Министерство высшего и среднего специального образования
... to account – считать, рассматривать; счет; to account for объяснять to afford – быть в состоянии что-то сделать to cancel – уничтожать ...
... to account – считать, рассматривать; счет; to account for объяснять to afford – быть в состоянии что-то сделать to cancel – уничтожать ...
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 ...
University of Groningen CURVATURE MEASUREMENT
... Radius of curvature measurements by interference microscopy have been described by Krug et al. (1964). They evaluated the radii of the interference rings and subsequently calculated the radius of curvature of the spherical surface from the formula: R = ( r i - r:)/A(m - n). Taking different combinat ...
... Radius of curvature measurements by interference microscopy have been described by Krug et al. (1964). They evaluated the radii of the interference rings and subsequently calculated the radius of curvature of the spherical surface from the formula: R = ( r i - r:)/A(m - n). Taking different combinat ...
Diffractive optical element and optical pickup apparatus
... Wavelength A3 for the CD (refer to Japanese Patent Applica tion Laid-Open No. 2003-67972, for example). [0010] Speci?cally, the diffractive surface is so designed ...
... Wavelength A3 for the CD (refer to Japanese Patent Applica tion Laid-Open No. 2003-67972, for example). [0010] Speci?cally, the diffractive surface is so designed ...
Double Exposure Holography - Wooster Physics
... All the optics are mounted on a reduced vibration optical bench. The optics begin with a powerful Helium Neon laser with a wavelength of 632.8 nm, rated about 50mW of power. Next the beam travels through a beam splitter, breaking the beam in two directions, the one that goes straight is the object b ...
... All the optics are mounted on a reduced vibration optical bench. The optics begin with a powerful Helium Neon laser with a wavelength of 632.8 nm, rated about 50mW of power. Next the beam travels through a beam splitter, breaking the beam in two directions, the one that goes straight is the object b ...
Controlling light-with-light without nonlinearity
... is replaced by the traveling wave regime: In this example, the metamaterial is initially located at a node of the standing wave where absorption is minimal (combined output intensity595% of input); interruption of the control beam ‘switches on’ signal beam absorption and output drops to 20%. This pr ...
... is replaced by the traveling wave regime: In this example, the metamaterial is initially located at a node of the standing wave where absorption is minimal (combined output intensity595% of input); interruption of the control beam ‘switches on’ signal beam absorption and output drops to 20%. This pr ...
61 DETECTION OF LONGITUDINAL WAVES IN
... distances of the molecules) are detected by using energy transfer (Fiirster type) between dye molecules incorporated in the monolayer. Capillary ripples are detected by specular reflection of a laser beam from the water surface. The dependence of the longitudinal and the transverse wave characterist ...
... distances of the molecules) are detected by using energy transfer (Fiirster type) between dye molecules incorporated in the monolayer. Capillary ripples are detected by specular reflection of a laser beam from the water surface. The dependence of the longitudinal and the transverse wave characterist ...
Imaging Spatial-Helical Mode Interference of Single Photons
... Figure 4 shows a sequence of experimental scans for different values of the interferometer phase δ. In each scan the iris-collimator were moved together in steps of 0.22 mm in a transverse plane. The set of points in a scan formed a 40×40 grid of data imaging the probability density of the heralded ...
... Figure 4 shows a sequence of experimental scans for different values of the interferometer phase δ. In each scan the iris-collimator were moved together in steps of 0.22 mm in a transverse plane. The set of points in a scan formed a 40×40 grid of data imaging the probability density of the heralded ...
EXPERIMENTAL TECHNIQUES
... crystals from high temperature solutions. Flux growth methods allow the crystals to grow before the melting temperature is reached and are used when the crystals melt incongruently or when there is a phase transition before melting. The components of the final desired materials are dissolved in a so ...
... crystals from high temperature solutions. Flux growth methods allow the crystals to grow before the melting temperature is reached and are used when the crystals melt incongruently or when there is a phase transition before melting. The components of the final desired materials are dissolved in a so ...
Forensic Science
... •The examiner studying a specimen under a microscope can simultaneously obtain the visible absorption spectrum or IR spectrum of the material being observed. •This instrument is especially useful in the examination of trace evidence, paint, fiber, and ink evidence. The Scanning Electron Microscope ...
... •The examiner studying a specimen under a microscope can simultaneously obtain the visible absorption spectrum or IR spectrum of the material being observed. •This instrument is especially useful in the examination of trace evidence, paint, fiber, and ink evidence. The Scanning Electron Microscope ...
Highly doped InP as a low loss plasmonic material for
... Two samples with 3 µm and 400 nm thick InP:Si epilayers were grown using different growth conditions on single-side polished (1 0 0) InP:S substrates by low pressure MOVPE. The precursors for phosphorus, indium and silicon were phosphine (PH3), trimethylindium (TMIn) and disilane (Si2H6) respectivel ...
... Two samples with 3 µm and 400 nm thick InP:Si epilayers were grown using different growth conditions on single-side polished (1 0 0) InP:S substrates by low pressure MOVPE. The precursors for phosphorus, indium and silicon were phosphine (PH3), trimethylindium (TMIn) and disilane (Si2H6) respectivel ...
Graded Index Fiber
... Meridional ray A enters the fiber core at an angle θa. Incident ray b at an angle greater than θa is refracted into the cladding an ...
... Meridional ray A enters the fiber core at an angle θa. Incident ray b at an angle greater than θa is refracted into the cladding an ...
... or passive. Active methods typically involve using an external signal to induce a modulation of the intra-cavity light. Passive methods do not use an external signal, but rely on placing some element into the laser cavity which causes self-modulation of the light 5. What is active modelocking? The m ...
F - Images
... Incident Ray: is the ray of light that is striking the mirror. Reflected Ray: is the ray of light that bounces off the mirror. ...
... Incident Ray: is the ray of light that is striking the mirror. Reflected Ray: is the ray of light that bounces off the mirror. ...
Guided photoluminescence study of Nd
... reflectance module with a 6° fixed angle. These measurements enabled the optical thickness to be determined by evaluating the beat of the interference fringes on the basis of the effective medium theory (Bruggeman model) [22, 23]. Thus the refractive index as a function of the wavelength can be ded ...
... reflectance module with a 6° fixed angle. These measurements enabled the optical thickness to be determined by evaluating the beat of the interference fringes on the basis of the effective medium theory (Bruggeman model) [22, 23]. Thus the refractive index as a function of the wavelength can be ded ...
The Balmer Lines of Hydrogen and Deuterium
... ask your TA! While watching a signal meter, either the program’s or the one on the amplifier, carefully adjust the position of the Hg lamp until the signal is maximized. Lower the gain settings if necessary so that the output signal is not saturated. Now look for the line in 2nd order. Double the li ...
... ask your TA! While watching a signal meter, either the program’s or the one on the amplifier, carefully adjust the position of the Hg lamp until the signal is maximized. Lower the gain settings if necessary so that the output signal is not saturated. Now look for the line in 2nd order. Double the li ...
Holography
... Holographic gratings are made by recording the interference intensity patten of two plane waves onto a light sensitive material. Holographic gratings are much more popular than conventional rule gratings nowadays because they are easy to make at low cost; they have smaller scattering loss; can be ma ...
... Holographic gratings are made by recording the interference intensity patten of two plane waves onto a light sensitive material. Holographic gratings are much more popular than conventional rule gratings nowadays because they are easy to make at low cost; they have smaller scattering loss; can be ma ...
Nanowire Grid Polarizers for Mid- and Long-Wavelength
... contrast between transmission of linearly polarized light in the passing and blocking configurations, which is due to their relatively large wire grid pitch (typically ≥ 370 nm). Moxtek and others have previously demonstrated a large increase in aluminum WGP performance at visible and ultraviolet wa ...
... contrast between transmission of linearly polarized light in the passing and blocking configurations, which is due to their relatively large wire grid pitch (typically ≥ 370 nm). Moxtek and others have previously demonstrated a large increase in aluminum WGP performance at visible and ultraviolet wa ...
What is a surface plasmon?
... computations of grating properties encouraged us to develop a quantitative phenomenological analysis of Wood anomalies. Phenomenology: using intuition then mathematics in order to describe quantitatively a phenomenon from the smallest number of parameters It allowed the discovery of the phenomenon o ...
... computations of grating properties encouraged us to develop a quantitative phenomenological analysis of Wood anomalies. Phenomenology: using intuition then mathematics in order to describe quantitatively a phenomenon from the smallest number of parameters It allowed the discovery of the phenomenon o ...
Simulation and Experimental Study of a 2D Photonic
... 150 nm, 250 nm, 300 nm, and 500 nm) are shown in Figure 5a. There is no significant relationship between PC height and the reflectance spectrum in these simulation results. For real application, a high and broad reflectance spectrum was required. On the one hand, in the blue color region (wavelength ...
... 150 nm, 250 nm, 300 nm, and 500 nm) are shown in Figure 5a. There is no significant relationship between PC height and the reflectance spectrum in these simulation results. For real application, a high and broad reflectance spectrum was required. On the one hand, in the blue color region (wavelength ...
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.