ROLE OF TWO-PHOTON ELECTRONIC TRANSITIONS IN OPERATION OF QUANTUM CASCADE LASERS
Journal Title: Сенсорна електроніка і мікросистемні технології - Year 2014, Vol 11, Issue 4
Abstract
The theory of dynamic conductivity of three-barrier resonant tunneling structure in weak electromagnetic field taking into account two-photon electronic transitions with different frequencies is developed within the approximation of effective mass and rectangular potential wells and barriers for the electron using the analytically obtained solutions of complete Schrodinger equation. It is shown that the contribution of two-photon electronic transitions into the total magnitude of dynamic conductivity for some configurations of resonant tunneling structure can approach 40% for the transitions with radiation of electromagnetic wave.
Authors and Affiliations
M. V. Tkach, Ju. O. Seti, I. V. Boyko
DUAL-PORT SAW SENSOR WITH ZNO NANORODS AS SENSING ELEMENT
Highly-sensitive dual-port SAW sensor on 128YX – LiNbO3 substrate with sensing element based on ZnO nanorods was proposed in the research. Low-temperature ZnO nanorods synthesis technology was developed, morphometric cha...
MEASUREMENT OF TEMPERATURE DEPENDENCE OF FACTORS OF ABSORPTION EFFICIENCY OF PLATINUM BOLOMETER ON RADIATION WAVELENGTH 1.06 MICRON
The method of temperature dependence measurement of factor of absorption efficiency of thin-wire platinum bolometer for E- and H-polarized radiation is grounded and experimentally checked taking into account intense dist...
SENSITIVITY OF THIN TIN DIOXIDE FILMS OBTAINED WITH THE USE OF POLYMERS TO HUMIDITY AND ETHANOL
Electrophysical properties of nanosized SnO2 layers obtained using PVA as a structural additive in the presence of water and ethanol vapor at room temperature have been investigated. It is established almost the tenfold...
CONSIDERATION FOR ELECTRONS SCATTERING IN GENERALIZED LANDAUER – DATTA – LUNDSTROM MODEL
In a tutorial article directed to serve researchers, university teachers and students, from the positions of generalized Landauer – Datta – Lundstrom (LDL) model we demonstrate that the average mean free path λ , which d...
MODELING OF NONLINEAR OPTICAL EFFECTS IN THE INTERACTION OF LASER RADIATION WITH ATMOSPHERE AND SENSING FOR ENERGY EXCHANGE IN A MIXTURE ATMOSPHERIC GASES
It is presented an advanced quantum-kinetic model to describe the nonlinear-optical (spectroscopic) effect caused by the interaction of infrared laser radiation with a gas atmosphere. We determine the quantitative featur...