Laser cooling and trapping of atoms
... atomic motion must also include a “random walk” component. This can be described as a diffusion of the atomic momenta in momentum space, similar to Brownian motion in real space. The evolution of the momentum distribution in such circumstances is described by the FokkerPlanckequation, and it can be ...
... atomic motion must also include a “random walk” component. This can be described as a diffusion of the atomic momenta in momentum space, similar to Brownian motion in real space. The evolution of the momentum distribution in such circumstances is described by the FokkerPlanckequation, and it can be ...
Photonic Crystals - Materials Computation Center
... CI Enabled Photonic Crystal Research and Technology: Photonic “materials by design” Multiphysics and multiscale analysis ...
... CI Enabled Photonic Crystal Research and Technology: Photonic “materials by design” Multiphysics and multiscale analysis ...
Acoustooptic interaction of two light beams in a paratellurite crystal
... characteristic features of the AO interaction in birefringent crystals is multiple diffraction of light by ultrasound [1, 2, 6–14], in particular, the double Bragg interaction. In the case of double diffraction, the conditions for the Bragg synchronism are fulfilled at a fixed ultrasound frequency f ...
... characteristic features of the AO interaction in birefringent crystals is multiple diffraction of light by ultrasound [1, 2, 6–14], in particular, the double Bragg interaction. In the case of double diffraction, the conditions for the Bragg synchronism are fulfilled at a fixed ultrasound frequency f ...
Microscopes - Biozentrum
... of glass, to collect light from the sample. At the lower end of the microscope tube one or more objective lenses are screwed into a circular nose piece which may be rotated to select the required objective lens. Typical magnification values of objective lenses are 4x, 5x, 10x, 20x, 40x, 50x and 100x ...
... of glass, to collect light from the sample. At the lower end of the microscope tube one or more objective lenses are screwed into a circular nose piece which may be rotated to select the required objective lens. Typical magnification values of objective lenses are 4x, 5x, 10x, 20x, 40x, 50x and 100x ...
Microscopy Tutorial - Fred Hutch Shared Resources
... polarizers oriented at right angles will not pass any light. Polarization is used for contrast enhancing in microscopy (e.g. polarization microscopy, DIC). Fluorescence ...
... polarizers oriented at right angles will not pass any light. Polarization is used for contrast enhancing in microscopy (e.g. polarization microscopy, DIC). Fluorescence ...
Method and apparatus for gas discharge laser output light
... nature of the problem impacting, e.g., the high speed mea surement of spectral energy integration values for high repetition rate pulsed narroW band gas discharge lasers utiliZing, e.g., fringe Width measurements at some selected Width at some selected percentage of the peak value, e.g., full Width ...
... nature of the problem impacting, e.g., the high speed mea surement of spectral energy integration values for high repetition rate pulsed narroW band gas discharge lasers utiliZing, e.g., fringe Width measurements at some selected Width at some selected percentage of the peak value, e.g., full Width ...
Enhancement of absorption and color contrast in
... due to the nontrivial (not 0 or p) reflection phase shifts at interfaces between one or more lossy materials. These reflection phase shifts can “make up” for the propagation phase shift that would be accumulated in thicker films, leading to dramatically enhanced absorption in the already-lossy diele ...
... due to the nontrivial (not 0 or p) reflection phase shifts at interfaces between one or more lossy materials. These reflection phase shifts can “make up” for the propagation phase shift that would be accumulated in thicker films, leading to dramatically enhanced absorption in the already-lossy diele ...
Characterization of Encircled Flux Source For Multimode
... With increasing adoption of high speed fiber networks, qualifying the infrastructure becomes imperative before deployment. Be it Ethernet standards or the Fiber Channel standards, the primary performance metric has always been the insertion loss (attenuation) of the channel. The performance specific ...
... With increasing adoption of high speed fiber networks, qualifying the infrastructure becomes imperative before deployment. Be it Ethernet standards or the Fiber Channel standards, the primary performance metric has always been the insertion loss (attenuation) of the channel. The performance specific ...
