Astonish TF - Philips InCenter
... clinical workflow performance analysis, the new Astonish TF technology reconstructs entire images as much as 5 times faster on average than existing Generation 2 systems, and as much as 20 times faster than Generation 1 systems. Figure 10 shows the behavior of the different generations of the Philip ...
... clinical workflow performance analysis, the new Astonish TF technology reconstructs entire images as much as 5 times faster on average than existing Generation 2 systems, and as much as 20 times faster than Generation 1 systems. Figure 10 shows the behavior of the different generations of the Philip ...
HERCULES_Neutron_reflectivity
... In the TOF mode, the neutron wavelengths are determined by recording the arrival time of each neutron at the detector relative to the start of each pulse, with shorter wavelengths arriving first and corresponding to high values of q. On steady state reactor beams, a pair of mechanical choppers is us ...
... In the TOF mode, the neutron wavelengths are determined by recording the arrival time of each neutron at the detector relative to the start of each pulse, with shorter wavelengths arriving first and corresponding to high values of q. On steady state reactor beams, a pair of mechanical choppers is us ...
Electromagnetic Boundary Conditions
... "bound" (distributed dipole, bulk-neutral matter distributions) . These latter involve the macroscopic effects of the polarization properties of matter, expressed by numerical parameters which are frequency dependent in general, and temperature dependent in some cases. These parameters are simple sc ...
... "bound" (distributed dipole, bulk-neutral matter distributions) . These latter involve the macroscopic effects of the polarization properties of matter, expressed by numerical parameters which are frequency dependent in general, and temperature dependent in some cases. These parameters are simple sc ...
Sample pages 1 PDF
... 10−6 = 1.25 × 10−28 N s per photon, not of any great significance until one considers the avalanche of photons possible with the laser. The energy of a photon from a CO2 laser is given as 1.85×10−20 J in Table 2.1, where it is compared with the energy of photons from other optical generators. Thus, i ...
... 10−6 = 1.25 × 10−28 N s per photon, not of any great significance until one considers the avalanche of photons possible with the laser. The energy of a photon from a CO2 laser is given as 1.85×10−20 J in Table 2.1, where it is compared with the energy of photons from other optical generators. Thus, i ...
On the small-angle X-ray scattering of rigid-rod
... axis or, as Vonk suggests 34, when the crystals become narrow and randomly correlated. Crystals may appear tilted from the fibre axis because of growth conditions or as a result of shear between crystalline and non-crystalline regions. The physical model shown in Figure 5a, which is along the lines ...
... axis or, as Vonk suggests 34, when the crystals become narrow and randomly correlated. Crystals may appear tilted from the fibre axis because of growth conditions or as a result of shear between crystalline and non-crystalline regions. The physical model shown in Figure 5a, which is along the lines ...
Total Internal Reflection Fluorescence
... Total internal reflection occurs when the excitation light impinges on the glass coverslipsolution interface at an angle higher than the critical angle (see Background Information). In order for the entire field of view to be in TIR, all of the incoming light needs to be above this critical angle. I ...
... Total internal reflection occurs when the excitation light impinges on the glass coverslipsolution interface at an angle higher than the critical angle (see Background Information). In order for the entire field of view to be in TIR, all of the incoming light needs to be above this critical angle. I ...
Downloaded
... Fig. 1 shows reflection spectra RðkÞ of the photonic crystal and the Au/PC sample measured at h ¼ 30 . Photonic band-gap (PBG) is seen for PC between 700 nm and 950 nm. Transmittance inside the PBG is relatively high being approximately equal to 0.1 indicating notable light transit through photonic ...
... Fig. 1 shows reflection spectra RðkÞ of the photonic crystal and the Au/PC sample measured at h ¼ 30 . Photonic band-gap (PBG) is seen for PC between 700 nm and 950 nm. Transmittance inside the PBG is relatively high being approximately equal to 0.1 indicating notable light transit through photonic ...
Resolution scaling in STED microscopy
... dark and bright states, to achieve such resolutions have since been demonstrated [8-13]. At the same time, STED has been applied to a multitude of imaging tasks [14-17] mainly in biology and more recently, STED microscopes have become commercially available. The resolution achieved by such a far-fie ...
... dark and bright states, to achieve such resolutions have since been demonstrated [8-13]. At the same time, STED has been applied to a multitude of imaging tasks [14-17] mainly in biology and more recently, STED microscopes have become commercially available. The resolution achieved by such a far-fie ...
