Concept of the equiphase sphere for light scattering by nonspherical
... Mie theory and its extensions.2,3 However, because most particles of interest are neither spherical nor homogeneous, their scattering properties cannot be obtained analytically. Numerical methods for solving Maxwell’s equations or approximate techniques are needed in such circumstances. In previous ...
... Mie theory and its extensions.2,3 However, because most particles of interest are neither spherical nor homogeneous, their scattering properties cannot be obtained analytically. Numerical methods for solving Maxwell’s equations or approximate techniques are needed in such circumstances. In previous ...
Polarization properties of coherent VUV light at 125
... radiation will produce spin-polarized electrons from single crystal and gases [10, 11, 12]. It was also recently demonstrated that photoelectron spectro-microscopy is a powerful method to study the electronic structure and dynamical properties of molecules adsorbed on surfaces [13]. During the last ...
... radiation will produce spin-polarized electrons from single crystal and gases [10, 11, 12]. It was also recently demonstrated that photoelectron spectro-microscopy is a powerful method to study the electronic structure and dynamical properties of molecules adsorbed on surfaces [13]. During the last ...
Light propagates in the form of waves
... derive their validity from their successes in producing results that approximate those based on rigorous electromagnetic theory. Although electromagnetic optics provides the most complete treatment of light within the confines of classical optics, there are certain optical phenomena that are charact ...
... derive their validity from their successes in producing results that approximate those based on rigorous electromagnetic theory. Although electromagnetic optics provides the most complete treatment of light within the confines of classical optics, there are certain optical phenomena that are charact ...
Assessing the Contributions of Surface Waves and Complex Rays to
... with more dominant contributions has long been employed in quantum-mechanical scattering.2 6 Webelieve that this method was not previously considered for surface waves or complex rays in the context of light scattering by a dielectric sphere. This paper has a second and more theoretical purpose as w ...
... with more dominant contributions has long been employed in quantum-mechanical scattering.2 6 Webelieve that this method was not previously considered for surface waves or complex rays in the context of light scattering by a dielectric sphere. This paper has a second and more theoretical purpose as w ...
Physical basis of colors seen in Congo red-stained amyloid
... of the refractive index, which explains the colored spectrum seen when white light passes through a triangular prism. In a birefringent material that does not absorb light, such as unstained collagen bundles, the refractive index of both axes shows normal dispersion. The birefringence is constant at ...
... of the refractive index, which explains the colored spectrum seen when white light passes through a triangular prism. In a birefringent material that does not absorb light, such as unstained collagen bundles, the refractive index of both axes shows normal dispersion. The birefringence is constant at ...
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... main limitations of this technique [14]. OCT is another in vivo, non-invasive technique using scattered coherent light from the tissue to create images where contrast is due to different reflectivity of the tissue components. Gamblicher et al. used OCT to investigate malignant melanoma with quite pr ...
... main limitations of this technique [14]. OCT is another in vivo, non-invasive technique using scattered coherent light from the tissue to create images where contrast is due to different reflectivity of the tissue components. Gamblicher et al. used OCT to investigate malignant melanoma with quite pr ...
Non-Collinear Second Harmonic Generation in
... use, but for other desired and in principle possible new commercial devices, light induced nonlinear effects are too small. For known materials the time constants, their long-term stability or other properties are not sufficient and thus often the demands of light intensity or power are too high. Th ...
... use, but for other desired and in principle possible new commercial devices, light induced nonlinear effects are too small. For known materials the time constants, their long-term stability or other properties are not sufficient and thus often the demands of light intensity or power are too high. Th ...
Polarization light curves and position angle variation of beamed
... Polarization of beamed gamma-ray bursts than 1= uc 2 uo , the observer will see only part of the circle centred on u o; there is then an asymmetry, and a corresponding net polarization flux (horizontally hatched region of Fig. 2). To understand why the polarization angle in this configuration is h ...
... Polarization of beamed gamma-ray bursts than 1= uc 2 uo , the observer will see only part of the circle centred on u o; there is then an asymmetry, and a corresponding net polarization flux (horizontally hatched region of Fig. 2). To understand why the polarization angle in this configuration is h ...
Longitudinal polarization periodicity of unpolarized light passing
... obtained: under free propagation after the DWD, the DOP is uniform (as well as the intensity profile) across any transverse plane (with respect to the mean propagation direction) but it #177860 - $15.00 USD ...
... obtained: under free propagation after the DWD, the DOP is uniform (as well as the intensity profile) across any transverse plane (with respect to the mean propagation direction) but it #177860 - $15.00 USD ...
Translation and discussion of the De Iride, a
... materials, are broken at interfaces; and the parts of these rays, in the different existing transparent materials, at the interface of those are angularly connected. This, however, is clear by means of an experience, the principle of it is set down in the book on the mirrors: if we cast an object in ...
... materials, are broken at interfaces; and the parts of these rays, in the different existing transparent materials, at the interface of those are angularly connected. This, however, is clear by means of an experience, the principle of it is set down in the book on the mirrors: if we cast an object in ...
Light
Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which is visible to the human eye and is responsible for the sense of sight. Visible light is usually defined as having wavelengths in the range of 400–700 nanometres (nm), or 6993400000000000000♠400×10−9 m to 6993700000000000000♠700×10−9 m, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths). This wavelength means a frequency range of roughly 430–750 terahertz (THz). Often, infrared and ultraviolet are also called light.The main source of light on Earth is the Sun. Sunlight provides the energy that green plants use to create sugars mostly in the form of starches, which release energy into the living things that digest them. This process of photosynthesis provides virtually all the energy used by living things. Historically, another important source of light for humans has been fire, from ancient campfires to modern kerosene lamps. With the development of electric lights and of power systems, electric lighting has all but replaced firelight. Some species of animals generate their own light, called bioluminescence. For example, fireflies use light to locate mates, and vampire squids use it to hide themselves from prey.Primary properties of visible light are intensity, propagation direction, frequency or wavelength spectrum, and polarisation, while its speed in a vacuum, 299,792,458 meters per second, is one of the fundamental constants of nature. Visible light, as with all types of electromagnetic radiation (EMR), is experimentally found to always move at this speed in vacuum.In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not. In this sense, gamma rays, X-rays, microwaves and radio waves are also light. Like all types of light, visible light is emitted and absorbed in tiny ""packets"" called photons, and exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics.