Fabry-Perot Interferometer FABRYPEROT.TEX KB 20020122
... is more or less blocked. These conditions can be adjusted by changing the wavelength and/or the geometry. Thus Fabry-Perot plates can be used to measure or to control light wavelengths or to measure geometric properties. The geometric conditions are defined by several properties including thickness, ...
... is more or less blocked. These conditions can be adjusted by changing the wavelength and/or the geometry. Thus Fabry-Perot plates can be used to measure or to control light wavelengths or to measure geometric properties. The geometric conditions are defined by several properties including thickness, ...
Full-Text PDF
... aggregates, spheroids, irregular spheres, Gaussian random spheres, thickened clusters and nine types of ice crystals. The phase functions were either experimental data or calculations. This analysis method uncovers many specific and quantitative similarities and differences between the scattering by ...
... aggregates, spheroids, irregular spheres, Gaussian random spheres, thickened clusters and nine types of ice crystals. The phase functions were either experimental data or calculations. This analysis method uncovers many specific and quantitative similarities and differences between the scattering by ...
Four Aces of Refractive Surgery: Aberrations
... Contrary to the Hartmann-Shack method, the Tscherning aberrometer uses not 1 but a group of laser beams that enter the eye. These beams are generated using a wide laser beam passing through a screen with a large number of round holes. The lens projects an image of the Tscherning screen onto the reti ...
... Contrary to the Hartmann-Shack method, the Tscherning aberrometer uses not 1 but a group of laser beams that enter the eye. These beams are generated using a wide laser beam passing through a screen with a large number of round holes. The lens projects an image of the Tscherning screen onto the reti ...
Time-domain optical data storage by use of Raman coherent population trapping
... The ability of Raman-excited spin echoes to store and retrieve optical intensity and phase information is illustrated in Fig. 3. Figure 3(a) shows the echo signal obtained under nearly identical conditions to the data of Fig. 2(b), except that the intensity of the second optical data beam is reduced ...
... The ability of Raman-excited spin echoes to store and retrieve optical intensity and phase information is illustrated in Fig. 3. Figure 3(a) shows the echo signal obtained under nearly identical conditions to the data of Fig. 2(b), except that the intensity of the second optical data beam is reduced ...
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 ...
LS1-60 luminance standard
... The luminance of the surface can be continuously varied from 0 to about 1500 cd/m2. Irrespective of the luminance value, the colour temperature remains constant at about 2850 K (Standard Illuminant A). The luminance of the source is continuously measured and indicated on a built-in digital display. ...
... The luminance of the surface can be continuously varied from 0 to about 1500 cd/m2. Irrespective of the luminance value, the colour temperature remains constant at about 2850 K (Standard Illuminant A). The luminance of the source is continuously measured and indicated on a built-in digital display. ...
Theoretical criteria for scattering dark states in nanostructured particles Chia Wei Hsu,
... The scattering dark state is similar to “bound state in the continuum” 51–53 because both phenomena arise from destructive interference of outgoing waves. However, a scattering dark state is not a bound state. Eq 4 indicates that the resonance amplitudes decay to zero in the absence of the incoming ...
... The scattering dark state is similar to “bound state in the continuum” 51–53 because both phenomena arise from destructive interference of outgoing waves. However, a scattering dark state is not a bound state. Eq 4 indicates that the resonance amplitudes decay to zero in the absence of the incoming ...
Review and Comparison of High
... to acquire high-quality fringe patterns is to manually adjust the exposure time instead of the lens aperture because manual adjustments of the lens aperture can cause undesired motion between system components that changes the system calibration. The images taken at low exposure times contain useful ...
... to acquire high-quality fringe patterns is to manually adjust the exposure time instead of the lens aperture because manual adjustments of the lens aperture can cause undesired motion between system components that changes the system calibration. The images taken at low exposure times contain useful ...
Polarization Optics Tutorial: Polarizers, Waveplates, Rotators, and
... Waveplates, also known as plate retarders, change the relative phase between two components of polarization. As we’ll see, this can be very useful. A common configuration of waveplate is a plane-parallel plate of a birefringent crystal, typically quartz. Mica, magnesium fluoride, and sapphire have a ...
