Calibration of Optical Tweezers
... Our optical tweezers set-up consists of: a source laser, optical components to guide and refocus the beam, a sample slide with translational stages, a white light source, and a CCD camera and computer for acquiring data. The set-up can be seen in figure 2 at the bottom of the page. A 637nm, 70mW las ...
... Our optical tweezers set-up consists of: a source laser, optical components to guide and refocus the beam, a sample slide with translational stages, a white light source, and a CCD camera and computer for acquiring data. The set-up can be seen in figure 2 at the bottom of the page. A 637nm, 70mW las ...
Through the Looking Glass
... containing the phase information. Any physical process that alters the refractive index in a region of a material will, in turn, alter the phase of any light passing through that region. The trick, of course, is to alter the refractive index in just the right way so that the material scatters the li ...
... containing the phase information. Any physical process that alters the refractive index in a region of a material will, in turn, alter the phase of any light passing through that region. The trick, of course, is to alter the refractive index in just the right way so that the material scatters the li ...
Micro Systems Design GmbH presents - LAS-CAD
... propagation algorithm. For many configurations, end pumped rods for example, this approximation delivers reliable results for the laser mode. ...
... propagation algorithm. For many configurations, end pumped rods for example, this approximation delivers reliable results for the laser mode. ...
Optically Pumped Solid-State Lasers
... absorption bands in a solid result from the line-broadened “smearing” together of levels that would be sharp and distinct in the vapor phase. The vastly increased numbers of neighboring particles in a solid (or liquid) compared to a gas causes large amounts of line broadening, although the extent of ...
... absorption bands in a solid result from the line-broadened “smearing” together of levels that would be sharp and distinct in the vapor phase. The vastly increased numbers of neighboring particles in a solid (or liquid) compared to a gas causes large amounts of line broadening, although the extent of ...
RESONANCE WAVELENGTH DEPENDENCE AND MODE
... antennas, slot antennas, patch antennas, gap antennas) and the dependence of the antenna field enhancement and spectral response on the geometrical parameters have been already deeply discussed [21– 35], also comparing both numerical [33] and experimental [32] results. Moreover, the scattering and a ...
... antennas, slot antennas, patch antennas, gap antennas) and the dependence of the antenna field enhancement and spectral response on the geometrical parameters have been already deeply discussed [21– 35], also comparing both numerical [33] and experimental [32] results. Moreover, the scattering and a ...
Periodically Poled Lithium Niobate (PPLN) - Tutorial
... altered by changing the PPLN temperature or by using PPLN with a different poling period. Nd:YAG pumped OPOs based on PPLN can efficiently produce tunable light at wavelengths between 1.3 and 5µm and can even produce light at longer wavelengths but with lower efficiency. The PPLN OPO can produce out ...
... altered by changing the PPLN temperature or by using PPLN with a different poling period. Nd:YAG pumped OPOs based on PPLN can efficiently produce tunable light at wavelengths between 1.3 and 5µm and can even produce light at longer wavelengths but with lower efficiency. The PPLN OPO can produce out ...
Optical amplifier
An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from the cavity is suppressed. Optical amplifiers are important in optical communication and laser physics.There are several different physical mechanisms that can be used to amplify a light signal, which correspond to the major types of optical amplifiers. In doped fibre amplifiers and bulk lasers, stimulated emission in the amplifier's gain medium causes amplification of incoming light. In semiconductor optical amplifiers (SOAs), electron-hole recombination occurs. In Raman amplifiers, Raman scattering of incoming light with phonons in the lattice of the gain medium produces photons coherent with the incoming photons. Parametric amplifiers use parametric amplification.