Intraband current
WebJul 31, 2024 · Normalized intraband current density of BBLG in response to the 1 THz pulse with amplitude of 50 kV/cm for a number of different bias values, a = 0, 50, 150, … WebAug 26, 2016 · A fundamental process related to the intraband motion of charges is the Franz-Keldysh effect. In a simple physical picture, a static external field applied to a dielectric bends the crystal potential and accelerates the electron-hole pair. Its wave function becomes an Airy function with an exponential tail that extends into the energy gap.
Intraband current
Did you know?
WebNov 15, 2024 · The intraband current is generated by the Bloch oscillations of electrons/holes within the electric band. The inter- and intraband currents contribute … WebMar 16, 2024 · The intraband current is known to characterize the electron dynamics on the same band (\(n=n'\)), and the interband current reflects the electron transition …
WebJun 21, 2024 · At present, it is widely accepted that HHG in solids comes from two major contributions: intraband current and interband polarization [30,31,32]; the complex coupling between the two mechanisms not only affects the charge injection from the valence band to the conduction band but also affects the motion of excited-state electron wave packets in … WebJan 14, 2024 · The electric currents are carried by negative (electrons) and positive charge carriers (holes) performing so called intraband motions in various electronic bands of the semiconductor.
WebJul 7, 2024 · A theoretical model for high-order harmonic generation (HHG) in bulk solids is considered. Our approach treats laser-induced inter- and intraband currents on an … WebApr 5, 2024 · Furthermore, by decomposing the intraband current J intra (ω), our analysis provides further insights into the HHG mechanism. Figure 4 shows that the high harmonic components due to J intra (ω) closely follow those of the intraband current J VBM (ω) originating from VBM (red dashed line), whose band is composed of a mixture of Cl 3p …
WebAug 28, 2024 · Figure 1. Laser-induced currents and HHG spectra in an eight-cycle laser pulse (T laser represents the laser cycle) with wavelength 5 μ m and intensity 4.3 × 10 …
WebAug 28, 2024 · DOI: 10.1103/PHYSREVA.98.023427 Corpus ID: 125183335; Interference between inter- and intraband currents in high-order harmonic generation in solids … grand prix golf calendrierWebMay 1, 2024 · In order to understand the roles of depopulation and dephasing in THz emission, we consider the characteristics of the total, intraband and interband currents for T 2 = 0.25 T 0, T 1 = 50 T 0 as shown in Fig. 3. As defined in the section of method, the total current is the coherent sum of the intraband and interband currents. chinese ner projectWebarise within the to so-called intraband currents: upon strong-field interaction, electrons are excited from the valence band to the conduction band(s) and are there driven by the intense laser field. Due to the nonlinear band dispersion, this mo-tion leads to the laser-induced intraband current giving rise to grand prix go cartWebMar 23, 2024 · This is further proved in figure 18, that shows the windowed Fourier transform of inter- and intraband currents (colour coded) superposed to the time of emission expected from the semiclassical model of recollisions (red lines). The time of emission of intraband harmonics (panel (a)) agrees with recollisions for harmonic orders … grand prix go karts ocean city mdWebMay 9, 2024 · The intraband current in a single band has long been proposed as a potential mechanism for harmonic generation under intense terahertz fields 73. … chinese neon golden stripe sharkWebNov 14, 2016 · The intraband contribution reflects nonlinear currents from non-parabolic band dispersion, whereas the interband contribution arises from an induced polarization … grand prix greensboro ncWebMar 30, 2024 · The dark current is an important factor affecting the noise in Equation (1) and the root cause is the thermally excited electron-hole pairs. Therefore, the dark current has an exponential relationship with the temperature . For photodetectors with intraband transition, the dark current was minimal at low temperature . grand prix go cart myrtle beach