... Waveplates, also known as plate retarders, change the relative phase between two components of polarization. As we’ll see, this can be very useful. A common configuration of waveplate is a plane-parallel plate of a birefringent crystal, typically quartz. Mica, magnesium fluoride, and sapphire have a ...
Development of Lightning Simulator
... In this work we have developed a lightning simulator. Reproducing the light of lightning, we adopted seven waveforms that contains two light waveforms and five current waveforms of lightning. Furthermore, the lightning simulator can calibrate the color of the simulated light output based on a correl ...
... In this work we have developed a lightning simulator. Reproducing the light of lightning, we adopted seven waveforms that contains two light waveforms and five current waveforms of lightning. Furthermore, the lightning simulator can calibrate the color of the simulated light output based on a correl ...
A nanometer notch filter with high rejection and throughput
... has not been clearly identified and could be due to internal reflections, slight temperature changes affecting the plate spacing, and alignment occurring after the transmission measurementswere collected, or that our portrayal of plate defects is not representative enough of the true defects, if ind ...
... has not been clearly identified and could be due to internal reflections, slight temperature changes affecting the plate spacing, and alignment occurring after the transmission measurementswere collected, or that our portrayal of plate defects is not representative enough of the true defects, if ind ...
![[13] S. Ghost, ST Parker, X. Wang, DL Kaplan and JA Lewis](http://s1.studyres.com/store/data/009648722_1-ad6a1b829b6738b583b7809c145421dd-300x300.png)
Wave optics theory and 3-D deconvolution
... projection through the sample is collected along chief rays (blue lines) corresponding to the pixels on the left-most side of each lenslet. If we take these blue pixels and use them to form an image, then we will have a low-resolution view of the specimen volume at a certain angle. In essence, this ...
... projection through the sample is collected along chief rays (blue lines) corresponding to the pixels on the left-most side of each lenslet. If we take these blue pixels and use them to form an image, then we will have a low-resolution view of the specimen volume at a certain angle. In essence, this ...
Ultracompact high-efficiency polarizing beam splitter with a hybrid
... high-eff iciency polarizing beam splitter with a high extinction ratio. Numerous approaches to achieving waveguide polarizing beam splitters have been reported in the literature2 – 6; they typically require relatively long waveguide structures (length of the order of millimeters). The approach prese ...
... high-eff iciency polarizing beam splitter with a high extinction ratio. Numerous approaches to achieving waveguide polarizing beam splitters have been reported in the literature2 – 6; they typically require relatively long waveguide structures (length of the order of millimeters). The approach prese ...
HS-SCI-CP -- Chapter 15- Interference and
... becomes more complicated. The reason is that white light includes waves of many wavelengths. An example of a white-light interference pattern is shown in Figure 5. The interference pattern is stable or well defined at positions where there is constructive interference between light waves of the same ...
... becomes more complicated. The reason is that white light includes waves of many wavelengths. An example of a white-light interference pattern is shown in Figure 5. The interference pattern is stable or well defined at positions where there is constructive interference between light waves of the same ...
Dynamics of Volcanic and Meteorological Clouds Produced on 26
... Conditions near sea level are hot and dry, and mountains are often draped with orographic clouds. Beneath the temperature inversion (1-2 km), the air is moist with a layer of cumulus clouds. The trade winds, or tropical easterlies, are pronounced in the tropics between 0-6 km, especially during the ...
... Conditions near sea level are hot and dry, and mountains are often draped with orographic clouds. Beneath the temperature inversion (1-2 km), the air is moist with a layer of cumulus clouds. The trade winds, or tropical easterlies, are pronounced in the tropics between 0-6 km, especially during the ...
Resolution in Confocal Microscopy
... of images, the confocal microscope is a scanning microscope. This means that there must a time-lag between the collection of each point. When looking at two small objects simultaneously, methods such as fluorescence correlation spectroscopy[20][21] take advantage of this by looking at the location o ...
... of images, the confocal microscope is a scanning microscope. This means that there must a time-lag between the collection of each point. When looking at two small objects simultaneously, methods such as fluorescence correlation spectroscopy[20][21] take advantage of this by looking at the location o ...
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.