Influence of optical forces on nonlinear optical frequency conversion
... Optomechanical devices based on the transverse gradient force, generally consist of a substrate and a suspended waveguide [5] or two parallel waveguides [6]. The deformation contributes to the effective index change and has been widely used to tune the linear characteristics such as phase, coupling ...
... Optomechanical devices based on the transverse gradient force, generally consist of a substrate and a suspended waveguide [5] or two parallel waveguides [6]. The deformation contributes to the effective index change and has been widely used to tune the linear characteristics such as phase, coupling ...
AS Waves and Optics
... The violinist presses on the string at C to shorten the part of the string that vibrates. Figure 2 shows the string between C and B vibrating in its fundamental mode. The length of the whole string is 320 mm and the distance between C and B is 240 mm. ...
... The violinist presses on the string at C to shorten the part of the string that vibrates. Figure 2 shows the string between C and B vibrating in its fundamental mode. The length of the whole string is 320 mm and the distance between C and B is 240 mm. ...
Light-Matter Interaction: Fundamentals and
... our AMO research interests”? The answer was: “Plenty!”, so this question was a necessary but hardly sufficient criterion for identifying appropriate material. The choices therefore, while not arbitrary, are somewhat dependent on our own personal (sometimes painful) experiences. In order to introduce ...
... our AMO research interests”? The answer was: “Plenty!”, so this question was a necessary but hardly sufficient criterion for identifying appropriate material. The choices therefore, while not arbitrary, are somewhat dependent on our own personal (sometimes painful) experiences. In order to introduce ...
Multimode Pumping of Optical Parametric Oscillators
... For a Laguerre-Gaussian beam composed of n modes, the rod. By appropriate overlap of the diode outputs in the center factor above threshold f ( r ,t ) varies spatially, with distance T of the laser medium, a quasi-Gaussian gain distribution was achieved. When a Gaussian reflectivity mirror [lo] was ...
... For a Laguerre-Gaussian beam composed of n modes, the rod. By appropriate overlap of the diode outputs in the center factor above threshold f ( r ,t ) varies spatially, with distance T of the laser medium, a quasi-Gaussian gain distribution was achieved. When a Gaussian reflectivity mirror [lo] was ...
Novel technique for thermal lens measurement in commonly used
... the various components cannot be measured with arbitrary accuracy. Therefore, it is useful to reduce the static mode mismatch very carefully for each measurement. ...
... the various components cannot be measured with arbitrary accuracy. Therefore, it is useful to reduce the static mode mismatch very carefully for each measurement. ...
Why random potentials?
... • With sufficient scattering, the light waves can follow a random light path back to the source • The waves can propagate in two opposite directions along the looped path, each acquiring the same phase, and interfere constructively at the source, hence there is a higher probability of the wave retur ...
... • With sufficient scattering, the light waves can follow a random light path back to the source • The waves can propagate in two opposite directions along the looped path, each acquiring the same phase, and interfere constructively at the source, hence there is a higher probability of the wave retur ...
Liquid Fundamental Measurements on an Aggregated Dye Crystal
... addition, some quantitative measurements have been taken, including NMR and X-ray measurements of 7,7'-DSCG [1 3] and of some xanthone derivatives [14]. Many measurements are aimed at understanding the underlying structures of LCLCs. Polarizing optical microscopy and X-ray diffraction measurements o ...
... addition, some quantitative measurements have been taken, including NMR and X-ray measurements of 7,7'-DSCG [1 3] and of some xanthone derivatives [14]. Many measurements are aimed at understanding the underlying structures of LCLCs. Polarizing optical microscopy and X-ray diffraction measurements o ...
Magnetic hyperbolic optical metamaterials ARTICLE
... effect comes from the imaginary parts of ex, ez and my. It is known that finite material losses lead to a hybridization of propagating and evanescent modes27. Importantly, in our case for the TM polarization (see Fig. 3f), the hybridization leads to a new class of topology of isofrequency contours th ...
... effect comes from the imaginary parts of ex, ez and my. It is known that finite material losses lead to a hybridization of propagating and evanescent modes27. Importantly, in our case for the TM polarization (see Fig. 3f), the hybridization leads to a new class of topology of isofrequency contours th ...