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Diffusing-wave spectroscopy: dynamic light scattering in the
... the scattered light when the sample dimensions are greater than f* and the distance that protons travel through the sample is much greater than l*. Two theoretical approaches have been used to describe the fluctuations in the scattered electric field. The first approach starts from the wave equation ...
... the scattered light when the sample dimensions are greater than f* and the distance that protons travel through the sample is much greater than l*. Two theoretical approaches have been used to describe the fluctuations in the scattered electric field. The first approach starts from the wave equation ...
Characterization of the citrate precursor, used for
... coordination number of six for iron(III) satisfied by two citrate ligands which bind to iron through the oxygen atoms of the carboxylate groups [5,6]. The values of Mössbauer parameters for sample “Precursor” are close to those cited for complexes of magnesium bis(citrate) ferrate(III) decahydratean ...
... coordination number of six for iron(III) satisfied by two citrate ligands which bind to iron through the oxygen atoms of the carboxylate groups [5,6]. The values of Mössbauer parameters for sample “Precursor” are close to those cited for complexes of magnesium bis(citrate) ferrate(III) decahydratean ...
PDF
... slow and allows one to image only stationary director patterns. Another possibility is electro-optical polarization rotator. We equipped the microscope with an achromatic switchable polarization rotator based on a twisted nematic (TN) cell. The achromatic polarization rotator allows one to change th ...
... slow and allows one to image only stationary director patterns. Another possibility is electro-optical polarization rotator. We equipped the microscope with an achromatic switchable polarization rotator based on a twisted nematic (TN) cell. The achromatic polarization rotator allows one to change th ...
Helium Neon Laser - Educational Lasers
... The basics of gas lasers like resonator types and stability, coherence and mode behavior are shown in practice with this open-frame gas laser and are discussed in the comprehensive manual. By variation of the resonator mirrors (the set comprises 5 mirrors) the resonator properties and its influences ...
... The basics of gas lasers like resonator types and stability, coherence and mode behavior are shown in practice with this open-frame gas laser and are discussed in the comprehensive manual. By variation of the resonator mirrors (the set comprises 5 mirrors) the resonator properties and its influences ...
Fabry-Perot Interferometer FABRYPEROT.TEX KB 20020122
... The transfer function shows high transmission when certain conditions for the wavelength of the light and the plate geometry are fulfilled, otherwise the light is more or less blocked. These conditions can be adjusted by changing the wavelength and/or the geometry. Thus Fabry-Perot plates can be use ...
... The transfer function shows high transmission when certain conditions for the wavelength of the light and the plate geometry are fulfilled, otherwise the light is more or less blocked. These conditions can be adjusted by changing the wavelength and/or the geometry. Thus Fabry-Perot plates can be use ...
100G EPON Laser Safety Issues
... fiber optic telecommunications equipment and the like. Federal law requires that laser products comply with the laser safety requirements of the Center for Devices and Radiological Health (CDRH), a division of the Food and Drug Administration (FDA). Laser safety requirements are contained in 21CFR P ...
... fiber optic telecommunications equipment and the like. Federal law requires that laser products comply with the laser safety requirements of the Center for Devices and Radiological Health (CDRH), a division of the Food and Drug Administration (FDA). Laser safety requirements are contained in 21CFR P ...
Rodrigo Aviles‐Espinosa STRATEGIES FOR PUSHING NONLINEAR MICROSCOPY TOWARDS ITS PERFORMANCE LIMITS
... fluorescence (TPEF) imaging of one the most widely used fluorescent markers in bioimaging research: the green fluorescent protein. The system operating parameters and its emission wavelength enables to demonstrate how matching the employed fluorescent marker two-photon action cross-section is crucia ...
... fluorescence (TPEF) imaging of one the most widely used fluorescent markers in bioimaging research: the green fluorescent protein. The system operating parameters and its emission wavelength enables to demonstrate how matching the employed fluorescent marker two-photon action cross-section is crucia ...
Helium Neon Laser - Abbe School of Photonics
... A helium-neon laser is a gas laser, consisting of a mixture of helium and neon gas in a ratio between 5:1 and 20:1 bound in a glass tube. The pump energy of the laser is provided by an electrical discharge of several hundred Volts between an anode and cathode at each end of the glass tube. A current ...
... A helium-neon laser is a gas laser, consisting of a mixture of helium and neon gas in a ratio between 5:1 and 20:1 bound in a glass tube. The pump energy of the laser is provided by an electrical discharge of several hundred Volts between an anode and cathode at each end of the glass tube. A current ...
