Dissipative structures in left-handed material cavity optics
... A first nonlinear left-handed material was proposed by Zharov et al.46 The propagation of light in nonlinear lefthanded materials was modeled theoretically,47 and solitons were predicted in conservative systems with negative refractive index.48 The fundamentals of second-harmonic generation have bee ...
... A first nonlinear left-handed material was proposed by Zharov et al.46 The propagation of light in nonlinear lefthanded materials was modeled theoretically,47 and solitons were predicted in conservative systems with negative refractive index.48 The fundamentals of second-harmonic generation have bee ...
Get PDF - OSA Publishing
... so that the fraction of the total volume occupied by spheres in the range [d, d + Δd] is equal to η (d)Δd, D f is the fractal dimension, K1 is a scaling constant, d min is the smallest sphere size, and dmax is the largest sphere size of the distribution. The total volume fraction of the aggregate F ...
... so that the fraction of the total volume occupied by spheres in the range [d, d + Δd] is equal to η (d)Δd, D f is the fractal dimension, K1 is a scaling constant, d min is the smallest sphere size, and dmax is the largest sphere size of the distribution. The total volume fraction of the aggregate F ...
Optical Stochastic CooLing
... support an optimal operation of the collider. In this paper we consider principles and main limitations for the optical stochastic cooling (OSC) representing a promising technology capable to achieve required cooling rates. The OSC is based on the same principles as the normal microwave stochastic c ...
... support an optimal operation of the collider. In this paper we consider principles and main limitations for the optical stochastic cooling (OSC) representing a promising technology capable to achieve required cooling rates. The OSC is based on the same principles as the normal microwave stochastic c ...
A review of metasurfaces: physics and applications
... one has to devise miniature scatterers that are able to controllably change the phase of the scattered waves and to place such scatterers into an array, forming an artificial interface. The scattering amplitudes should be the same for all scatterers and the spacing between neighboring scatterers in ...
... one has to devise miniature scatterers that are able to controllably change the phase of the scattered waves and to place such scatterers into an array, forming an artificial interface. The scattering amplitudes should be the same for all scatterers and the spacing between neighboring scatterers in ...
MEMS Tunable Silicon Fabry-Perot Cavity
... One dimensional silicon photonic crystals are of great interest for several optical applications. They are made of alternate layers of air and micro machined silicon. They can be actuated to provide tuning of their optical properties and they are fabricated by conventional silicon machining processe ...
... One dimensional silicon photonic crystals are of great interest for several optical applications. They are made of alternate layers of air and micro machined silicon. They can be actuated to provide tuning of their optical properties and they are fabricated by conventional silicon machining processe ...
Ohmic Contacts With Ultra-Low Optical Loss on Heavily Doped n
... by contacting AgGe to n-type doped InP. The role of Ge in forming an n-type ohmic contact was observed and its thickness was optimized to reach the minimal contact resistance. Compared with the conventional AuGeNi based n-type contacts [7], this approach shows lower optical loss in the telecommunica ...
... by contacting AgGe to n-type doped InP. The role of Ge in forming an n-type ohmic contact was observed and its thickness was optimized to reach the minimal contact resistance. Compared with the conventional AuGeNi based n-type contacts [7], this approach shows lower optical loss in the telecommunica ...
Design and Fabrication of Tb -Doped Silicon Oxy
... measurement, and Q-factors of several hundreds were obtained. Using the microdisk resonators to sense streptavidin using biotin functionalization is also demonstrated. Index Terms—Biosensors, microresonators, rare-earth doping. ...
... measurement, and Q-factors of several hundreds were obtained. Using the microdisk resonators to sense streptavidin using biotin functionalization is also demonstrated. Index Terms—Biosensors, microresonators, rare-earth doping. ...
FOC-int-optics2
... DIRECTIONAL COUPLER Directional coupler is one of the very important devices which can be used for various applications like, optical amplitude modulator, power tapping, power divider, wavelength filter, optical switch, optical multiplexer, optical cross-connect and so on. Here we first develop the ...
... DIRECTIONAL COUPLER Directional coupler is one of the very important devices which can be used for various applications like, optical amplitude modulator, power tapping, power divider, wavelength filter, optical switch, optical multiplexer, optical cross-connect and so on. Here we first develop the ...
3D widefield light microscopy with better than 100 nm axial resolution
... be published elsewhere. I5M image data were processed with a truncated inverse filter (equal to the inverse OTF where the OTF magnitude is above a threshold and zero elsewhere, multiplied by an apodization function), followed by a few iterations of the Jannson–van Cittert method which imposes the po ...
... be published elsewhere. I5M image data were processed with a truncated inverse filter (equal to the inverse OTF where the OTF magnitude is above a threshold and zero elsewhere, multiplied by an apodization function), followed by a few iterations of the Jannson–van Cittert method which imposes the po ...
introduction - Academic Science,International Journal of Computer
... Increasing number of layers makes higher reflectivity outside the desired region of interest, which speaks that the filter is more effective. The device becomes photonic multiple quantum well as the number of layers is increased, where the possible transmission is taken place once the incident elect ...
... Increasing number of layers makes higher reflectivity outside the desired region of interest, which speaks that the filter is more effective. The device becomes photonic multiple quantum well as the number of layers is increased, where the possible transmission is taken place once the incident elect ...
Laser phase and frequency stabilization using an optical resonator
... phase jitter from an optical sine wave. It is easy to see that, for those laser phase variations which are much slower than the cavity field storage time, the cavity internal field begins to follow its input and the system reverts from being an optical phase-detector to being an optical frequency di ...
... phase jitter from an optical sine wave. It is easy to see that, for those laser phase variations which are much slower than the cavity field storage time, the cavity internal field begins to follow its input and the system reverts from being an optical phase-detector to being an optical frequency di ...
