Paper
... signals into electrical signals, as the materials they are made of are able to absorb light. Devices that exhibit a special design to collect light are called phototransistors. Several approaches have been studied for efficient light coupling: vertical illumination through a transparent electrode or ...
... signals into electrical signals, as the materials they are made of are able to absorb light. Devices that exhibit a special design to collect light are called phototransistors. Several approaches have been studied for efficient light coupling: vertical illumination through a transparent electrode or ...
Precision High Numerical Aperture Scanning System for
... sample is attached to the stages and is moved through the focal region, which is stationary. This method of scanning is not ideal because it requires the sample to move, which becomes impractical when writing structures in clinical applications. It was also found that the translation speed of these ...
... sample is attached to the stages and is moved through the focal region, which is stationary. This method of scanning is not ideal because it requires the sample to move, which becomes impractical when writing structures in clinical applications. It was also found that the translation speed of these ...
Laser beam collimation testing: reliable results in seconds! New
... precision of 50 µrad. Because it can determine the radius of curvature of the wave front, the Shear Plate Interferometer can also be used to determine the focal length of weakly focused optical systems, or to determine the radius of curvature of weakly focused convex and concave mirrors in the range ...
... precision of 50 µrad. Because it can determine the radius of curvature of the wave front, the Shear Plate Interferometer can also be used to determine the focal length of weakly focused optical systems, or to determine the radius of curvature of weakly focused convex and concave mirrors in the range ...
Lecture 11
... what this is saying is that, in some sense, wave phenomena are absent in the paraxial approximation. As we will see, this transformation rule applies in more general situations as long as the paraxial approximation holds. But let痴 focus on the Gaussian beam for concreteness. The Gaussian beam stays ...
... what this is saying is that, in some sense, wave phenomena are absent in the paraxial approximation. As we will see, this transformation rule applies in more general situations as long as the paraxial approximation holds. But let痴 focus on the Gaussian beam for concreteness. The Gaussian beam stays ...
O A
... of a bundle of glass threads, each of which is capable of transmitting messages modulated onto light waves. Fiber optics has several advantages over traditional metal communications lines. It can carry more data and less susceptible than metal cables to interference. The main disadvantage is that th ...
... of a bundle of glass threads, each of which is capable of transmitting messages modulated onto light waves. Fiber optics has several advantages over traditional metal communications lines. It can carry more data and less susceptible than metal cables to interference. The main disadvantage is that th ...
3 The concept of diffraction limit
... transverse directions, become much larger than the |k| and hence the uncertainty in the λi position can be made comparably smaller than the diffraction limiting case of . As the 2π evanescent waves are excited at the boundary of two different media, they have dominance only close to the interface. T ...
... transverse directions, become much larger than the |k| and hence the uncertainty in the λi position can be made comparably smaller than the diffraction limiting case of . As the 2π evanescent waves are excited at the boundary of two different media, they have dominance only close to the interface. T ...
OPTI 511R, Spring 2015 Problem Set 10 Prof. E. M. Wright Due
... the +kˆ direction, and will thus slow the atom down. However, the Doppler effect must be considered when atomic motion is relevant. To effectively slow down and cool an atom, we should have a beam of light tuned below the atomic resonance: ω < ω0 . This is called red detuning (the light is closer to ...
... the +kˆ direction, and will thus slow the atom down. However, the Doppler effect must be considered when atomic motion is relevant. To effectively slow down and cool an atom, we should have a beam of light tuned below the atomic resonance: ω < ω0 . This is called red detuning (the light is closer to ...
1.1 Objectives
... transparent medium particularly depends on the transversal intensity profile and power of the laser beam. Self-focusing is self-induced (Kerr) lens effect. In the case of long pulses or continuous wave laser radiation, self-focusing phenomenon is responsible for the damage of optical elements [2] an ...
... transparent medium particularly depends on the transversal intensity profile and power of the laser beam. Self-focusing is self-induced (Kerr) lens effect. In the case of long pulses or continuous wave laser radiation, self-focusing phenomenon is responsible for the damage of optical elements [2] an ...
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Microscope Power Point File
... objects that are smaller than half the wavelength of light. White light has an average wavelength of 0.55 micrometers, half of which is 0.275 micrometers. (One micrometer is a thousandth of a millimeter, and there are about 25,000 micrometers to an inch. Micrometers are also called microns.) Any two ...
... objects that are smaller than half the wavelength of light. White light has an average wavelength of 0.55 micrometers, half of which is 0.275 micrometers. (One micrometer is a thousandth of a millimeter, and there are about 25,000 micrometers to an inch. Micrometers are also called microns.) Any two ...
PC 481 Fiber Optics Lab Manual
... distance at which the core are apart, as well as the interaction length. Also, the coupling properties are very dependent upon wavelength I that operation of a coupler at 1310nm will distinctly vary in relation to a 1550nm wavelength. This experimentation will only cover couplers, which operate at t ...
... distance at which the core are apart, as well as the interaction length. Also, the coupling properties are very dependent upon wavelength I that operation of a coupler at 1310nm will distinctly vary in relation to a 1550nm wavelength. This experimentation will only cover couplers, which operate at t ...
mirrors, combination of mirrors and catadioptric systems
... takes for light to travel back and forth; they are also used in the arms of a Michelson interferometer for interferometric measurement of displacements, so that the alignment of the interferometer is maintained throughout the motion. The corner cubes, and more generally many combinations of plane mi ...
... takes for light to travel back and forth; they are also used in the arms of a Michelson interferometer for interferometric measurement of displacements, so that the alignment of the interferometer is maintained throughout the motion. The corner cubes, and more generally many combinations of plane mi ...
Lab 11: Lenses and Optics
... converging lens inside your eye. Adjust the screen (which represents your retina) to focus the image. An image focused on the retina represents a normal eye. To simulate near−sightedness, move the screen away from the lens by a small amount. Prescribe some glasses for your defective eye. Remember th ...
... converging lens inside your eye. Adjust the screen (which represents your retina) to focus the image. An image focused on the retina represents a normal eye. To simulate near−sightedness, move the screen away from the lens by a small amount. Prescribe some glasses for your defective eye. Remember th ...
About Optical Fiber - University of Vaasa
... Multimode fiber employ Light Emitting Diodes (LEDs) with its proper ...
... Multimode fiber employ Light Emitting Diodes (LEDs) with its proper ...
Mechanisms of structural colour in the Morpho butterfly: cooperation
... To elucidate the angular dependence of the reflection from the Morpho wing, we consider a simple model in which a plane wave illuminates a lamella under the assumption that the cuticle layers are infinitely thin with the optical path length of the layer interval equal to that of the actual lamella, ...
... To elucidate the angular dependence of the reflection from the Morpho wing, we consider a simple model in which a plane wave illuminates a lamella under the assumption that the cuticle layers are infinitely thin with the optical path length of the layer interval equal to that of the actual lamella, ...
Retroreflector
A retroreflector (sometimes called a retroflector or cataphote) is a device or surface that reflects light back to its source with a minimum of scattering. In a retroreflector an electromagnetic wavefront is reflected back along a vector that is parallel to but opposite in direction from the wave's source. The angle of incidence at which the device or surface reflects light in this way is greater than zero, unlike a planar mirror, which does this only if the mirror is exactly perpendicular to the wave front, having a zero angle of incidence.