Noise-related resolution limit of dispersion measurements with white
... Spectral resolution, the accuracy of GDD determination, and the measurement time are the key parameters of every dispersion measurement. As with any Fourier spectrometer, the spectral resolution is determined by the inverse of the total scanning range (or time delay) over which data are recorded. Th ...
... Spectral resolution, the accuracy of GDD determination, and the measurement time are the key parameters of every dispersion measurement. As with any Fourier spectrometer, the spectral resolution is determined by the inverse of the total scanning range (or time delay) over which data are recorded. Th ...
Calibration of the amplification coefficient in
... for even the most demanding applications in surface topography measurement [3]. In interference microscopy, the common practice is to calibrate the amplification coefficient by means of a material measure in the form of a physical artifact, most often a step height standard (SHS) such as chrome-coat ...
... for even the most demanding applications in surface topography measurement [3]. In interference microscopy, the common practice is to calibrate the amplification coefficient by means of a material measure in the form of a physical artifact, most often a step height standard (SHS) such as chrome-coat ...
INTRODUCTION:
... of refraction n1 throughout its bulk and a sudden transition of index to a lower value at the core wall. Graded index profile: In this type of fiber, the material in the core is modified so that the index of refraction has a maximum value n1 at the axis and lesser values falling off according to a ...
... of refraction n1 throughout its bulk and a sudden transition of index to a lower value at the core wall. Graded index profile: In this type of fiber, the material in the core is modified so that the index of refraction has a maximum value n1 at the axis and lesser values falling off according to a ...
Get PDF - OSA Publishing
... One application is the possibility of generating pulling forces. Situations giving pulling forces for spheres in non-diffracting Bessel beams have been computed in acoustics [6–10] and in optics [11–13]. It was noticed early [6–8] that acoustical situations predicting to give negative forces corres ...
... One application is the possibility of generating pulling forces. Situations giving pulling forces for spheres in non-diffracting Bessel beams have been computed in acoustics [6–10] and in optics [11–13]. It was noticed early [6–8] that acoustical situations predicting to give negative forces corres ...
optical design of an echelle grating based atomic emission
... lamps. This data is then utilized for assigning the exact wavelengths and their diffraction orders corresponding to other emission lines covering the entire area of the detector. Figure 2 shows the emission spectra of the element Tungsten as recorded by the echelle spectrometer. The grating dispersi ...
... lamps. This data is then utilized for assigning the exact wavelengths and their diffraction orders corresponding to other emission lines covering the entire area of the detector. Figure 2 shows the emission spectra of the element Tungsten as recorded by the echelle spectrometer. The grating dispersi ...
Far-field optical microscope with nanometer-scale
... introduced by Abbe in the 19th century have slightly improved resolution on the order ...
... introduced by Abbe in the 19th century have slightly improved resolution on the order ...
Combining Photonic Crystal and Optical Monte
... with θ-values larger than 90◦ corresponding to photons that impinge on the PhC from the optical glue side instead of the scintillator side. Due to the symmetry of the PhC, the azimuth angle φ was varied from 0◦ to 30◦ for hexagonal and from 0◦ to 45◦ for orthogonal PhC gratings. For each pair of θ a ...
... with θ-values larger than 90◦ corresponding to photons that impinge on the PhC from the optical glue side instead of the scintillator side. Due to the symmetry of the PhC, the azimuth angle φ was varied from 0◦ to 30◦ for hexagonal and from 0◦ to 45◦ for orthogonal PhC gratings. For each pair of θ a ...
The Balmer Lines of Hydrogen and Deuterium
... Again, m is the diffraction order and N is the groove density, as in equation (7). The slits are adjustable in the range 10 – 3000 μm. Wide slit settings let in more light, increasing sensitivity to faint lines. Wide slit settings are also very useful to reduce the spectrum resolution so that larger ...
... Again, m is the diffraction order and N is the groove density, as in equation (7). The slits are adjustable in the range 10 – 3000 μm. Wide slit settings let in more light, increasing sensitivity to faint lines. Wide slit settings are also very useful to reduce the spectrum resolution so that larger ...
Rayleigh Scattering
... Assume an imaging Rayleigh measurement where 1) the temperature is 300 K in measurement point A. 2)) the signal g is a factor of five stronger g in A than in B. Then we can calculate the temperature in point B: ...
