High order harmonics in solids

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August undefined, 2024

WebIn particular, the functions and , introduced in Section 12.3, are solid harmonics of degree .Note that the Cartesian coordinates (where runs from to ) are solid harmonics of degree … WebJan 1, 2024 · There are two main mechanisms leading to HHG in solids that are usually considered. The first one is interband polarization, which has much in common with the three-step model used to explain HHG in the gas phase (Corkum, 1993; Lewenstein et al., 1994; Schafer et al., 1993).

Spectral caustics of high-order harmonics in one-dimensional periodic …

WebDec 14, 2024 · In this work, we study the role of these effects in the high-order harmonic spectrum by using the Time-Dependent Density Functional Theory (TDDFT) approach with … WebAug 17, 2024 · High harmonic generation (HHG) in crystals has revealed a wealth of perspectives such as all-optical mapping of the electronic band structure, ultrafast quantum information, and the creation of all-solid-state attosecond sources. incompatibility\\u0027s eg

Theoretical description of high-order harmonic generation in …

WebNov 1, 2024 · High harmonic generation (HHG) from solids shows great application prospects in compact short-wavelength light sources and as a tool for imaging the dynamics in crystals with subnanometer spatial and attosecond temporal resolution. WebJul 6, 2024 · We theoretically investigate high-order harmonic generation (HHG) in one-dimensional model solids with linearly polarized laser pulses. By identifying crystal … WebAug 2, 2024 · High-order harmonic generation (HHG) in solids has entered a new phase of intensive research, with envisioned band-structure mapping on an ultrashort time scale. This partly benefits from a flurry of new HHG materials discovered, but so far has missed an important group. HHG in magnetic materials should have profound impact on future … incompatibility\\u0027s eh

Full article: High order harmonic generation in solids: a …

Spectral control of high order harmonics through non-linear …

WebMay 17, 2024 · High-order harmonic generation (HHG) from crystals is emerging as a new ultrashort source of coherent extreme ultraviolet (XUV) light. ... Pattanayak, M. M. S, and G. Dixit, “ Influence of vacancy defects in solid high-order harmonic generation,” Phys. Rev. A 101, 013404 (2024). WebApr 11, 2024 · High harmonic generation (HHG) in monolayer MoS2 is studied using fully microscopic many-body models based on the semiconductor Bloch equations and density functional theory. It is shown that Coulomb correlations lead to a dramatic enhancement of HHG. In particular, near the bandgap, enhancements of two orders of magnitude or more … inches to fraction conversion chartWebSep 9, 2024 · High-order harmonic generation (HHG) from solids is an emerging research field [ 1, 2, 3 ]. There have been reports of HHG from a variety of materials as a promising new light source as well as its use for spectroscopic studies [ 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22 ]. inches to fractions

"WebDec 16, 2024 · High harmonic generation (HHG) in solids is investigated. We find that interband emission is dominant for the midinfrared laser driver frequencies, whereas intraband emission dominates the… Expand 206 Highly Influential PDF View 4 excerpts, references background and methods Solid-state harmonics beyond the atomic limit G. … " - High order harmonics in solids

High order harmonics in solids

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WebDec 14, 2024 · In this work, we study the role of these effects in the high-order harmonic spectrum by using the Time-Dependent Density Functional Theory (TDDFT) approach with the Dynamical Mean-Field Theory (DMFT) exchange-correlation kernel. In this approximation, one takes into account the time-resolved on-site electron-electron interactions. WebHigh-order exceptional points in large arrays of subwavelength resonators. - highEPs/harmonicY.m at master · davies-b/highEPs ... % Y = HARMONICY(N,M,TH,PHI,R) computes the solid spherical harmonic of % degree N and order M, evaluated at each element of inclination TH, % azimuth PHI and radius R. N and M must be scalar integers …

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WebMar 16, 2024 · Houston states [ 20, 21 ], a time-dependent basis set, are known to be suitable states to describe the underlying dynamics in generating the high-order … WebApr 14, 2024 · The voltage contains lots of DC components and high-order harmonics, which is likely to cause insulation failures. The partial discharge and space charge experiments of oil-impregnated pressboard under DC superimposed harmonic voltage are conducted to study the effects of harmonic frequency and DC components on the discharge and charge …

WebMay 15, 2024 · The resonant high-order harmonic generation (HHG) from solid in the periodic potential is investigated by a chirped laser pulse. We show the dependence of the intensity of the resonance peak on the chirp parameters β, and it is found that the increase of the resonant harmonic intensity with β is significantly higher than that of the … WebJan 8, 2024 · PDF Interaction of intense lasers with solid materials offers an alternative way to achieve high-order harmonic generation (HHG). Since the underlying... Find, read …

WebMay 13, 2024 · A 101, 053423 (2024) - Probing structural chirality of crystals using high-order harmonic generation in solids Structural chirality plays an important role in solid-state physics and leads to a variety of novel physics. The feasibility of probing structural chirality of crystals using high harmonic generation in solids is explored in this work. WebHigh-harmonic generation in solids can originate from two channels, an intraband current ... In order to better understand the physical processes driving HHG in solids, it is useful to exploreEqs. (1)byusingtheKeldyshapproximation[17],w(t)≈1inEq. (1a). Thisdecouples Eqs. (1) so that they can be formally integrated.

WebDec 18, 2024 · We investigate the connection between crystal symmetry and temporal and spectral properties of high-order harmonics in solids. We calculate the orientation-dependent harmonic spectrum driven by an intense, linearly polarized infrared laser field, using a momentum-space description of the generation process in terms of strong-field …

WebDec 16, 2024 · arXiv: Optics. We theoretically investigate the spectral caustics of high-order harmonics in solids. We analyze the 1-dimension model of solids HHG and find that, apart … inches to fractions mmWebApr 12, 2024 · Feature papers represent the most advanced research with significant potential for high impact in the field. A Feature Paper should be a substantial original Article that involves several techniques or approaches, provides an outlook for future research directions and describes possible research applications. ... Jun Wang, Jigen Chen, and … incompatibility\\u0027s eiWebWe consider several aspects of high-order harmonic generation in solids: the effects of elastic and inelastic scattering, varying pulse characteristics and inclusion of material … inches to frenchWebNov 22, 2024 · We investigate theoretically the spectral shift of the high-order harmonic generation (HHG) in ZnO driven by a combined laser field by solving the two-band semiconductor Bloch equations... inches to fractions conversion calculatorWebNov 19, 2024 · High-harmonic generation from solids Full Record References (56) Cited by (18) Related Research Abstract We report that high-harmonic generation in atomic gases has been studied for decades, and has formed the basis of attosecond science. Observation of high-order harmonics from bulk crystals was, however, reported much more recently, in … incompatibility\\u0027s elWebFeb 1, 2013 · In a solid, this would correspond to electron–hole pair excitation and de-excitation. However, as we will show, high-order harmonics can be generated solely via the acceleration of the conduction electrons by the field, and the Bragg scattering that occurs repeatedly in high field [ 34 ]. inches to fractions chartWebNov 19, 2024 · Fig. 3: Recent progress in high harmonics from solids. The photon energy of the highest-order harmonic observed from a wide range of materials. Metals and semiconductors need terahertz or... inches to fractions of inch