OM1 - Faculty of Engineering
... reflected by the beam splitter. Thus, the two beams are brought together to form interference fringes. Since one beam passes through BS 3 times, a compensating plate C is required for another beam so that both beams pass through equal thickness of glass. The inclusion of a compensating plate negates ...
... reflected by the beam splitter. Thus, the two beams are brought together to form interference fringes. Since one beam passes through BS 3 times, a compensating plate C is required for another beam so that both beams pass through equal thickness of glass. The inclusion of a compensating plate negates ...
Acousto-Optic Devices and Applications
... These devices have been used in optical systems for light-beam control and signalprocessing applications. Historically, the diffraction of light by acoustic waves was first predicted by Brillouin1 in 1922. Ten years later, Debye and Sears2 and Lucas and Biquard3 experimentally observed the effect. I ...
... These devices have been used in optical systems for light-beam control and signalprocessing applications. Historically, the diffraction of light by acoustic waves was first predicted by Brillouin1 in 1922. Ten years later, Debye and Sears2 and Lucas and Biquard3 experimentally observed the effect. I ...
Multi-photon absorption and third-order
... lengths in the sample for three-photon absorption (3PA) and four-photon absorption (4PA) are given as Leff′ = [1-exp(−2α0L)]/2α0 and Leff′′ = [1-exp(−3α0L)]/3α0 respectively. To clarify, the α0 is the linear absorption coefficient with wavelength dispersion, which is negligibly small at mid-IR wavel ...
... lengths in the sample for three-photon absorption (3PA) and four-photon absorption (4PA) are given as Leff′ = [1-exp(−2α0L)]/2α0 and Leff′′ = [1-exp(−3α0L)]/3α0 respectively. To clarify, the α0 is the linear absorption coefficient with wavelength dispersion, which is negligibly small at mid-IR wavel ...
Crystal Properties and Growth of Semiconductors
... semiconductors compared with other solids, the atomic arrangements of various materials, and some methods of growing semiconductor crystals. Topics such as crystal structure and crystal growth technology are often the subjects of books rather than introductory chapters; thus we shall consider only a ...
... semiconductors compared with other solids, the atomic arrangements of various materials, and some methods of growing semiconductor crystals. Topics such as crystal structure and crystal growth technology are often the subjects of books rather than introductory chapters; thus we shall consider only a ...
Single-shot measurement of a 52 fs pulse
... temporal shape of the pulse into a spatial shape which could be analyzed by a spatial detector. A beam splitter produces two replicas of the incident pulse which cross each other in a nonlinear crystal. The image of the crystal at the second harmonic (SH) wavelength is recorded with a linear array o ...
... temporal shape of the pulse into a spatial shape which could be analyzed by a spatial detector. A beam splitter produces two replicas of the incident pulse which cross each other in a nonlinear crystal. The image of the crystal at the second harmonic (SH) wavelength is recorded with a linear array o ...
Microscopes - Photonics Research Group
... for four decades following World War II, the light microscope in many fields took a back seat to the electron microscope. During the last decade, however, the light microscope has reemerged as an indispensable, powerful tool for investigating the submicron world in many fields of application. In bio ...
... for four decades following World War II, the light microscope in many fields took a back seat to the electron microscope. During the last decade, however, the light microscope has reemerged as an indispensable, powerful tool for investigating the submicron world in many fields of application. In bio ...
``Interaction-free`` imaging - Vienna Center for Quantum Science and
... somewhere between the far field and the waist, meaning that this half-beam effect is occurring to some degree. The interpretation of the data is then nontrivial: A full calculation accounting for the double Fresnel edge-diffraction would be necessary. The fourth imaging system was a Mach-Zehnder con ...
... somewhere between the far field and the waist, meaning that this half-beam effect is occurring to some degree. The interpretation of the data is then nontrivial: A full calculation accounting for the double Fresnel edge-diffraction would be necessary. The fourth imaging system was a Mach-Zehnder con ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... hundreds of microns can be successfully held by a beam (or beams) of light. Optical tweezers is a type of optical micro-manipulation and micro-fabrication system. Optical tweezers are scientific instruments that use a highlyfocused laser beam to trap, move and rotate microscopic individual dielectri ...
... hundreds of microns can be successfully held by a beam (or beams) of light. Optical tweezers is a type of optical micro-manipulation and micro-fabrication system. Optical tweezers are scientific instruments that use a highlyfocused laser beam to trap, move and rotate microscopic individual dielectri ...
Gaussian Beam Optics [Hecht Ch. 13.1 pages 594
... the beam for several values of z>>zR. Then fit the data for each z using Eq. (1), which will yield values for w(z). Then one can use Eqs. (3) and (4) to determine w0 and calculate zR. ...