... Assume an imaging Rayleigh measurement where 1) the temperature is 300 K in measurement point A. 2)) the signal g is a factor of five stronger g in A than in B. Then we can calculate the temperature in point B: ...
Diode Laser Characteristics
... population inversion is restricted to a narrow stripe in the active layer, so the laser’s optical gain is spatially localized (gain is the amount that an optical wave is amplified by stimulated emission as it passes through the laser cavity). The diode heterostructure also serves as an optical wavegu ...
... population inversion is restricted to a narrow stripe in the active layer, so the laser’s optical gain is spatially localized (gain is the amount that an optical wave is amplified by stimulated emission as it passes through the laser cavity). The diode heterostructure also serves as an optical wavegu ...
Final Report DURIP AFOSR Grant FA9550-06-1
... or perpendicular polarization of the laser beam, a 6 cm diameter and 15 cm focal length lens with an anti reflection coating, and a 5 cm diameter fused silica window. These are special optics designed to work with 99% transparency at 193 nm. The chamber pressure is varied in the range of 90 Torr to ...
... or perpendicular polarization of the laser beam, a 6 cm diameter and 15 cm focal length lens with an anti reflection coating, and a 5 cm diameter fused silica window. These are special optics designed to work with 99% transparency at 193 nm. The chamber pressure is varied in the range of 90 Torr to ...
Synchronization of Micromechanical Oscillators Using Light
... of figure 2a. As light interacts with the R OMO above its oscillation threshold, it excites the OMO to a regenerative oscillation mode which in turn induces modulation of the light at its mechanical frequency ΩR . When light tunnels through the gap to interact with the L OMO, it forces the left cavi ...
... of figure 2a. As light interacts with the R OMO above its oscillation threshold, it excites the OMO to a regenerative oscillation mode which in turn induces modulation of the light at its mechanical frequency ΩR . When light tunnels through the gap to interact with the L OMO, it forces the left cavi ...
Measurement considerations when specifying
... The challenges outlined above can be addressed by adding an integrating sphere to the detector, using thin witness samples, and decreasing the distance from the sample to the detector. Larger integrating spheres typically achieve better results because of averaging of light over many bounces within ...
... The challenges outlined above can be addressed by adding an integrating sphere to the detector, using thin witness samples, and decreasing the distance from the sample to the detector. Larger integrating spheres typically achieve better results because of averaging of light over many bounces within ...
Radiative Transfer Theory - UCL Department of Geography
... Note that the single scattering albedo for leaves is not always low. This is particularly true in the near infrared. In this case, we still need to account for further orders of scattering. The iterative method used above for the microwave case is not directly appropriate, but a range of methods exi ...
... Note that the single scattering albedo for leaves is not always low. This is particularly true in the near infrared. In this case, we still need to account for further orders of scattering. The iterative method used above for the microwave case is not directly appropriate, but a range of methods exi ...
Fundamental Limits in Confocal Microscopy
... not absolute; after all, most of us will view the final result as some sort of image. However, the distinction is still useful because it requires one to explicitly confront many problems that are not always so obvious when microscope images are viewed directly by eye or after photographic recording ...
... not absolute; after all, most of us will view the final result as some sort of image. However, the distinction is still useful because it requires one to explicitly confront many problems that are not always so obvious when microscope images are viewed directly by eye or after photographic recording ...
Advanced Kinetic Analysis Using a LAMBDA Series Spectrometer
... When you select “Total Range” or “Fixed Range” the software will always calculate the enzyme activity in the defined time range, just as routine users in clinical chemistry or simple biochemical applications need it. The “Total Range” mode will evaluate the curve over the total, selected time range ...
... When you select “Total Range” or “Fixed Range” the software will always calculate the enzyme activity in the defined time range, just as routine users in clinical chemistry or simple biochemical applications need it. The “Total Range” mode will evaluate the curve over the total, selected time range ...
Imaging with Terahertz Pulses
... for non-invasive testing, including the detection of faults or delaminations in packaged integrated circuits and the location of air bubbles or cracks within polymer or ceramic parts.5,6 In many of these applications, the feature we wish to detect is subtle, in the sense that its interaction with th ...
... for non-invasive testing, including the detection of faults or delaminations in packaged integrated circuits and the location of air bubbles or cracks within polymer or ceramic parts.5,6 In many of these applications, the feature we wish to detect is subtle, in the sense that its interaction with th ...