Crystallization of charge holes in the spin ladder of Sr14Cu24O41
... reflection is commensurate but is truly a superlattice peak, because it occurs at L ¼ 1.4 (or L c ¼ 0.14) and so does not have the periodicity of the 27.3 Å unit cell. In particular, it should not be confused with the chain dimerization reflections, which have a different periodicity. Our central o ...
... reflection is commensurate but is truly a superlattice peak, because it occurs at L ¼ 1.4 (or L c ¼ 0.14) and so does not have the periodicity of the 27.3 Å unit cell. In particular, it should not be confused with the chain dimerization reflections, which have a different periodicity. Our central o ...
From cathode rays to digital micromirrors: A
... second-generation light valves in high-brightness display venues. And because these new light-valve technologies can be designed into more compact products, their availability has opened up new market opportunities where low weight and portability are required. Perhaps soon, the CRT will be replaced ...
... second-generation light valves in high-brightness display venues. And because these new light-valve technologies can be designed into more compact products, their availability has opened up new market opportunities where low weight and portability are required. Perhaps soon, the CRT will be replaced ...
Engineering metal oxide nanostructures for the
... refractive index responses and can be combined with fiber Bragg gratings [16, 17]. When metallic coatings such as palladium or palladium and metal oxide composites are introduced with Bragg gratings, these act as strain transducers also exerting modifications on the grating peak [18, 30]. When long ...
... refractive index responses and can be combined with fiber Bragg gratings [16, 17]. When metallic coatings such as palladium or palladium and metal oxide composites are introduced with Bragg gratings, these act as strain transducers also exerting modifications on the grating peak [18, 30]. When long ...
@l @2`
... polarized in a direction parallel to the molecular axes particles are dispersed in the nematic host the source 1 changes from orange to yellow as the electric field changes need not be monochromatic but rather any source of from zero volts to approximately 104 volts per centimeter. light may be used ...
... polarized in a direction parallel to the molecular axes particles are dispersed in the nematic host the source 1 changes from orange to yellow as the electric field changes need not be monochromatic but rather any source of from zero volts to approximately 104 volts per centimeter. light may be used ...
Applications of scanning optical microscopy in materials science to
... materials sciences. Kino & Corle (1989) used a CSOM to image different layers of stacked transparent materials. Thomason & Knoester (1990) used a CSOM to study the fibre reinforcement of polymer composites. Jang et al. (1992) applied a CSOM to the study of wood pulp fibres. They were able to obtain ...
... materials sciences. Kino & Corle (1989) used a CSOM to image different layers of stacked transparent materials. Thomason & Knoester (1990) used a CSOM to study the fibre reinforcement of polymer composites. Jang et al. (1992) applied a CSOM to the study of wood pulp fibres. They were able to obtain ...
Modeling Light Scattering in Tissue as Continuous Random Media
... otherwise be imaged and relies on reconstructing tissue properties based on transport theory due to multiple scattering [3]. Models of scattering are also important in treatment methods such as photodynamic therapy where carefully controlling the distribution of energy is crucial for successful trea ...
... otherwise be imaged and relies on reconstructing tissue properties based on transport theory due to multiple scattering [3]. Models of scattering are also important in treatment methods such as photodynamic therapy where carefully controlling the distribution of energy is crucial for successful trea ...
Microstructure and Characteristic of BiVO4 Prepared under
... lipopolysaccharides (LPS), peptidoglycan and periplasm molecules. Keywords: BiVO4 ; monoclinic scheelite structure; photocatalytic efficiency; E. coli; envelop ...
... lipopolysaccharides (LPS), peptidoglycan and periplasm molecules. Keywords: BiVO4 ; monoclinic scheelite structure; photocatalytic efficiency; E. coli; envelop ...
A Tale of Two Limits: Fundamental Properties of Photonic-Crystal Fibers
... guarantees a single guided mode for an increased-index core, and it should be possible to obtain a single mode with no cutoff, with a cutoff for the other polarization. Another waveguide with a cutoff is any waveguide sitting on a substrate, for example a Silicon strip or ridge waveguide on an oxide su ...
