High-temperature quasi-continuous operation of optically pumped CdZnTe/ZnTe multiple-quantum-well lasers at 620 nm
Low-lasing-threshold quasi-continuous optically pumped II-VI quantum-well lasers were operated well above room temperature at 620 nm. This result shows promise for high-repetition-rate, short-pulse generation by direct modulation of the injection current and also CW operation of future wide-gap II-VI diode lasers above room temperature.<<ETX>>
Electrical properties of two-source evaporated polycrystalline films
The compositional dependence of electrical properties such as thermoelectric power, carrier concentration and conductivity, of two-source vacuum evaporated polycrystalline thin films were investigated. The temperature dependence of conductivity was studied in the range 100 - 400 K and the films were found to exhibit two activation energies. Analysis of the activation energy in the low-temperature region led to the conclusion that the electrical conduction might be due to charge carriers in fully ionized trap states of the partially depleted grains, while the conduction in the high-temperature region might be due to thermionic emission of charge carriers from grains.
Meromorphic function sharing a small function with a homogeneous differential polynomial
Abstract In this paper, we consider a Brück-type result for a homogeneous differential polynomial generated by a meromorphic function.