Flat optics with designer metasurfaces
... effective wavevector along the interface that can bend transmitted and reflected light into arbitrary directions. In particular, the component dΦ/dy normal to the plane of incidence leads to out-of-plane refraction and reflection. c, Scanning electron microscopy (SEM) image of a metasurface consisti ...
... effective wavevector along the interface that can bend transmitted and reflected light into arbitrary directions. In particular, the component dΦ/dy normal to the plane of incidence leads to out-of-plane refraction and reflection. c, Scanning electron microscopy (SEM) image of a metasurface consisti ...
Demonstration of high waveguide bending efficiency (>90%) in a m wavelengths µ
... In Fig. 7, the measured η is plotted as function of frequency ω. Different symbols represent data taken on samples with different a’s for TE polarization. The two dash lines represent valence band (VB) edge at ω=0.255 and conduction band (CB) edge at ω=0.325 respectively. The band edge positions are ...
... In Fig. 7, the measured η is plotted as function of frequency ω. Different symbols represent data taken on samples with different a’s for TE polarization. The two dash lines represent valence band (VB) edge at ω=0.255 and conduction band (CB) edge at ω=0.325 respectively. The band edge positions are ...
Ingen lysbildetittel - Department of Telematics
... polarisation, time bin or space State of a qubit is fully described as a sum of vector elements: a|H> + b|V>, with a2 + b2 = 1 State changed though phase shifts or by switching in space. Linear optical elements can be used without major problems (determinsitic), but loss and noise will destroy the s ...
... polarisation, time bin or space State of a qubit is fully described as a sum of vector elements: a|H> + b|V>, with a2 + b2 = 1 State changed though phase shifts or by switching in space. Linear optical elements can be used without major problems (determinsitic), but loss and noise will destroy the s ...
Analysis of Fundamental and Higher Order
... mode. As regards the nonlinear parameter γ, it can generally be either positive or negative, depending on the material of the wave guide. For silica fiber parameter γ is positive but for some other materials it can be negative. More specifically, equation (6) has only two solitons - either dark or b ...
... mode. As regards the nonlinear parameter γ, it can generally be either positive or negative, depending on the material of the wave guide. For silica fiber parameter γ is positive but for some other materials it can be negative. More specifically, equation (6) has only two solitons - either dark or b ...
Effects of Spatial Coherence on the Angular Distribution of Radiant
... multimode lasers, and fields that have passed through a random medium such as the turbulent atmosphere. Hardly any studies have been devoted to this more general case (see, however, [6]). The extinguished power due to scattering of random fields on a random medium has been analyzed in [7,8], and cer ...
... multimode lasers, and fields that have passed through a random medium such as the turbulent atmosphere. Hardly any studies have been devoted to this more general case (see, however, [6]). The extinguished power due to scattering of random fields on a random medium has been analyzed in [7,8], and cer ...
Fluidic Optics - Whitesides Group
... is optically smooth. An additional characteristic of dynamic fluidic systems is ease with which the liquids can be replaced and/or replenished continuously. This capability for replenishment allows injection of liquids with different properties (e.g., index of refraction, absorption, fluorescence) t ...
... is optically smooth. An additional characteristic of dynamic fluidic systems is ease with which the liquids can be replaced and/or replenished continuously. This capability for replenishment allows injection of liquids with different properties (e.g., index of refraction, absorption, fluorescence) t ...
Technical Information on Optics
... The distance of the paraxial focus from the last vertex of an optical system (the distance from the last surface of a lens or lens system to its image plane). Unlike the effective focal length, the back focal length can be measured directly. Birefringence In optical anisotropic crystals, the index o ...
... The distance of the paraxial focus from the last vertex of an optical system (the distance from the last surface of a lens or lens system to its image plane). Unlike the effective focal length, the back focal length can be measured directly. Birefringence In optical anisotropic crystals, the index o ...
CMP4203 Lasers and Photonics
... may be understood at the mechanistic level. Together with skills acquired in related courses in the Computer Engineering degree program, this provides the student with the skill base to approach the next level of accomplishment, namely where they may be required to design and construct a laser-based ...
... may be understood at the mechanistic level. Together with skills acquired in related courses in the Computer Engineering degree program, this provides the student with the skill base to approach the next level of accomplishment, namely where they may be required to design and construct a laser-based ...
Wave Propagation - International Mathematical Union
... Law of Reflection (Euclid). A ray that hits a reflecting surface produces a reflected ray. The reflected ray makes the same angle with the normal to the surface as does the incident ray, and the two rays lie on opposite sides of the normal. Alhazcn, in the eleventh century, noted that the two rays a ...
