Manipulating atoms with photons (Nobel lecture of C. Cohen
... atomic energy levels, respectively. Such effects already appear when the atom interacts with the quantized radiation field in the vacuum state. It is well known that atomic excited states get a natural width G, which is also the rate at which a photon is spontaneously emitted from such states. Atomi ...
... atomic energy levels, respectively. Such effects already appear when the atom interacts with the quantized radiation field in the vacuum state. It is well known that atomic excited states get a natural width G, which is also the rate at which a photon is spontaneously emitted from such states. Atomi ...
K.C. Neuman and S.M. Block, "Optical Trapping"
... practical matter, it can be difficult to work with objects smaller than can be readily observed by video microscopy 共⬃0.1 m兲, although particles as small as ⬃35 nm in diameter have been successfully trapped. Dielectric microspheres used alone or as handles to manipulate other objects are typically ...
... practical matter, it can be difficult to work with objects smaller than can be readily observed by video microscopy 共⬃0.1 m兲, although particles as small as ⬃35 nm in diameter have been successfully trapped. Dielectric microspheres used alone or as handles to manipulate other objects are typically ...
Course: Physics 1 Module 3: Optics and Wave Phenomena
... the source in all directions, at a constant speed if the medium is uniform. Due to the medium’s uniformity, the energy in a spherical wave propagates equally in all directions. That is, no one direction is preferred over any other. • It is useful to represent spherical waves with a series of circula ...
... the source in all directions, at a constant speed if the medium is uniform. Due to the medium’s uniformity, the energy in a spherical wave propagates equally in all directions. That is, no one direction is preferred over any other. • It is useful to represent spherical waves with a series of circula ...
Lecture 10 - KFUPM Faculty List
... CS2, 4.5x10-14 cm2/W and n1.6 at vac =1m Pc 30KW; fused silica, 2.5x10-16 cm2/W and n1.5 at vac1m Pc 3.5MW. ...
... CS2, 4.5x10-14 cm2/W and n1.6 at vac =1m Pc 30KW; fused silica, 2.5x10-16 cm2/W and n1.5 at vac1m Pc 3.5MW. ...
Design and construction of a refracting telescope
... Any incident ray travelling parallel to the principal axis of a converging lens will refract through the lens and travel through a focal point on the opposite side of the lens Any incident ray travelling through the focal point on the way to the lens will refract through the lens and travel parallel ...
... Any incident ray travelling parallel to the principal axis of a converging lens will refract through the lens and travel through a focal point on the opposite side of the lens Any incident ray travelling through the focal point on the way to the lens will refract through the lens and travel parallel ...
vapor liquid - UPB Sci Bull
... We have studied analytically the laser -field induced Freedericksz transition in an homeotropic aligned NLC, taking into account the surface anchoring effects. We have calculated the threshold intensity of the laser beam producing the transition and the saturation intensity as a functions of the anc ...
... We have studied analytically the laser -field induced Freedericksz transition in an homeotropic aligned NLC, taking into account the surface anchoring effects. We have calculated the threshold intensity of the laser beam producing the transition and the saturation intensity as a functions of the anc ...
The Pathologist`s Microscope
... them off the nosepiece and clean the end lens with a little glass cleaner on a cotton swab. In addition to magnification, objective lenses have other characteristics. The most important is numerical aperture (N.A.). It’s inscribed on the lens right after magnification. N.A. indicates resolution: lar ...
... them off the nosepiece and clean the end lens with a little glass cleaner on a cotton swab. In addition to magnification, objective lenses have other characteristics. The most important is numerical aperture (N.A.). It’s inscribed on the lens right after magnification. N.A. indicates resolution: lar ...
Phys Chp 10
... Figure 4 is not refracted, since most rays passing through the optical centre are laterally displaced. However, in thin lenses, the lateral displacement of the ray is so small that we can assume that the ray is not refracted (Figure 5). In both diagrams in Figure 6, a construction line has been draw ...
... Figure 4 is not refracted, since most rays passing through the optical centre are laterally displaced. However, in thin lenses, the lateral displacement of the ray is so small that we can assume that the ray is not refracted (Figure 5). In both diagrams in Figure 6, a construction line has been draw ...
Development of a simulator of a satellite-to
... variations that have been attributed to water mass distribution.8 These results were achieved with the SST-LL method using a microwave-ranging system.9 However, a more accurate static gravity-field model and further information on temporal geoid variations are needed not only for practical applicati ...
... variations that have been attributed to water mass distribution.8 These results were achieved with the SST-LL method using a microwave-ranging system.9 However, a more accurate static gravity-field model and further information on temporal geoid variations are needed not only for practical applicati ...
Optical Indicatrix
... Extraordinary rays or w rays have waves vibrating in a principal section, which is represented by an ellipsoid and thus the waves travel different distances in the same time depending on the orientation of the incident beam. They are called extraordinary rays because the ray path and the wave normal ...