... guarantees a single guided mode for an increased-index core, and it should be possible to obtain a single mode with no cutoff, with a cutoff for the other polarization. Another waveguide with a cutoff is any waveguide sitting on a substrate, for example a Silicon strip or ridge waveguide on an oxide su ...
MaterialEASE: Amorphous Materials: A Tutorial on Noncrystalline
... form will generally be more stable. This is because the crystalline solid is at chemical equilibrium, whereas the amorphous form is not. Preparing an amorphous solid requires rapid cooling to avoid crystallization. The cooling rate that constitutes rapid cooling varies with the type of material. The ...
... form will generally be more stable. This is because the crystalline solid is at chemical equilibrium, whereas the amorphous form is not. Preparing an amorphous solid requires rapid cooling to avoid crystallization. The cooling rate that constitutes rapid cooling varies with the type of material. The ...
M F L OLDING THE
... fraction of light that is not transmitted is reflected. For specific frequencies, we can achieve 100 percent transmission.7 Note that a critical and necessary condition for 100 percent transmission efficiency is that the photonic crystal wave guide be single-mode in the frequency range of interest. Fi ...
... fraction of light that is not transmitted is reflected. For specific frequencies, we can achieve 100 percent transmission.7 Note that a critical and necessary condition for 100 percent transmission efficiency is that the photonic crystal wave guide be single-mode in the frequency range of interest. Fi ...
Monte Carlo Simulation of Light Scattering on a Sound Wave
... light detectors [4]. It has been shown that ballistic imaging is feasible only for medium thickness less then 1, 4mm [4].Therefore, this approach is suitable for thin medium but suffers loss of signal and resolution for thick medium as a result of a strong scattering by the tissue. Optical Coherent ...
... light detectors [4]. It has been shown that ballistic imaging is feasible only for medium thickness less then 1, 4mm [4].Therefore, this approach is suitable for thin medium but suffers loss of signal and resolution for thick medium as a result of a strong scattering by the tissue. Optical Coherent ...
Displays - La Salle University
... interact with the charged electrons and protons making up the material. • This can result in reflection or absorption or transmission. • What if the material has a different behaviors in different directions? CSIT 301 (Blum) ...
... interact with the charged electrons and protons making up the material. • This can result in reflection or absorption or transmission. • What if the material has a different behaviors in different directions? CSIT 301 (Blum) ...
Light-absorption effect on Bragg interference in multilayer semiconductor heterostructures
... minimum of R ` ~k A! corresponds to k A}l /a. For higher k A the interference effects get negligible due to strong absorption in the first GaAs layer. This first layer acts as a metallic film, which results in the increase of the reflection coefficient. An important particular case of the absorbing ...
... minimum of R ` ~k A! corresponds to k A}l /a. For higher k A the interference effects get negligible due to strong absorption in the first GaAs layer. This first layer acts as a metallic film, which results in the increase of the reflection coefficient. An important particular case of the absorbing ...
Shielding Property of Closed-Cell AlSi7 Foams and AlSi7 Bulk
... irradiated properties database for niobium, tantalum, molybdenum, and tungsten refractory ...
... irradiated properties database for niobium, tantalum, molybdenum, and tungsten refractory ...
HIGH TRANSMISSION SILICON (HiTranTM) FOR INFRARED
... across the infrared band but also the mechanical and thermal characteristics of HiTranTM silicon will be covered. Silicon technology is perhaps the most mature of all the solid state material technologies with the matureness being demonstrated for monocrystalline silicon over half a century. Since t ...
... across the infrared band but also the mechanical and thermal characteristics of HiTranTM silicon will be covered. Silicon technology is perhaps the most mature of all the solid state material technologies with the matureness being demonstrated for monocrystalline silicon over half a century. Since t ...
Low-birefringence lens design for polarization sensitive optical
... In the deep UV, a cubic crystal’s microscopic intrinsic birefringence becomes problematic. Typically, precision UV grade CaF2 lenses are made with the optical axis of the lens along the [111] crystal direction. For paraxial rays traveling along the [111] direction, there is zero or low birefringence ...