... Law of Reflection (Euclid). A ray that hits a reflecting surface produces a reflected ray. The reflected ray makes the same angle with the normal to the surface as does the incident ray, and the two rays lie on opposite sides of the normal. Alhazcn, in the eleventh century, noted that the two rays a ...
Electromagnetic Spectrum Web Quest
... buy your products. Your catalog must have 1 page for each wave (radio waves, microwaves, infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays). You should include the benefits of the particular wave as well as a picture that relates. Your catalog should also have an introductory se ...
... buy your products. Your catalog must have 1 page for each wave (radio waves, microwaves, infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays). You should include the benefits of the particular wave as well as a picture that relates. Your catalog should also have an introductory se ...
Effect of pores on transmission properties of transparent ceramics
... The pores are nanosized in the nano-ceramics, and the light scattering by pores decrease. It is thought that the effect of pores is only limited in nano-ceramics because the pore sizes are smaller than 100 nm [14-15], and some research has expanded the possibility nano-ceramics of developing with po ...
... The pores are nanosized in the nano-ceramics, and the light scattering by pores decrease. It is thought that the effect of pores is only limited in nano-ceramics because the pore sizes are smaller than 100 nm [14-15], and some research has expanded the possibility nano-ceramics of developing with po ...
EYE 2
... about 20 degrees away from the fovea. In low light intensities, looking slightly to the side of an object causes the light rays to fall on this area of the retina. Summation by the rods allows better perception than if the light fell on the fovea. (in dim light) ...
... about 20 degrees away from the fovea. In low light intensities, looking slightly to the side of an object causes the light rays to fall on this area of the retina. Summation by the rods allows better perception than if the light fell on the fovea. (in dim light) ...
Geometrical-optics code for computing the optical
... is the ray-optics approximation.10,22 The geometricaloptics method 共GOM兲 has been extensively used in scattering of radiation not only from spherical particles10 but also by nonspherical particles.23 Results from a Monte Carlo code based on the GOM show that differences in the simulated radiances be ...
... is the ray-optics approximation.10,22 The geometricaloptics method 共GOM兲 has been extensively used in scattering of radiation not only from spherical particles10 but also by nonspherical particles.23 Results from a Monte Carlo code based on the GOM show that differences in the simulated radiances be ...
Intensity-dependent change in polarization state of light in normal
... Nonlinear interaction of coherent radiation with a Kerr medium has been studied by many authors. Maker et al [1,2] reported that when strong elliptically polarized light propagates through a lossless isotropic nonlinear medium, self-rotation of the polarization ellipse occurs. Prakash and Chandra [3 ...
... Nonlinear interaction of coherent radiation with a Kerr medium has been studied by many authors. Maker et al [1,2] reported that when strong elliptically polarized light propagates through a lossless isotropic nonlinear medium, self-rotation of the polarization ellipse occurs. Prakash and Chandra [3 ...
Check which vacuum valve you need.
... 2. Make sure the vacuum release ring is at its closed position by turning it clockwise until it cannot go any further. 3. Connect the hand pump (or BCD low pressure Inflator hose for dual activation vacuum valve 25613, 25623) to the vacuum valve and pump several times until it reaches the target vac ...
... 2. Make sure the vacuum release ring is at its closed position by turning it clockwise until it cannot go any further. 3. Connect the hand pump (or BCD low pressure Inflator hose for dual activation vacuum valve 25613, 25623) to the vacuum valve and pump several times until it reaches the target vac ...
White-light diffraction tomography of unlabelled live cells
... imaging of transparent structures24–26. More recently, this method has been applied to live cells27–30. This type of reconstruction has a complex set-up because of the requirement to either scan the illumination angle or rotate the specimen about a fixed axis. As a result, this method is limited to s ...
... imaging of transparent structures24–26. More recently, this method has been applied to live cells27–30. This type of reconstruction has a complex set-up because of the requirement to either scan the illumination angle or rotate the specimen about a fixed axis. As a result, this method is limited to s ...
ray optics and optical instruments
... Property of partial reflection of light is yet another such example. Everyone who has looked into the water in a pond sees image of the face in it, but also sees the bottom of the pond. Newton argued that some of the corpuscles, which fall on the water, get reflected and some get transmitted. But wh ...
... Property of partial reflection of light is yet another such example. Everyone who has looked into the water in a pond sees image of the face in it, but also sees the bottom of the pond. Newton argued that some of the corpuscles, which fall on the water, get reflected and some get transmitted. But wh ...
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.