Interference of Light waves Wave Optics
... different media, one of lower index than the film and one of higher index, the conditions for constructive and destructive interference are reversed With different materials on either side of the film, you may have a situation in which there is a 180o phase change at both surfaces or at neither surf ...
... different media, one of lower index than the film and one of higher index, the conditions for constructive and destructive interference are reversed With different materials on either side of the film, you may have a situation in which there is a 180o phase change at both surfaces or at neither surf ...
Tailored Complex Potentials and Friedel`s Law in Atom Optics
... of Friedel’s law due to fundamental optical principles in a very controlled system. Typically, diffraction phenomena are invariant under an inversion of the crystal, even when the elementary cell of the crystal possesses no symmetry. This empirical rule is generally referred to as Friedel’s law [1]. ...
... of Friedel’s law due to fundamental optical principles in a very controlled system. Typically, diffraction phenomena are invariant under an inversion of the crystal, even when the elementary cell of the crystal possesses no symmetry. This empirical rule is generally referred to as Friedel’s law [1]. ...
Light Simulation with Participating Media - HAL
... source of light, following any possible path. Due to the geometrical nature of optics, this is an equivalent problem to the situation where rays are going from the light sources to the camera lens. That is to say that the paths of light are independent of the ray directions. The method consists in t ...
... source of light, following any possible path. Due to the geometrical nature of optics, this is an equivalent problem to the situation where rays are going from the light sources to the camera lens. That is to say that the paths of light are independent of the ray directions. The method consists in t ...
Polarization - OpenStax CNX
... Photographs of the sky can be darkened by polarizing lters, a trick used by many photographers to make clouds brighter by contrast. Scattering from other particles, such as smoke or dust, can also polarize light. Detecting polarization in scattered EM waves can be a useful analytical tool in determ ...
... Photographs of the sky can be darkened by polarizing lters, a trick used by many photographers to make clouds brighter by contrast. Scattering from other particles, such as smoke or dust, can also polarize light. Detecting polarization in scattered EM waves can be a useful analytical tool in determ ...
Efficient visible light detection using individual germanium nanowire
... VG corresponds to the p-type conduction of the Ge NW field effect transistor 共FET兲. The gate sweep of the dc conductance exhibited a more pronounced hysteresis compared to other NWs such as Si NWs that we measured in similar device geometry. This extraordinary hysteresis in FETs with bare Ge NWs has ...
... VG corresponds to the p-type conduction of the Ge NW field effect transistor 共FET兲. The gate sweep of the dc conductance exhibited a more pronounced hysteresis compared to other NWs such as Si NWs that we measured in similar device geometry. This extraordinary hysteresis in FETs with bare Ge NWs has ...
ph104exp09_Physical_Optics_03
... remarkable property that as the number of slits (n) increases, the maxima occur just exactly when the maxima of the double slit appeared, except the maxima become brighter and brighter, and narrower and narrower. These maxima are called the primary maxima : For multi-slit diffraction maxima appear a ...
... remarkable property that as the number of slits (n) increases, the maxima occur just exactly when the maxima of the double slit appeared, except the maxima become brighter and brighter, and narrower and narrower. These maxima are called the primary maxima : For multi-slit diffraction maxima appear a ...
Journal of Modern Optics Slow and fast light: fundamentals and
... Slow light has direct usefulness in the field of optical telecommunication for applications such as buffering and regeneration. Figure 7 shows how a slow-light buffer might be used to increase the throughput of a telecommunication system. Part (a) of the figure shows two data packets arriving simult ...
... Slow light has direct usefulness in the field of optical telecommunication for applications such as buffering and regeneration. Figure 7 shows how a slow-light buffer might be used to increase the throughput of a telecommunication system. Part (a) of the figure shows two data packets arriving simult ...
Sluggish light for radio-frequency true-time-delay
... pulse is a compressed-by-␣ temporal image of the modulating RF signal convolved with the envelope of the femtosecond pulse, as shown in Fig. 2. This is similar to the pulse-shaping operation in an acoustooptic programmable dispersive filter (AOPDF),14 except that the AOPDF pulse shaping is limited t ...
... pulse is a compressed-by-␣ temporal image of the modulating RF signal convolved with the envelope of the femtosecond pulse, as shown in Fig. 2. This is similar to the pulse-shaping operation in an acoustooptic programmable dispersive filter (AOPDF),14 except that the AOPDF pulse shaping is limited t ...
Optical response of plasmonic relief meta-surfaces
... dictated by geometric parameters including the in-plane size, out of plane height/depth, anisotropy, cross-sectional shape and periodic arrangement of features. As illustrated above, the (an)isotropy of unit cells determines the polarization dependence of optical properties. The cross-sectional shap ...
