A spectroscopic study of the Ga–Hg excimer has been carried out for the first time. The vapor mixture excited by a RF discharge shows emission bands with an intensity maximum at 5020 . The density of Hg in this study was in the range of 1018–1019 atoms/cc and that of Ga about 1011...
The overlapping continua form an almost continuous spectrum of emission in the visible spectral range. The results of calculations well agree with the experimental data. It is established that the discharge under consideration is an effective, mercury-free source of light with a color rendering index...
electromagnetic spectrum The electromagnetic spectrum can be measured in frequencies or in wavelengths. This diagram measures wavelengths in meters, ranging from the longest wavelengths (radio waves) to the shortest (gamma rays). Visible light, which is a band of colors from red to violet, is the...
Mercury-free arc tube unit for discharge lamps, comprises buffer metal halide with emission spectrum in visible range and rare gas enclosed in closed glass... Mercury-free arc tube unit for discharge lamps, comprises buffer metal halide with emission spectrum in visible range and rare gas ...
To assess its fluorescence properties, AzoPNMe2was synthesized utilizing the reported method68. The fluorescence spectrum of this substance in DMSO at room temperature contains only a weak emission band at 475 nm (Supplementary Fig.1). We speculate that the low fluorescence of AzoPNMe2is associa...
The absorption coefficient of gaseous ozone has been measured for the mercury lines at 2537, 2894, 2967, 3021, 3342, and 5770 , by measuring the optical absorption and the pressure as the ozone decays in a sealed quartz absorption tube. This avoids the chemical determination of the ozone. Th...
Figure 1. (a) Visible/NIR spectrum of a wood-burning fire. The black line indicates the wood fire spectrum and shows strong line emission from potassium near 770 nm. The spectra of two common artificial light sources are shown for comparison. The olive curve shows the spectrum from a high...
Much of the radiant flux produced by incandescence emerges as infrared radiation at wavelengths longer than those visible; this is not true of fluorescent light, which is more efficiently produced, accounting for its widespread use. This light results from the electrical energizing ofmercury vapor, ...
Each spectrograph is calibrated in the factory using a series of emission lines from deuterium, zinc, argon and mercury lamps to obtain a calibration curve that relates each diode to a particular wavelength. The calibration parameters of this curve are stored within the ROM memory of each ...
Space astronomy 1 Introduction The discovery of over a thousand exoplanets has revealed an unexpectedly diverse planet population. We see gas giants in few-day orbits, whole multi-planet systems within the orbit of Mercury, and new populations of planets with masses between that of the Earth and...