Selective Trapping or Rotation of Isotropic Dielectric Microparticles
... spot (1/e2 diameter of 20 μm) fully covers one single PAS (diameter of 11.325 μm) and the circularly polarized light can be safely considered as a plane wave at the sample plane. Figure 4a shows four recorded frames at t = 1, 2, 3, and 4 s extracted from the movie clip when the PAS is excited by lef ...
... spot (1/e2 diameter of 20 μm) fully covers one single PAS (diameter of 11.325 μm) and the circularly polarized light can be safely considered as a plane wave at the sample plane. Figure 4a shows four recorded frames at t = 1, 2, 3, and 4 s extracted from the movie clip when the PAS is excited by lef ...
University of Groningen Unraveling structure and dynamics by
... discerning two of these areas was used by Rayleigh to measure the resolution of the optical system (see Eq. (3)).[6,11] By adjusting the pinhole aperture in order to achieve a size aperture comparable to the diameter of 0.25 Airy units (AU), where 1 AU =1.22(exc/NA), it is possible to reduce by ~10 ...
... discerning two of these areas was used by Rayleigh to measure the resolution of the optical system (see Eq. (3)).[6,11] By adjusting the pinhole aperture in order to achieve a size aperture comparable to the diameter of 0.25 Airy units (AU), where 1 AU =1.22(exc/NA), it is possible to reduce by ~10 ...
Adaptive Optics and the cone mosaic
... create an artificial guide star by shining a laser into the atmosphere. Because the laser beam is deflected by astronomical seeing on the way up, the returning laser light does not move around in the sky as astronomical sources do. In order to keep astronomical images steady, a natural star nearby i ...
... create an artificial guide star by shining a laser into the atmosphere. Because the laser beam is deflected by astronomical seeing on the way up, the returning laser light does not move around in the sky as astronomical sources do. In order to keep astronomical images steady, a natural star nearby i ...
Sub-cycle Electron Dynamics Probed by Isolated
... dynamics in chemical processes requires access to the bound electron and nuclear motion which dictates the chemical reaction dynamics and outcomes. Here, we present attosecond transient absorption [1] measurements of bound state dynamics in helium atoms and hydrogen molecules, uncovering fast laser- ...
... dynamics in chemical processes requires access to the bound electron and nuclear motion which dictates the chemical reaction dynamics and outcomes. Here, we present attosecond transient absorption [1] measurements of bound state dynamics in helium atoms and hydrogen molecules, uncovering fast laser- ...
The Exact Solution of Nonlinear Stress
... the gases) in the outer regions of the sun the way in which magnetic fields modify the convective flows vary considerably (due to the physical effects of stratification, partial ionization, radiation, and the like), changes in the uppermost layers are seen at the surface first, then those in the dee ...
... the gases) in the outer regions of the sun the way in which magnetic fields modify the convective flows vary considerably (due to the physical effects of stratification, partial ionization, radiation, and the like), changes in the uppermost layers are seen at the surface first, then those in the dee ...
(Digital Micro-Mirror Device) Based Multi-Object
... The system is spectrally quasi-imaging in the sense that it can be adjusted to measure the reflectance from arbitrary regions of interest. In addition it will be possible to do multi-object spectroscopy by carefully designing a mask that allows several spectrally different objects in the scene to be ...
... The system is spectrally quasi-imaging in the sense that it can be adjusted to measure the reflectance from arbitrary regions of interest. In addition it will be possible to do multi-object spectroscopy by carefully designing a mask that allows several spectrally different objects in the scene to be ...
Invariant Imbedding Equations for Electromagnetic Waves in
... The propagation of electromagnetic waves in inhomogeneous media is an important topic in various branches of physics, including optics, plasma physics, astrophysics, and condensed matter physics [1, 2, 3, 4]. Great attention has been paid to the cases where the inhomogeneity is random or periodic [1 ...
... The propagation of electromagnetic waves in inhomogeneous media is an important topic in various branches of physics, including optics, plasma physics, astrophysics, and condensed matter physics [1, 2, 3, 4]. Great attention has been paid to the cases where the inhomogeneity is random or periodic [1 ...
Using the Spectrophotometer
... incident light transmitted through a solution. In other words it they are used to measure the amount of light that passes through a sample material, and by comparison to the initial intensity of light they indirectly measure the amount of light absorbed by a sample. They are also designed to transmi ...
... incident light transmitted through a solution. In other words it they are used to measure the amount of light that passes through a sample material, and by comparison to the initial intensity of light they indirectly measure the amount of light absorbed by a sample. They are also designed to transmi ...
Comparing classical and lab plasma dynamos
... One physics link between the classical and lab dynamos ...
... One physics link between the classical and lab dynamos ...
Absolute phase and amplitude mapping of surface acoustic wave
... of the interferometer. The second beam (corresponding to the horizontal polarization) is directed trough the Acoustic Optical Modulator (AOM). The angle between the incident beam and the AOM is set in order to obtain the first diffraction order collinear to the laser beam (the zero order diffraction ...
... of the interferometer. The second beam (corresponding to the horizontal polarization) is directed trough the Acoustic Optical Modulator (AOM). The angle between the incident beam and the AOM is set in order to obtain the first diffraction order collinear to the laser beam (the zero order diffraction ...
Physical basis of colors seen in Congo red-stained amyloid
... Amyloid stained by Congo red is traditionally said to show apple-green birefringence in polarized light, although in practice various colors may be seen between accurately crossed polarizing filters, called polarizer and analyzer. Other colors are seen as the polarizer and analyzer are uncrossed and ...
... Amyloid stained by Congo red is traditionally said to show apple-green birefringence in polarized light, although in practice various colors may be seen between accurately crossed polarizing filters, called polarizer and analyzer. Other colors are seen as the polarizer and analyzer are uncrossed and ...
Analysis of photonic crystals for light emitting
... r being the radius of the holes. Our results for the two lower bands were within 5% of those reported in 12. A wide forbidden gap for the TE polarization exists in the range of normalized frequencies 0.37 a I ? 0.53 . This structure can be used as a reflecting medium to build a cavity. In the follow ...
... r being the radius of the holes. Our results for the two lower bands were within 5% of those reported in 12. A wide forbidden gap for the TE polarization exists in the range of normalized frequencies 0.37 a I ? 0.53 . This structure can be used as a reflecting medium to build a cavity. In the follow ...