... the beam for several values of z>>zR. Then fit the data for each z using Eq. (1), which will yield values for w(z). Then one can use Eqs. (3) and (4) to determine w0 and calculate zR. ...
fourier2012.pdf
... frequency analysis of images, and for the construction of real time correlators. One property that makes optics an exciting tool for frequency analysis is that, in free-space propogation of light, one can see the effects of lenses and filters on a light beam as the beam propogates through the system ...
... frequency analysis of images, and for the construction of real time correlators. One property that makes optics an exciting tool for frequency analysis is that, in free-space propogation of light, one can see the effects of lenses and filters on a light beam as the beam propogates through the system ...
Absorption-induced trapping in an anisotropic
... working too near or far from a resonance. In a medium consisting of a warm vapor, inhomogeneous Doppler broadening produces linewidths that are typically a factor of 100 larger than the homogeneous linewidth; thus, substantial absorption occurs over a large bandwidth and the atom-photon coupling is ...
... working too near or far from a resonance. In a medium consisting of a warm vapor, inhomogeneous Doppler broadening produces linewidths that are typically a factor of 100 larger than the homogeneous linewidth; thus, substantial absorption occurs over a large bandwidth and the atom-photon coupling is ...
Department of Physics, Technical University Ostrava 17. listopadu
... have confirmed that in contrary to standard spatial-domain white-light interferometry employing dispersion balanced interferometers our measurement techniques are characterized by the range of measurable distances dependent on the amount of dispersion in the interferometer [13–15]. We have also demo ...
... have confirmed that in contrary to standard spatial-domain white-light interferometry employing dispersion balanced interferometers our measurement techniques are characterized by the range of measurable distances dependent on the amount of dispersion in the interferometer [13–15]. We have also demo ...
The Development of Femtosecond Electron Diffraction for
... taking real-time snapshots of transmission electron patterns. The damped single-mode breathing motion of the Al film along the surface normal was recorded as coherent and in-phase oscillations of all the Bragg peak positions. The concurrent lattice heating was measured by tracking the associated Bra ...
... taking real-time snapshots of transmission electron patterns. The damped single-mode breathing motion of the Al film along the surface normal was recorded as coherent and in-phase oscillations of all the Bragg peak positions. The concurrent lattice heating was measured by tracking the associated Bra ...
- Phasics
... temporal10–13 coherence of the laser beam and to improve the focal pattern’s homogeneity. Such smoothed beams, currently planned to be used in the future megajoule-scale ICF facilities, however, still have speckles with local intensities a few times the average intensity. Performing laser–plasma int ...
... temporal10–13 coherence of the laser beam and to improve the focal pattern’s homogeneity. Such smoothed beams, currently planned to be used in the future megajoule-scale ICF facilities, however, still have speckles with local intensities a few times the average intensity. Performing laser–plasma int ...
Document
... Slits of a monochromator are very important for its performance. It may be primitive to say that multiple wavelengths hitting the focal plane can emerge from the exit slit if the exit slit is too wide. On the other hand, a beam of very low power can emerge from the exit slit when the slit is too nar ...
... Slits of a monochromator are very important for its performance. It may be primitive to say that multiple wavelengths hitting the focal plane can emerge from the exit slit if the exit slit is too wide. On the other hand, a beam of very low power can emerge from the exit slit when the slit is too nar ...
Observation of light below Cerenkov threshold in a 1.5 meter long
... as the result obtained using the shock-wave treatment. In both treatments, the Cerenkov light is emitted at a unique angle and only when the condition n fl > 1 is satisfied. A more complete treatment of Cerenkov light emitted in radiators of finite length [3-53 shows that the radiation is not produc ...
... as the result obtained using the shock-wave treatment. In both treatments, the Cerenkov light is emitted at a unique angle and only when the condition n fl > 1 is satisfied. A more complete treatment of Cerenkov light emitted in radiators of finite length [3-53 shows that the radiation is not produc ...
Experimental observation of speckle instability in Kerr random
... from noise, energy from the pump at fp will be preferentially transferred into photons at fm = fp − 1/τN L resulting in the beating of the two beams. In the same way, the spontaneous speckle oscillations observed in our experiment result from the beating between the incident HeNe beam and the nonlin ...
... from noise, energy from the pump at fp will be preferentially transferred into photons at fm = fp − 1/τN L resulting in the beating of the two beams. In the same way, the spontaneous speckle oscillations observed in our experiment result from the beating between the incident HeNe beam and the nonlin ...