... Extraordinary rays or w rays have waves vibrating in a principal section, which is represented by an ellipsoid and thus the waves travel different distances in the same time depending on the orientation of the incident beam. They are called extraordinary rays because the ray path and the wave normal ...
Microscopes - Photonics Research Group
... eyepiece, albeit with residual error of the secondary spectrum and appreciable curvature of field. Early high-resolution compound microscopes were equipped with an (oilimmersible) Abbe condenser whose iris diaphragm, placed at the front focal plane of the condenser, could be off-centered to achieve ...
... eyepiece, albeit with residual error of the secondary spectrum and appreciable curvature of field. Early high-resolution compound microscopes were equipped with an (oilimmersible) Abbe condenser whose iris diaphragm, placed at the front focal plane of the condenser, could be off-centered to achieve ...
ComplexLightBookChapterEG
... to beams of light where one or more parameters are changed within the beam of light. In particular, spatial modes have received much attention, generated either directly from lasers or by manipulation of the wavefront via diffractive optical elements. These studies have led us to Laguerre-Gauss beam ...
... to beams of light where one or more parameters are changed within the beam of light. In particular, spatial modes have received much attention, generated either directly from lasers or by manipulation of the wavefront via diffractive optical elements. These studies have led us to Laguerre-Gauss beam ...
Eye Box Performance Parameters for Non Pupil Forming Head
... This measurement is performed at various spatial frequencies to generate a CTF curve that fully describes the contrast of the display versus spatial resolution. This measurement is also performed in both the horizontal and vertical orientations of the square wave patterns. In order to use the displ ...
... This measurement is performed at various spatial frequencies to generate a CTF curve that fully describes the contrast of the display versus spatial resolution. This measurement is also performed in both the horizontal and vertical orientations of the square wave patterns. In order to use the displ ...
High‐transmission dielectric metasurface with 2π phase control at
... at optical frequencies, but have yet to unequivocally show transmission coefficients and bandwidths significantly superior to their metallic counterparts [8–10, 21–27]. In this work, we provide clear theoretical and experimental proof that close-to-unity resonant transmission can be achieved at visi ...
... at optical frequencies, but have yet to unequivocally show transmission coefficients and bandwidths significantly superior to their metallic counterparts [8–10, 21–27]. In this work, we provide clear theoretical and experimental proof that close-to-unity resonant transmission can be achieved at visi ...
The 9th Asia Pacific
... Third-order nonlinear optical phenomena have been intensely studied in integrated devices [16-19] for different applications. The third order nonlinear efficiency of such devices can be improved by increasing the waveguide nonlinear parameter γ, which can be obtained by reducing effective area or us ...
... Third-order nonlinear optical phenomena have been intensely studied in integrated devices [16-19] for different applications. The third order nonlinear efficiency of such devices can be improved by increasing the waveguide nonlinear parameter γ, which can be obtained by reducing effective area or us ...
Light sheet-based fluorescence microscopy: more dimensions, more
... The same holds true in confocal fluorescence microscopy. Optical sectioning is not obtained in the illumination process, but by discriminating against the out of focus fluorescence light with a pinhole in front of the detector. Hence, most of the light emitted by the specimen does not reach the dete ...
... The same holds true in confocal fluorescence microscopy. Optical sectioning is not obtained in the illumination process, but by discriminating against the out of focus fluorescence light with a pinhole in front of the detector. Hence, most of the light emitted by the specimen does not reach the dete ...
Hwk Set #7 - Publisher`s solutions
... 24.31. Visualize: Hard thought shows that if the left focal points for both lenses coincide then the parallel rays before and after the beam splitter are reproduced. The first lens diverges the rays as if they had come from the focal point of the converging lens. ...
... 24.31. Visualize: Hard thought shows that if the left focal points for both lenses coincide then the parallel rays before and after the beam splitter are reproduced. The first lens diverges the rays as if they had come from the focal point of the converging lens. ...
1. Introduction - About the journal
... on the laser beam are: phase-front distortion, beam broadening, beam wander and redistribution of the intensity within the beam. The temporary redistribution of the intensity, known as scintillation, results from the chaotic flow changes of air and from thermal gradients within the optical path caus ...
... on the laser beam are: phase-front distortion, beam broadening, beam wander and redistribution of the intensity within the beam. The temporary redistribution of the intensity, known as scintillation, results from the chaotic flow changes of air and from thermal gradients within the optical path caus ...
3-D Ultrahigh Resolution Optical Coherence Tomography with
... noninvasive optical biopsy of the human retina (D. Huang, et al, 1991). OCT is based on low coherence interferometry (R. C. Youngquist, et al, 1987), in which the pattern of interference between the reference and object beams is used to determine the amount of light reflected back from a certain poi ...
... noninvasive optical biopsy of the human retina (D. Huang, et al, 1991). OCT is based on low coherence interferometry (R. C. Youngquist, et al, 1987), in which the pattern of interference between the reference and object beams is used to determine the amount of light reflected back from a certain poi ...
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.