The vectorial properties of the generated ultraviolet waveband vector beams are characterized in both theoretical and experimental environments. The proposed method paves the way for the generation of extreme ultraviolet vector beams with solid-state nonlinear crystal, which is a more compact and ...
The wavelength is the length, in meters, of one full cycle of the wave. It can be measured as the distance between two consecutive crests or troughs. Next, we have the period, which is the time, in seconds, that it takes for one full wave cycle to pass a particular poin...
a.The entire range over which some measurable property of a physical system or phenomenon can vary, such as the frequency of sound, the wavelength of electromagnetic radiation, or the mass of specific kinds of particles. b.A specific portion of such a range:the infrared spectrum. ...
Recently, we have tried to develop a continuous wave (CW), tunable, and ultraviolet (UV) coherent light source through sum-frequency generation (SFG) using a BBO nonlinear crystal with a two-stage frequency-conversion system using two different external cavities for ...
It can be inferred that after ultraviolet light irradiation, the free carrier concentration in the cesium doped tungsten oxide system increases, and the absorption edge frequency of the plasma moves toward the short-wave high-frequency direction, and finally, under the combined action of light absorp...
This type of indefinite permittivity has also been observed in graphite at ultraviolet frequencies [69]. Graphite is essentially the simplest of the van der Waals crystals. Each layer is in the form of a hexagonal network of carbon atoms, with weak van der Waals coupling between the layers. ...
(matrix isolation); electronic energy states in semiconductors and superconductors; studies of biological molecules and membranes (effects of hydrogen bonding); and analysis of energy levels in laser systems. Double-resonance techniques, in which molecules are excited by an intense pulse of ultraviolet,...
Visible light, the range of the em spectrum that human eyes can detect, occurs between 400 THz and 700 THz. Just outside of the visible range on the red end is the Infrared range, and just outside on the violet end is the ultraviolet range. There is not a sharp boundary, just as ...
UV has a smaller wavelength than visible light. The electromagnetic spectrum is divided into different “bands” depending on wavelength - ultraviolet light is the shortest, while infrared light is the longest. The term “visible light” refers to the part of the spectrum that the human eye can...
We report a single-longitudinal-mode continuous-wave Ti:sapphire ring laser that is intracavity frequency doubled in periodically poled lithium niobate (PPLN). Using a multi-grating PPLN crystal, the second harmonic is tunable from 386 to 403nm – close to the PPLN ultraviolet absorption edge –...