Adding to this unexpected, macroscopic demonstration of chick blunting, computer simulations of fracturing in even more elastic materials pointed to blunting as a barrier to crack grow ...
Chapter 3 Crystallography and Diffraction Techniques
... Colors of the CuInS2 QDs grown at different solvothermal temperatures for 1 h. These QDs are dispersed in hexane. ...
... Colors of the CuInS2 QDs grown at different solvothermal temperatures for 1 h. These QDs are dispersed in hexane. ...
Collective effects in the radiation pressure force
... of view, and as far as diffraction effects are concerned, the atomic cloud can be described as a dielectric medium with an effective complex refractive index, even when the atoms are separated by more than a wavelength. The real part of the index corresponds to the coherent scattering of the inciden ...
... of view, and as far as diffraction effects are concerned, the atomic cloud can be described as a dielectric medium with an effective complex refractive index, even when the atoms are separated by more than a wavelength. The real part of the index corresponds to the coherent scattering of the inciden ...
FREE Sample Here
... conditions (geometric optics). The premise was that light consists of rays that move outward from their source in straight lines as long as they are traveling in a consistent medium (air, water, space, or glass, for example). When a ray of light hits another medium, as when sunlight strikes the surf ...
... conditions (geometric optics). The premise was that light consists of rays that move outward from their source in straight lines as long as they are traveling in a consistent medium (air, water, space, or glass, for example). When a ray of light hits another medium, as when sunlight strikes the surf ...
PDF only - at www.arxiv.org.
... when 50 % Cd is substituted by Sr and hence the material becomes anisotropic. An extraordinary peak at 7 eV in the c-direction shows strong absorption of Cd0.50Sr0.50O. It is also clear from the figure that anisotropy decreases with the increase in the incident photon energy. The material becomes is ...
... when 50 % Cd is substituted by Sr and hence the material becomes anisotropic. An extraordinary peak at 7 eV in the c-direction shows strong absorption of Cd0.50Sr0.50O. It is also clear from the figure that anisotropy decreases with the increase in the incident photon energy. The material becomes is ...
Sample Pages
... assume a two-level atom with levels 1 (ground state) and 2 (excited state). The energies of the ground and excited states are E1 and E2 , respectively, and the energy difference is therefore given by the difference E12 = E2 − E1 . When light with photons of energy equal to this difference is absorb ...
... assume a two-level atom with levels 1 (ground state) and 2 (excited state). The energies of the ground and excited states are E1 and E2 , respectively, and the energy difference is therefore given by the difference E12 = E2 − E1 . When light with photons of energy equal to this difference is absorb ...
Lec03 - nptel
... No matter what the angle of incidence of the light is, any light that enters the fiber from the side does not propagate along the fiber. The only option thus available with us is to launch the light through the tip of the fiber. That is, in order to guide light along the fiber, the light must be inc ...
... No matter what the angle of incidence of the light is, any light that enters the fiber from the side does not propagate along the fiber. The only option thus available with us is to launch the light through the tip of the fiber. That is, in order to guide light along the fiber, the light must be inc ...
Slide 1
... For silicon, the energy associated with the band gap is 1.1eV. This energy is specific to silicon. If light does not have this threshold of energy, then it will likely go right through the solar cell or it could be absorbed and cause vibrations in the atoms. Light with too Much Energy Here the light ...
... For silicon, the energy associated with the band gap is 1.1eV. This energy is specific to silicon. If light does not have this threshold of energy, then it will likely go right through the solar cell or it could be absorbed and cause vibrations in the atoms. Light with too Much Energy Here the light ...
A Basic Introduction to BRDF-Based Lighting
... From this figure, we make a couple of observations about light. First, when light makes contact with a material, three types of interactions may occur: light reflection, light absorption, and light transmittance. That is, some of the incident light is reflected, some of the light is transmitted, an ...
... From this figure, we make a couple of observations about light. First, when light makes contact with a material, three types of interactions may occur: light reflection, light absorption, and light transmittance. That is, some of the incident light is reflected, some of the light is transmitted, an ...
True-False Questions
... conditions (geometric optics). The premise was that light consists of rays that move outward from their source in straight lines as long as they are traveling in a consistent medium (air, water, space, or glass, for example). When a ray of light hits another medium, as when sunlight strikes the surf ...
... conditions (geometric optics). The premise was that light consists of rays that move outward from their source in straight lines as long as they are traveling in a consistent medium (air, water, space, or glass, for example). When a ray of light hits another medium, as when sunlight strikes the surf ...
Two electric field Monte Carlo models of coherent backscattering of
... −1 cos θF HG cos θd cos θ for any given phase function g ∈ −1; 1. The photon packet continues to travel through the medium according to Eqs. (3) and (4) until it is either fully absorbed or leaves the scattering medium. At this point, any relevant quantities (e.g., the spatial distribution of ...
... −1 cos θF HG cos θd cos θ for any given phase function g ∈ −1; 1. The photon packet continues to travel through the medium according to Eqs. (3) and (4) until it is either fully absorbed or leaves the scattering medium. At this point, any relevant quantities (e.g., the spatial distribution of ...
Investigation of the Optical Properties of YAG:Ce Phosphor
... Yamada et al. in 2003 and Narendran et al. in 2005 quantified forward and backward transmitted light from a layer of YAG:Ce phosphor for an excitation radiation near 470 nm (blue) and down-converted broadband yellow light.9,11 Narendran et al. showed that more than 60% of the light propagates backwa ...
... Yamada et al. in 2003 and Narendran et al. in 2005 quantified forward and backward transmitted light from a layer of YAG:Ce phosphor for an excitation radiation near 470 nm (blue) and down-converted broadband yellow light.9,11 Narendran et al. showed that more than 60% of the light propagates backwa ...
Transparency and translucency
In the field of optics, transparency (also called pellucidity or diaphaneity) is the physical property of allowing light to pass through the material without being scattered. On a macroscopic scale (one where the dimensions investigated are much, much larger than the wavelength of the photons in question), the photons can be said to follow Snell's Law. Translucency (also called translucence or translucidity) is a super-set of transparency: it allows light to pass through, but does not necessarily (again, on the macroscopic scale) follow Snell's law; the photons can be scattered at either of the two interfaces where there is a change in index of refraction, or internally. In other words, a translucent medium allows the transport of light while a transparent medium not only allows the transport of light but allows for image formation. The opposite property of translucency is opacity. Transparent materials appear clear, with the overall appearance of one color, or any combination leading up to a brilliant spectrum of every color.When light encounters a material, it can interact with it in several different ways. These interactions depend on the wavelength of the light and the nature of the material. Photons interact with an object by some combination of reflection, absorption and transmission.Some materials, such as plate glass and clean water, transmit much of the light that falls on them and reflect little of it; such materials are called optically transparent. Many liquids and aqueous solutions are highly transparent. Absence of structural defects (voids, cracks, etc.) and molecular structure of most liquids are mostly responsible for excellent optical transmission.Materials which do not transmit light are called opaque. Many such substances have a chemical composition which includes what are referred to as absorption centers. Many substances are selective in their absorption of white light frequencies. They absorb certain portions of the visible spectrum while reflecting others. The frequencies of the spectrum which are not absorbed are either reflected back or transmitted for our physical observation. This is what gives rise to color. The attenuation of light of all frequencies and wavelengths is due to the combined mechanisms of absorption and scattering.Transparency can provide almost perfect camouflage for animals able to achieve it. This is easier in dimly-lit or turbid seawater than in good illumination. Many marine animals such as jellyfish are highly transparent.