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... On a plane metal-dielectric interface, small frequency plasmons-polaritons propagate with group velocities close to the speed of light in the dielectric. When frequency reaches the resonance plasmon frequency, the energy of electromagnetic plasmon-polariton undergoes transition to energy of electron ...
... On a plane metal-dielectric interface, small frequency plasmons-polaritons propagate with group velocities close to the speed of light in the dielectric. When frequency reaches the resonance plasmon frequency, the energy of electromagnetic plasmon-polariton undergoes transition to energy of electron ...
LS1-60 luminance standard
... 1 . The LS1-60-C, which is fitted with a clear glass window in the viewing aperture. This version of the standard is intended for such applications as calibration of Hagner, Spectra and other tele-luminance meters. On this model the displayed value agrees closely throughout the range with the actual ...
... 1 . The LS1-60-C, which is fitted with a clear glass window in the viewing aperture. This version of the standard is intended for such applications as calibration of Hagner, Spectra and other tele-luminance meters. On this model the displayed value agrees closely throughout the range with the actual ...
Preview of “ZEISS Microscopy Online ...Aperture and Resolution”
... 700 nanometers. As a reference, it is important to know that 1 millimeter equals 1000 micrometers and 1 micrometer equals 1000 nanometers. Light of green color has a wavelength range centered at 550 nanometers, which corresponds to 0.55 micrometers. If small ob ...
... 700 nanometers. As a reference, it is important to know that 1 millimeter equals 1000 micrometers and 1 micrometer equals 1000 nanometers. Light of green color has a wavelength range centered at 550 nanometers, which corresponds to 0.55 micrometers. If small ob ...
Transformation-designed optical elements
... distance[11]. Shortly there after Pendry transformed the perfect lens to a cylindrical geometry to obtain magnification[12][13]. More recently implementation strategies for near-field magnification have been explored with layered media[14][15] (where the proposed devices are sometimes called hyper l ...
... distance[11]. Shortly there after Pendry transformed the perfect lens to a cylindrical geometry to obtain magnification[12][13]. More recently implementation strategies for near-field magnification have been explored with layered media[14][15] (where the proposed devices are sometimes called hyper l ...
chapter9-Section4
... It is also on the same side of the lens as the object, which means that p is negative. ...
... It is also on the same side of the lens as the object, which means that p is negative. ...
View
... • Production of a magnified image of the lamp filament that is focused at the level of the aperture plane of the condensor. • Opening or closing this diaphragm controls the angle of the light cone that reaches the specimen, which is determining the image resolution along with the numerical aperture ...
... • Production of a magnified image of the lamp filament that is focused at the level of the aperture plane of the condensor. • Opening or closing this diaphragm controls the angle of the light cone that reaches the specimen, which is determining the image resolution along with the numerical aperture ...
Nonlinear optical properties of nanocomposite materials
... A common approach to the development of nonlinear optical materials entails searching for materials that possess, at the molecular level, desirable nonlinear optical properties. An alternative approach, which will be explored in this paper, entails combining known materials into a composite material ...
... A common approach to the development of nonlinear optical materials entails searching for materials that possess, at the molecular level, desirable nonlinear optical properties. An alternative approach, which will be explored in this paper, entails combining known materials into a composite material ...
High speed silicon based optical modulators based on carrier
... advantage is the strong light confinement in submicron waveguides due to the large refractive index difference between silicon and buried silicon oxide (n~2). Strip or rib waveguides on SOI wafers can be realized by using a standard optical lithography process followed by full or partial etching of ...
... advantage is the strong light confinement in submicron waveguides due to the large refractive index difference between silicon and buried silicon oxide (n~2). Strip or rib waveguides on SOI wafers can be realized by using a standard optical lithography process followed by full or partial etching of ...
Doc - Department of Physics
... motion to the medium through which it propagates. Many examples of waves and oscillations seen in our daily lives will be given. The concepts such as displacement, velocity, acceleration, and energy are used to describe mechanical waves. The first part of the course begins with a brief study of peri ...
... motion to the medium through which it propagates. Many examples of waves and oscillations seen in our daily lives will be given. The concepts such as displacement, velocity, acceleration, and energy are used to describe mechanical waves. The first part of the course begins with a brief study of peri ...
Modeling of Lithium Niobate Ridge Waveguides - Rays
... Propagation of a wave in a waveguide only takes place according to different propagation modes which depend on the wave characteristics and the waveguide. The simplest propagation mode is single-mode propagation. When in single-mode propagation all waves, even with different wavelengths, travel with ...
