As light source either a “green” laser or a blue or white light emitting LED is used. In case of using a LED an achromat is used to form an almost parallel beam. By means of a polarisation analyser and the photodetector the intensity of the light source as function of the analyser a...
As light source either a “green” laser or a blue or white light emitting LED is used. In case of using a LED an achromat is used to form an almost parallel beam. By means of a polarisation analyser and the photodetector the intensity of the light source as function of the analyser a...
As light source either a “green” laser or a blue or white light emitting LED is used. In case of using a LED an achromat is used to form an almost parallel beam. By means of a polarisation analyser and the photodetector the intensity of the light source as function of the analyser a...
This solution is applied to calculate the fields of a radially polarized Laguerre–Gaussian laser beam. It shows that although both formalisms are correct ways of finding electromagnetic solutions, as the beam waist size is less than a laser wavelength, the longitudinal electric field near the ...
and the wave vector of light, the refractive index of the material depends on the angle between the wave vector and the optical axis—nematic director field. Hence by rotating the nematic director field, optical properties of the material for a selected polarization (i.e. extraordinary beam) ar...
Analytically vectorial structure of an apertured Laguerre–Gaussian beam in the far-field Based on the angular spectrum representation of an arbitrary electromagnetic beam and the method of stationary phase, an analytically vectorial structure o... G Zhou - 《Optics Communications》 被引量: 11发表:...
We demonstrated a new method of Terahertz cylindrical vector beam generation using segmented nonlinear crystals with three-fold rotational symmetry. The po... R Imai,N Kanda,K Konishi,... - International Conference on Infrared 被引量: 31发表: 2012年 Dipolar polarization and piezoelectricity of a ...
A quantum effect in which two indistinguishable photons, incident on a 50/50 beamsplitter, never appear in different output ports of the beamsplitter, owing to quantum interference. Lamb shifts Shifts in the energy levels of a quantum emitter, due to virtual absorption and re-emission of photons...
brilliantly achieves the replication of a single incoming beam into numerous beams, each with an equal intensity [10]. In essence, it mirrors the process of exit pupil expansion (EPE). Within the domain of display technology, this concept manifests itself splendidly in edge-lit liquid crystal ...
FTIR utilizes infrared light as the probing beam and enjoys the advantages of being a fast, reliable, and safer technique (as compared to XRD and XRF that utilize X-rays as probe beam). FTIR was originally developed for characterization of organic matters but now a great deal of inorganic ma...