Optical Variability of Hercules X-1/HZ Herculis
... a period of 1.7 days. This is due to the orbital motion of the binary. The X-ray radiation hitting HZ Herculis is reprocessed to optical wavelength, i.e. the X-ray heated side of HZ Herculis pointing towards Hercules X-1 shows a much greater luminosity than the ’back’ of the star. Since we see the s ...
... a period of 1.7 days. This is due to the orbital motion of the binary. The X-ray radiation hitting HZ Herculis is reprocessed to optical wavelength, i.e. the X-ray heated side of HZ Herculis pointing towards Hercules X-1 shows a much greater luminosity than the ’back’ of the star. Since we see the s ...
7.1 textbook answers - aiss-science-9
... b Optical fibres work by passing light along the fibre through totally internal reflection. This requires that the surface of the fibre be very smooth. Scratches on the surface of the optical fibre would prevent the light from being reflected. Instead, the light might be scattered or escape from the ...
... b Optical fibres work by passing light along the fibre through totally internal reflection. This requires that the surface of the fibre be very smooth. Scratches on the surface of the optical fibre would prevent the light from being reflected. Instead, the light might be scattered or escape from the ...
The generation of nondiffracting beams using
... In this way we can plot only the phase of the interferogram, discarding information about the amplitude, and hence obtain an approximate description of the interferogram, which is accurate regarding its phase but not its amplitude. More complex and ingenious schemes to preserve and encode both the a ...
... In this way we can plot only the phase of the interferogram, discarding information about the amplitude, and hence obtain an approximate description of the interferogram, which is accurate regarding its phase but not its amplitude. More complex and ingenious schemes to preserve and encode both the a ...
Minimized speckle noise in lens-less holographic projection by pixel
... numerous solutions of laser pico-projection, based on beam scanning [1] and holography [2,3]. This work focuses on the holographic approach, since beam scanning technique has persistent difficulties with laser eye-safety and strong image flickering. On the other hand the holographic projection provi ...
... numerous solutions of laser pico-projection, based on beam scanning [1] and holography [2,3]. This work focuses on the holographic approach, since beam scanning technique has persistent difficulties with laser eye-safety and strong image flickering. On the other hand the holographic projection provi ...
Ultrafast adaptive optical near-field control
... mirrors 共DMs兲. In the case of LCDs they have typical frequency resolutions of 128 or 640 independent pixels. This leads to a vast number of different possible temporal intensity and phase profiles of the electric field. We have recently developed the technique of femtosecond phase and polarization s ...
... mirrors 共DMs兲. In the case of LCDs they have typical frequency resolutions of 128 or 640 independent pixels. This leads to a vast number of different possible temporal intensity and phase profiles of the electric field. We have recently developed the technique of femtosecond phase and polarization s ...
Evolution of inflation-generated magnetic field through
... number, and the evolution with scale factor a is as expected from flux conservation. This tiny value is a consequence of the conformal invariance of the abelian vector field lagrangian density and the background spacetime. To generate a large enough magnetic field requires using a model in which con ...
... number, and the evolution with scale factor a is as expected from flux conservation. This tiny value is a consequence of the conformal invariance of the abelian vector field lagrangian density and the background spacetime. To generate a large enough magnetic field requires using a model in which con ...
Trends in Optical Fiber Sensors - IEEE Bombay Section Symposium
... noise, leading to lower precision, but are simple and inexpensive systems. ...
... noise, leading to lower precision, but are simple and inexpensive systems. ...
Optical and Magnetic Properties of Copper(II) compounds.
... measurements, in this case, yield not only information about the geometric structure of the active site under investigation but are also sensitive to the details of its electronic structure, thus providing an experimental means of studying the electronic contribution to reactivity of copper systems. ...
... measurements, in this case, yield not only information about the geometric structure of the active site under investigation but are also sensitive to the details of its electronic structure, thus providing an experimental means of studying the electronic contribution to reactivity of copper systems. ...
vapor liquid - UPB Sci Bull
... transitions are strongly influenced by the anchoring conditions of the molecules of the liquid crystal to the solid walls of the cell. Using an analytical method based on the Euler-Lagrange equations and considering that the surface anchoring energy of the liquid crystal-wall interface is described ...
... transitions are strongly influenced by the anchoring conditions of the molecules of the liquid crystal to the solid walls of the cell. Using an analytical method based on the Euler-Lagrange equations and considering that the surface anchoring energy of the liquid crystal-wall interface is described ...
7_SNOM
... This expression of the electric field is general: no approximations have been used until now u and v are spatial frequencies w introduces a decaying exponential in the expression of the Field vs z ...
... This expression of the electric field is general: no approximations have been used until now u and v are spatial frequencies w introduces a decaying exponential in the expression of the Field vs z ...
A method for controlling the bandwidth of high-energy, few
... as a consequence of laser-beam collimation. Furthermore, long absorption paths can be analyzed using multiple back-and-forth reflections inside multiple-path absorption cells. Finally, it is possible to tune the laser wavelength very fast over the whole spectral region to match the molecular absorpt ...
... as a consequence of laser-beam collimation. Furthermore, long absorption paths can be analyzed using multiple back-and-forth reflections inside multiple-path absorption cells. Finally, it is possible to tune the laser wavelength very fast over the whole spectral region to match the molecular absorpt ...
Fiber Optic Communications
... measurement purposes on short fibers. – Cutoff wavelength is the minimum propagation wavelength that can be transmitted. – Mode-field diameter (output spot size) is approximately the core diameter for multimode fibers. ...
... measurement purposes on short fibers. – Cutoff wavelength is the minimum propagation wavelength that can be transmitted. – Mode-field diameter (output spot size) is approximately the core diameter for multimode fibers. ...
Power Point file
... If boundary conditions do not lead to coupling between field components, mode solution will imply either Ez =0 or Hz =0. This is what happens in metallic waveguides. When Ez =0, modes are called transverse electric or TE modes When Hz =0, modes are called transverse magnetic or TM modes ...
... If boundary conditions do not lead to coupling between field components, mode solution will imply either Ez =0 or Hz =0. This is what happens in metallic waveguides. When Ez =0, modes are called transverse electric or TE modes When Hz =0, modes are called transverse magnetic or TM modes ...
CfE Advanced Higher Physics – Unit 2 – Waves
... Graph of Force against displacement for SHM F = - kx F is the restoring force (N) k is the force constant (N m-1) x is the displacement (m) The negative sign shows the direction of vector F is always opposite to vector x. If we apply Newton’s Second Law in this situation the following alternative de ...
... Graph of Force against displacement for SHM F = - kx F is the restoring force (N) k is the force constant (N m-1) x is the displacement (m) The negative sign shows the direction of vector F is always opposite to vector x. If we apply Newton’s Second Law in this situation the following alternative de ...