... Propagation of a wave in a waveguide only takes place according to different propagation modes which depend on the wave characteristics and the waveguide. The simplest propagation mode is single-mode propagation. When in single-mode propagation all waves, even with different wavelengths, travel with ...
Angular directivity of diffracted wave in Bragg-mismatched A. Heifetz
... is equivalent to an effective refraction at both interfaces. The transverse shift of the outgoing beam expected from this model is too small to measure easily for the sample thickness of the order of 50 lm and a Gaussian beam with a waist size of about 1 mm. Note also that this model is consistent wi ...
... is equivalent to an effective refraction at both interfaces. The transverse shift of the outgoing beam expected from this model is too small to measure easily for the sample thickness of the order of 50 lm and a Gaussian beam with a waist size of about 1 mm. Note also that this model is consistent wi ...
Principles of optics
... 1.1.3 Boundary conditions at a surface of discontinuity 1.1.4 The energy law of the electromagnetic ®eld 1.2 The wave equation and the velocity of light 1.3 Scalar waves 1.3.1 Plane waves 1.3.2 Spherical waves 1.3.3 Harmonic waves. The phase velocity 1.3.4 Wave packets. The group velocity 1.4 Vector ...
... 1.1.3 Boundary conditions at a surface of discontinuity 1.1.4 The energy law of the electromagnetic ®eld 1.2 The wave equation and the velocity of light 1.3 Scalar waves 1.3.1 Plane waves 1.3.2 Spherical waves 1.3.3 Harmonic waves. The phase velocity 1.3.4 Wave packets. The group velocity 1.4 Vector ...
2 Modeling and Design of Lens Systems
... c) lens shape for ideal on-axis focusing aspherical lens behavior if illuminated off-axis d) illumination with multiple wavelengths chromatic aberrations ...
... c) lens shape for ideal on-axis focusing aspherical lens behavior if illuminated off-axis d) illumination with multiple wavelengths chromatic aberrations ...
Proceedings Template
... increasing the etendue of the lamp due to irreversibility of optical aberrations, as well as providing opportunities for light to be lost due to absorption, scattering and misalignment. Also, properties of the scanning process can cause the color segments to change size as they travel over the modul ...
... increasing the etendue of the lamp due to irreversibility of optical aberrations, as well as providing opportunities for light to be lost due to absorption, scattering and misalignment. Also, properties of the scanning process can cause the color segments to change size as they travel over the modul ...
Waves and Optics - School of Physics
... 1. Imagine you have a spring and you cut it into two pieces, one a third the length of the original spring and one two thirds the length of the original. a. The more coils a spring has the easier it is to stretch it. The shorter spring, with only half as many coils, will not stretch as much as the l ...
... 1. Imagine you have a spring and you cut it into two pieces, one a third the length of the original spring and one two thirds the length of the original. a. The more coils a spring has the easier it is to stretch it. The shorter spring, with only half as many coils, will not stretch as much as the l ...
Total internal reflection holography for optical interconnections
... the needs of optical interconnections. They are efficient and can serve as focusing elements, imaging elements, beam deflectors, and fan-out elements. Almost any shape of structure can be realized. This flexibility allows complex and compact interconnections. Two different types of diffractive optic ...
... the needs of optical interconnections. They are efficient and can serve as focusing elements, imaging elements, beam deflectors, and fan-out elements. Almost any shape of structure can be realized. This flexibility allows complex and compact interconnections. Two different types of diffractive optic ...
Anti-reflective coating
An antireflective or anti-reflection (AR) coating is a type of optical coating applied to the surface of lenses and other optical elements to reduce reflection. In typical imaging systems, this improves the efficiency since less light is lost. In complex systems such as a telescope, the reduction in reflections also improves the contrast of the image by elimination of stray light. This is especially important in planetary astronomy. In other applications, the primary benefit is the elimination of the reflection itself, such as a coating on eyeglass lenses that makes the eyes of the wearer more visible to others, or a coating to reduce the glint from a covert viewer's binoculars or telescopic sight.Many coatings consist of transparent thin film structures with alternating layers of contrasting refractive index. Layer thicknesses are chosen to produce destructive interference in the beams reflected from the interfaces, and constructive interference in the corresponding transmitted beams. This makes the structure's performance change with wavelength and incident angle, so that color effects often appear at oblique angles. A wavelength range must be specified when designing or ordering such coatings, but good performance can often be achieved for a relatively wide range of frequencies: usually a choice of IR, visible, or UV is offered.