Abstract
... silicon to guide light depends on many key properties of the material. The band gap of silicon determines the shortest possible wavelength of light able to propagate through the material without being absorbed. The band gap of silicon is approximately 1eV which correlates to a wavelength of 1.24μm; ...
... silicon to guide light depends on many key properties of the material. The band gap of silicon determines the shortest possible wavelength of light able to propagate through the material without being absorbed. The band gap of silicon is approximately 1eV which correlates to a wavelength of 1.24μm; ...
Microscopy Overview
... is then 0.61 λ /(n sin a). A cross-section through the image in an incoherent optical system of two bright point objects of equal strength and different separations is shown in Fig. 1. The intensity in the image between the points decreases as the separation is increased. The ratio of the intensity ...
... is then 0.61 λ /(n sin a). A cross-section through the image in an incoherent optical system of two bright point objects of equal strength and different separations is shown in Fig. 1. The intensity in the image between the points decreases as the separation is increased. The ratio of the intensity ...
Interferometric measurement of the resonant absorption and
... explores the optical properties, both absorption and refractive index, of an atomic gas at optical frequencies near an atomic transition. It uses essentially the same hardware as saturated-absorption spectroscopy, yet it demonstrates much different physics. Furthermore, our experiment is more quanti ...
... explores the optical properties, both absorption and refractive index, of an atomic gas at optical frequencies near an atomic transition. It uses essentially the same hardware as saturated-absorption spectroscopy, yet it demonstrates much different physics. Furthermore, our experiment is more quanti ...
Nanowire Grid Polarizers for Mid- and Long-Wavelength
... The wire grid polarizer (WGP) remains one of the most useful optical components in the field and is prevalent in applications ranging from imaging and displays to communications and scientific instrumentation. The WGP typically consists of an array of metallic lines with sub-wavelength pitch support ...
... The wire grid polarizer (WGP) remains one of the most useful optical components in the field and is prevalent in applications ranging from imaging and displays to communications and scientific instrumentation. The WGP typically consists of an array of metallic lines with sub-wavelength pitch support ...
Specialty flat-top beam delivery fibers with controlled beam
... control SM and MM beams. In other words, this “all-fiber approach” refers to a method able to achieve beam shaping and beam control by transformation of the light as it enters the core of an optical fiber and as it propagates down its length. The following concepts are not limited to fiber laser sys ...
... control SM and MM beams. In other words, this “all-fiber approach” refers to a method able to achieve beam shaping and beam control by transformation of the light as it enters the core of an optical fiber and as it propagates down its length. The following concepts are not limited to fiber laser sys ...
Aero-Optical Environment Around a Cylindrical Turret with a Flat
... Velocity profiles for different elevation angles just downstream of the turret at x/R = 1 are shown in Figure 4. At this location, regardless of the elevation angle, all profiles are consistent with a shear layer. The location of the shear layer is approximately given by the y-location of the maxim ...
... Velocity profiles for different elevation angles just downstream of the turret at x/R = 1 are shown in Figure 4. At this location, regardless of the elevation angle, all profiles are consistent with a shear layer. The location of the shear layer is approximately given by the y-location of the maxim ...
Ultralow-Noise SiN Trampoline Resonators for
... have enabled the growth and patterning of pristine materials, and the creation of mechanical force sensors of extraordinary quality. Cantilevers sensitive to attonewton forces at room temperature have been fabricated from silicon (50 aN=Hz1=2 [1]) and diamond (26 aN=Hz1=2 [2]) using “top-down” techn ...
... have enabled the growth and patterning of pristine materials, and the creation of mechanical force sensors of extraordinary quality. Cantilevers sensitive to attonewton forces at room temperature have been fabricated from silicon (50 aN=Hz1=2 [1]) and diamond (26 aN=Hz1=2 [2]) using “top-down” techn ...
Letter Local transfer of optical angular momentum to
... The (first) intensity term gives a spin transfer with the same sign as ð 0 Þ. As we have already seen (equation (3)) the strange local effects arising from the radial gradient are due to the boundary (second) term. However the field is actually unchanged around the object (ðra Þ ¼ 0 ðra Þ, ðrb ...
... The (first) intensity term gives a spin transfer with the same sign as ð 0 Þ. As we have already seen (equation (3)) the strange local effects arising from the radial gradient are due to the boundary (second) term. However the field is actually unchanged around the object (ðra Þ ¼ 0 ðra Þ, ðrb ...
Miniaturized modules for light sheet microscopy with low chromatic
... above the objective lens to ensure optimum illumination of the sample. For this purpose, a capillary filled with a fluorescent dye, e.g. rhodamine 6G, is placed in the sample holder. The cylindrical lens is now rotated by 90° to visualize the beam waist and to adjust its position by moving the illum ...
... above the objective lens to ensure optimum illumination of the sample. For this purpose, a capillary filled with a fluorescent dye, e.g. rhodamine 6G, is placed in the sample holder. The cylindrical lens is now rotated by 90° to visualize the beam waist and to adjust its position by moving the illum ...
Radiative Transfer Theory - UCL Department of Geography
... where dependence on is implicit and on polarisation allowed, for all terms. These two terms represent loss due to absorption by the particles (leaves) and scattering by the particles away from the direction of propagation (Fung, 1994; p11). They are related to number density through particle absor ...
... where dependence on is implicit and on polarisation allowed, for all terms. These two terms represent loss due to absorption by the particles (leaves) and scattering by the particles away from the direction of propagation (Fung, 1994; p11). They are related to number density through particle absor ...
Optical tweezers
Optical tweezers (originally called ""single-beam gradient force trap"") are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch to physically hold and move microscopic dielectric objects similar to tweezers. Optical tweezers have been particularly successful in studying a variety of biological systems in recent years.