LEDs have lots of advantages in size, efficiency, lifetime, and low operating temperature. LEDs have been used for medical treatments but red-colored visible LEDs have been mainly used therein before the multi-color LED chip-on-board technologies become widely available. UV-LEDs now have wider ...
40.Quenching of the red Mn4+ luminescence in Mn4+-doped fluoride LED phosphors(发表日期: MAY 2018,被引频次: 141); 41.Bifunctional gap-plasmon metasurfaces for visible light: polarization-controlled unidirectional surface plasmon excitation and beam steering at normal incidence(发表日期: ...
Ultra violet lightsare designed to emit ultraviolet radiation, a form of electromagnetic radiation, with wavelengths in the ultraviolet (UV) range, which is shorter than visible light, although longer than x-rays. What are Ultra Violet Lights? Ultra violet lights are designed to mimic ultraviolet ...
Light source As a light-based technique, a steady source able to emit light across a wide range of wavelengths is essential. A single xenon lamp is commonly used as a high intensity light source for both UV and visible ranges. Xenon lamps are, however, associated with ...
Azobenzene (Azo) is well known for its isomeric structures, which can be switched between thetransand thecisform by using alternate irradiation with UV and visible light or heating21,22. Such a switchable property makes distinct changes to its geometry: (i) the molecular length is shortened fro...
TiO2 have three polymorphs: anatase, rutile and brookite, but only anatase and rutile crystal forms have been useful as pigment. Both anatase and rutile crystals have very high refractive indices, and their particles can scatter visible light almost completely [1]. The optimum particle size of ...
paves the way toward a new generation of UV coatings for high-power laser applications. The demand for laser-resistant mirror coatings is increasing in inertial confinement fusion (ICF)1, extreme light infrastructure2and other laser applications3,4,5,6. An ideal ultraviolet (UV) laser mirror (...
In Park et al.’s research, they measured the photo response over visible and UV light [61]. Experimental results are shown in Figure 13. When the transistor was exposed to UV light, the drain current increased obviously due to the photo-induced charge carriers. Figure 13 (a) Open in ...
and the necessity to utilized solar irradiation (or visible-light) as driving force for these processes, it is not yet clear how to get there. Discussion on the future steps towards visible-light photocatalysis for environmental application is of great interest to scientific and industrial ...
Unlike conventional laser-based methods, diffraction-based pattern images can be easily and quickly obtained using visible light. Furthermore, we demonstrate using the birefringence pattern generated by the random wrinkle physical unclonable function (rw-PUF) as a highly secure authentication key. The ...