TEM - Department of Mechanical Engineering
... To increase the mean free path of the electron gas interaction, a standard TEM is evacuated to low pressures, typically on the order of 10−4 Pa. The need for this is twofold: first the allowance for the voltage difference between the cathode and the ground without generating an arc, and secondly to ...
... To increase the mean free path of the electron gas interaction, a standard TEM is evacuated to low pressures, typically on the order of 10−4 Pa. The need for this is twofold: first the allowance for the voltage difference between the cathode and the ground without generating an arc, and secondly to ...
Polarized Light
... • Nicol prisms are simple, but have disadvantages – relatively small acceptance angle (~28°) – input is not at normal incidence – cemented optics cannot be used with high-power lasers or in the UV ...
... • Nicol prisms are simple, but have disadvantages – relatively small acceptance angle (~28°) – input is not at normal incidence – cemented optics cannot be used with high-power lasers or in the UV ...
Online Photolytic Optical Gating of Caged Fluorophores in Capillary
... The spot size is approximated based on the Gaussian distribution of light within a laser beam. Though the LED used here is non-Gaussian, we have utilized this approximation for simplicity. Window width = 4λF / πD where λ is the detection wavelength (496 nm), F is the focal length of the lens which f ...
... The spot size is approximated based on the Gaussian distribution of light within a laser beam. Though the LED used here is non-Gaussian, we have utilized this approximation for simplicity. Window width = 4λF / πD where λ is the detection wavelength (496 nm), F is the focal length of the lens which f ...
True-False Questions
... conditions (geometric optics). The premise was that light consists of rays that move outward from their source in straight lines as long as they are traveling in a consistent medium (air, water, space, or glass, for example). When a ray of light hits another medium, as when sunlight strikes the surf ...
... conditions (geometric optics). The premise was that light consists of rays that move outward from their source in straight lines as long as they are traveling in a consistent medium (air, water, space, or glass, for example). When a ray of light hits another medium, as when sunlight strikes the surf ...
Review !x
... ! Our first example of the interference of light is Young’s double slit experiment ...
... ! Our first example of the interference of light is Young’s double slit experiment ...
The Microenvironment Effect on the Generation of Reactive Oxygen
... targeted PDT (VTP) of solid tumors, which has recently entered into phase II clinical trials under the code name WST09 (trade name TOOKAD), forms appreciable amounts of hydroxyl radicals, superoxide radicals, and probably hydrogen peroxide in aqueous medium but not in organic solvents where singlet ...
... targeted PDT (VTP) of solid tumors, which has recently entered into phase II clinical trials under the code name WST09 (trade name TOOKAD), forms appreciable amounts of hydroxyl radicals, superoxide radicals, and probably hydrogen peroxide in aqueous medium but not in organic solvents where singlet ...
Two-color cross-correlation in small-angle static light
... two-dimensional ~2D! samples. Theory and experiments show that when a rough surface is illuminated by polychromatic light, the speckle pattern exhibits a radial structure revealing a correlation between speckle fields at different wavelengths. Furthermore, a measure of the intensity crosscorrelation ...
... two-dimensional ~2D! samples. Theory and experiments show that when a rough surface is illuminated by polychromatic light, the speckle pattern exhibits a radial structure revealing a correlation between speckle fields at different wavelengths. Furthermore, a measure of the intensity crosscorrelation ...
Chemically etched fiber tips for near-field optical microscopy:
... which corresponds to etching a bare fiber, shows a structure containing many speckles, which is due essentially to the light leaking along the cone of the tip. Note that this far-field pattern is highly sensitive to leaking light because the interference contrast of the leaking light with the light ...
... which corresponds to etching a bare fiber, shows a structure containing many speckles, which is due essentially to the light leaking along the cone of the tip. Note that this far-field pattern is highly sensitive to leaking light because the interference contrast of the leaking light with the light ...
Department of Physics, Technical University Ostrava 17. listopadu
... 80 µm. As an example, Fig. 2 shows by the dots the recorded spectral interferogram corresponding to the adjusted OPD between beams of the interferometer of approximately −10 µm. By processing the spectral interferogram using the FTM, the background spectrum a(λ), the envelope spectrum b(λ) and the u ...
... 80 µm. As an example, Fig. 2 shows by the dots the recorded spectral interferogram corresponding to the adjusted OPD between beams of the interferometer of approximately −10 µm. By processing the spectral interferogram using the FTM, the background spectrum a(λ), the envelope spectrum b(λ) and the u ...
Phase control of trapped ion quantum gates
... difference frequency δω of the optical sources can be tuned to particular values so that a single stationary term emerges from the above Hamiltonian, and all other couplings can be neglected under the rotating wave approximation. In this regime, as seen from the rest frame of the ions, the applied l ...
... difference frequency δω of the optical sources can be tuned to particular values so that a single stationary term emerges from the above Hamiltonian, and all other couplings can be neglected under the rotating wave approximation. In this regime, as seen from the rest frame of the ions, the applied l ...
Diamond chemical-vapor deposition on optical fibers for
... incorporated during the chemical vapor deposition growth process is also demonstrated. These are critical steps in developing a fiber coupled single-photon source based on optically active defect centers in diamond. © 2005 American Institute of Physics. 关DOI: 10.1063/1.1890484兴 The availability of p ...
... incorporated during the chemical vapor deposition growth process is also demonstrated. These are critical steps in developing a fiber coupled single-photon source based on optically active defect centers in diamond. © 2005 American Institute of Physics. 关DOI: 10.1063/1.1890484兴 The availability of p ...
