![Loading...](https://link.springer.com/static/c4a417b97a76cc2980e3c25e2271af3129e08bbe/images/pdf-preview/spacer.gif)
-
Article
Emission of terahertz radiation from selectively doped AlGaN/GaN heterostructures under the heating of two-dimensional electrons by an electric field
The emission of terahertz radiation from a AlGaN/GaN heterostructure under the heating of two-dimensional electrons in a lateral electric field is studied. The field dependence of the temperature of hot electr...
-
Article
Absorption and modulation of absorption in p-GaAs/AlGaAs quantum well nanostructures
Optical phenomena in GaAs/AlGaAs quantum well nanostructures doped with acceptors were studied in the mid-IR spectral range. Equilibrium abso rption spectra were measured in a wide temperature range. Modulatio...
-
Article
Emission of terahertz radiation from GaN under impact ionization of donors in an electric field
The emission of terahertz radiation from epitaxial n-GaN layers in lateral electric field was found and studied for the first time. Radiation emission was observed in fields exceeding the impurity breakdown thres...
-
Article
Multifunction metal-semiconductor nanocomposites
The basic properties of metal-semiconductor nanocomposites were investigated using InN/In with In clusters as an example. Inconsistencies in the characteristic energies of optical processes occurring in these ...
-
Article
Hot charge-carrier electroluminescence from laser nanostructures in the spontaneous and stimulated emission modes and absorption of IR radiation by hot electrons in quantum wells
Charge-carrier heating and the carrier concentration dependence on electric current in quantum-well laser heterostructures have been studied under conditions of spontaneous and stimulated emission. Intersubban...
-
Article
Emission of terahertz radiation from GaAsN/GaAs heterostructures in an electric field
Emission of terahertz radiation from strained Be-doped GaAsN layers has been revealed at 4.2 K in postbreakdown electric fields. Heavy and light hole subbands are split in strained layers, and, along with loca...
-
Article
Absorption and emission of terahertz radiation in doped GaAs/AlGaAs quantum wells
Spontaneous emission of terahertz radiation from structures with GaAs/AlGaAs quantum wells in a longitudinal magnetic field has been studied. It is shown that some bands in the emission spectrum can be related...
-
Article
Removal of tritium from vacuum oil by isotopic exchange
Experimental data on the removal of tritium, by isotopic exchange, from VM-5 vacuum oil are presented. It is shown that the most efficient method of extracting tritium from oil is contact with concentrated sul...
-
Article
Concentration of water samples for determining the tritium content
A method of concentrating the tritium in water samples by means of distillation under vacuum (~100 mm Hg) is suggested and experimentally verified. The degree of tritium enrichment is determined by the change ...
-
Article
The relative volatility of solutions of HTO in H2O