Light-emitting Diodes (LEDs)Laser Diodes (LDs)Since several years now,photonic technology is considered for communication and monitoring application in spaceborne systems. A major problem which arises when dealing with space environment is the ionizing radiation. This paper discusses radiation effects of...
et al. White-light filaments for atmospheric analysis. Science 301, 61–64 (2003). Article ADS Google Scholar Fuji, T. et al. Leader effects on femtosecond-laser-triggered discharges. Phys. Plasma 15, 013107 (2008). Article ADS Google Scholar Wolf, J.-P. Short-pulse lasers for ...
Radio waves, microwaves, visible light, and x rays are all examples of electromagnetic waves. 无线电波、微波、可见光、X射线都是电磁波。 LIGHTING AND NON-IONIZING RADIATION 照明和非电离辐射 As with sound energy, Electromagnetic Radiation can be described in terms of its frequency (or wavelength) ...
where D(v; T) is the probability density of Ps with velocity v and temperature T (the Maxwell–Boltzmann distribution function is used); IS is the saturation intensity at the 1S–2P transition angular frequency ωeg; I(v; ωR) is the light intensity at the angular frequency resonant to ...
Light is generated when the electrons in the conduction band recombine with holes in the valance band. This process of recombination is the central mechanism in a laser diode (LD) as shown in Fig. 1. The wavelength of the emitted laser light depends on the energy gap between these two ...
“Our starting point is the radiation of an infrared laser system. It was developed at our Institute and it is unique in the world,” Gollner said. First, the laser light is sent through a nonlinear medium. In this material, the infrared radiation is modified; part of it is converted int...
these wavelengths of light are outside the range of visible light that can be detected with the human eye. However, with the use of appropriate receptors, internal abnormalities in dentition such as caries can be detected with NIR trans-illumination of the teeth without using ionizing radiation....
This energy is intensified through stimulated emission, not to be confused with harmful radiation. Laser light color is identified by its wavelength, typically measured in nanometers, with one billion nanometers in a meter. Laser light covers nonionizing wavelengths from ultraviolet (100 – 400nm)...
The vast majority relapse locally indicating that their cure is dependent on radical and complete local excision. However, their ability to invade and hide among normal brain tissue, our inability to visualize and detect them, the low tolerance of brain tissue to ionizing radiation and the ...
Who discovered refraction of light? Who discovered plutonium? Who discovered quantum teleportation? Who discovered infrared rays? What is laser shifting technology? Who discovered electromagnetic radiation? Who first applied X-ray beam collimation?