... In the deep UV, a cubic crystal’s microscopic intrinsic birefringence becomes problematic. Typically, precision UV grade CaF2 lenses are made with the optical axis of the lens along the [111] crystal direction. For paraxial rays traveling along the [111] direction, there is zero or low birefringence ...
VENUE1,SESSION 1, 9:00 to 11:00,
... In recent year, photochromic materials have been paid attentions due to the high potential applications including chemical and biological sensing, rewritable data storage and high-solution cell imaging. Inspired by this, we have designed biodegradable fluorescent photoswitching nanoparticles with sp ...
... In recent year, photochromic materials have been paid attentions due to the high potential applications including chemical and biological sensing, rewritable data storage and high-solution cell imaging. Inspired by this, we have designed biodegradable fluorescent photoswitching nanoparticles with sp ...
0894.PDF
... interpreted as being due to shock induced decomposition products NO2 and possibly NO<|. Visible light is known to be produced by electronic transitions, however, without spectroscopy, we cannot distinguish between the possibility that it is correlated with excited states of shock decomposition produ ...
... interpreted as being due to shock induced decomposition products NO2 and possibly NO<|. Visible light is known to be produced by electronic transitions, however, without spectroscopy, we cannot distinguish between the possibility that it is correlated with excited states of shock decomposition produ ...
this PDF file - Canadian Center of Science and Education
... coherent thin layer 2, multiple internal reflections inside it and their interference are significant. Part of waves will be reflected back into layer 1 and the other will be transmitted to incoherent thick layer 3, where multiple internal reflections occur with no interference, before emerging out ...
... coherent thin layer 2, multiple internal reflections inside it and their interference are significant. Part of waves will be reflected back into layer 1 and the other will be transmitted to incoherent thick layer 3, where multiple internal reflections occur with no interference, before emerging out ...
Enhanced backward scattering by surface plasmons on silver film Applied Physics A
... periodic surface corrugations, which exhibit predominantly a single spatial frequency, provide a specific additional momentum that can be used for launching surface plasmons of u Fax: +1-510-643-2311, E-mail: [email protected] ∗ The first two authors contributed equally to this work ...
... periodic surface corrugations, which exhibit predominantly a single spatial frequency, provide a specific additional momentum that can be used for launching surface plasmons of u Fax: +1-510-643-2311, E-mail: [email protected] ∗ The first two authors contributed equally to this work ...
as PDF
... México 1. Introduction An optical fiber becomes active by doping its core with one or more atomic elements, usually (but not restricted to) rare-earths (RE’s), more specifically, the lanthanides that occupy the atomic numbers 57 to 71 of the periodic table. As it will be mentioned later in more deta ...
... México 1. Introduction An optical fiber becomes active by doping its core with one or more atomic elements, usually (but not restricted to) rare-earths (RE’s), more specifically, the lanthanides that occupy the atomic numbers 57 to 71 of the periodic table. As it will be mentioned later in more deta ...
Diamond-like Carbon Thin Film with Controlled Zeta
... Transfer of optical energy to the material by ionizing a large number of electrons that, in turn, transfer energy to the lattice. As a result of the irradiation, the material can undergo a phase or structural modification, leaving behind a localized permanent change in the refractive index or even a ...
... Transfer of optical energy to the material by ionizing a large number of electrons that, in turn, transfer energy to the lattice. As a result of the irradiation, the material can undergo a phase or structural modification, leaving behind a localized permanent change in the refractive index or even a ...
Lec8 - Metallurgical and Materials Engineering – IIT Madras
... factor term is similar to what was defined earlier for X-ray diffraction. It has the following characteristics 1. Scattering is maximum for small θ. As θ increases, f drops. 2. As atomic number increases, f is higher. For θ equal to zero, f is usually very close to the atomic number (Z). 3. As wavel ...
... factor term is similar to what was defined earlier for X-ray diffraction. It has the following characteristics 1. Scattering is maximum for small θ. As θ increases, f drops. 2. As atomic number increases, f is higher. For θ equal to zero, f is usually very close to the atomic number (Z). 3. As wavel ...
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.