Emission spectra of avalanching n(+)p junctions manufactured in a standard CMOS technology with no process modifications were measured over a broad photon energy spectrum ranging from 0.8 eV to 2.8 eV at various temperatures. The temperature coefficients of the emission rates at different photon energies were determined. Below a photon energy of 1.35 eV the temperature coefficient of emission w...

In this article, the temperature behavior of output power of superluminescent light-emitting diode (SLED) by considering the effect of non-radiative recombination coefficient, non-radiative spontaneous emission coefficient and Auger recombination coefficients has been investigated. For this aim, GaN pyramidal quantum dots were used as the active region. The numerical method has been used to sol...

bhw = line half-width, Å E = radiative energy, W Eabs = radiative energy absorbed by cell, W Ebundle = radiative energy carried by photon bundle, W Eemis = emission energy, W Etrans = transmitted radiative energy, W Kn;1 = freestream Knudsen number, dimensionless k, k1, k2 = line-center index, dimensionless L = nose radius of the Stardust blunt body, m l1;2 = ratio between face endpoints, m Nra...

The secondary electron emission coefficient from several elements in the form of thin foils has been measured using 70 MeV electrons as bombarding particles. Using foils with different atomic numbers, it was found that the secondary emission coefficient per target electron in the metal is noticeably larger for light elements, especially in cases of beryllium and aluminum. This indicates that me...

An equation for photons containing a frequency drift term modeling the Doppler effects and an emission absorption coefficient is considered. On the one hand, this frequency drift term involves a coefficient κ relative to the fluid velocity with which the photons interact. This coefficient may vanish, leading to numerical difficulties. On the second hand, the emission absorption σ is known to be...

ZnS12xTex (0.022) isoelectronic centers. The pressure coefficients of the emission bands ar...

Considering the environmental damage caused by mercury, evaluating mercury concentrations in four environmental media, namely the atmosphere, water, soil, and sediment, is necessary. Available data on mercury emissions and computational modeling were used for this evaluation. Evaluating the sensitivity of the model for the water-sediment partition coefficient was another objective of this study...