... dictated by geometric parameters including the in-plane size, out of plane height/depth, anisotropy, cross-sectional shape and periodic arrangement of features. As illustrated above, the (an)isotropy of unit cells determines the polarization dependence of optical properties. The cross-sectional shap ...
PPT
... Hubble, Hubble, Toil and Trouble Hubble mirror screw up: The central region of the mirror was flatter than it should be - by just one-fiftieth of the width of a human hair. This is equivalent to only four wavelengths of visible light, but it was enough. One insider said that the Hubble mirror was " ...
... Hubble, Hubble, Toil and Trouble Hubble mirror screw up: The central region of the mirror was flatter than it should be - by just one-fiftieth of the width of a human hair. This is equivalent to only four wavelengths of visible light, but it was enough. One insider said that the Hubble mirror was " ...
An experiment to measure Mie and Rayleigh total scattering cross
... is still a useful approximation for them. Figure 1 also demonstrates how drastically the predictions of the two theories differ for size parameters much larger than unity. For example, Mie theory predicts that the efficiency does not always rise as the size parameter increases, which means that for ...
... is still a useful approximation for them. Figure 1 also demonstrates how drastically the predictions of the two theories differ for size parameters much larger than unity. For example, Mie theory predicts that the efficiency does not always rise as the size parameter increases, which means that for ...
Optical fiber sensors
... Optical fiber sensor: A sensor that measures a physical quantity based on its modulation on the intensity, spectrum, phase, or polarization of light traveling through an optical fiber. Advantages of optical fiber sensors Compact size ...
... Optical fiber sensor: A sensor that measures a physical quantity based on its modulation on the intensity, spectrum, phase, or polarization of light traveling through an optical fiber. Advantages of optical fiber sensors Compact size ...
Applications(2)
... • Optical fiber SPR probes present the highest level of miniaturization of SPR devices, allowing for chemical and biological sensing in inaccessible locations. The ability to transmit optical signals over a long distance makes the use of optical fibers very attractive. Fiber optic waveguides have a ...
... • Optical fiber SPR probes present the highest level of miniaturization of SPR devices, allowing for chemical and biological sensing in inaccessible locations. The ability to transmit optical signals over a long distance makes the use of optical fibers very attractive. Fiber optic waveguides have a ...
as a PDF
... The blue-wing hump was more than 10% to 30% larger than the red-wing hump. This asymmetry feature has also been observed by Snyder and Bentley [7,8]. An example of such a Thomson scattering line profile is shown in figure 4. Although the integrated scattered light intensity is stronger in the blue w ...
... The blue-wing hump was more than 10% to 30% larger than the red-wing hump. This asymmetry feature has also been observed by Snyder and Bentley [7,8]. An example of such a Thomson scattering line profile is shown in figure 4. Although the integrated scattered light intensity is stronger in the blue w ...
w - Вернуться к содержанию сайта
... convection effects (Einstein's "addition" theorem), second-order Doppler effects, secondorder time dilation but no length-contraction effects, second-order mass effects, and seemingly plausible arguments (not actual experiments) advanced for the de Sitter "effect." A direct interferometric light-tra ...
... convection effects (Einstein's "addition" theorem), second-order Doppler effects, secondorder time dilation but no length-contraction effects, second-order mass effects, and seemingly plausible arguments (not actual experiments) advanced for the de Sitter "effect." A direct interferometric light-tra ...
Atmospheric optics
Atmospheric optics deals with how the unique optical properties of the Earth's atmosphere cause a wide range of spectacular optical phenomena. The blue color of the sky is a direct result of Rayleigh scattering which redirects higher frequency (blue) sunlight back into the field of view of the observer. Because blue light is scattered more easily than red light, the sun takes on a reddish hue when it is observed through a thick atmosphere, as during a sunrise or sunset. Additional particulate matter in the sky can scatter different colors at different angles creating colorful glowing skies at dusk and dawn. Scattering off of ice crystals and other particles in the atmosphere are responsible for halos, afterglows, coronas, rays of sunlight, and sun dogs. The variation in these kinds of phenomena is due to different particle sizes and geometries.Mirages are optical phenomena in which light rays are bent due to thermal variations in the refraction index of air, producing displaced or heavily distorted images of distant objects. Other optical phenomena associated with this include the Novaya Zemlya effect where the sun appears to rise earlier or set later than predicted with a distorted shape. A spectacular form of refraction occurs with a temperature inversion called the Fata Morgana where objects on the horizon or even beyond the horizon, such as islands, cliffs, ships or icebergs, appear elongated and elevated, like ""fairy tale castles"".Rainbows are the result of a combination of internal reflection and dispersive refraction of light in raindrops. Because rainbows are seen on the opposite side of the sky as the sun, rainbows are more prominent the closer the sun is to the horizon due to their greater distance apart.