Scattering of Ultrashort X-ray Pulses by Various Nanosystems

Есеев, М. К.; Goshev, A. A.; Макаров, Д. Н.

doi:10.3390/nano10071355

Cited by 10 publications

(17 citation statements)

References 37 publications

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“…As a result, diffraction analysis can be carried out by studying two diffraction patterns at once, which allows you to get more details about the research object. It should be added that the approach developed here, as also shown in 28 , is a special case corresponding to wellknown techniques in X-ray and diffraction analysis.…”

Section: Discussionmentioning

confidence: 99%

“…The theoretical basis for carrying out this kind of research is rather poorly developed and often does not take into account the aspects of scattered USPs 14,16,[23][24][25][26][27][28] , which is why theoretical studies of the aspects of USPs in their scattering by various polyatomic systems are currently being carried out. In spite of this, the magnetic component of such USPs is usually not taken into account.…”

Section: X-ray Diffraction Analysis Of Matter Taking Into Account Thementioning

confidence: 99%

“…For example, in 29 , when considering tunneling ionization in a strong field regime, its contribution was found to be very significant. In 30 , taking into account the magnetic component of USPs led to the possibility of detecting the orientation of molecular anions in space; and in 28 , it was also shown that the magnetic component must be taken into account in the scattering of USPs by various polyatomic systems.…”

Section: X-ray Diffraction Analysis Of Matter Taking Into Account Thementioning

confidence: 99%

“…We are interested in electromagnetic fields that are not strong enough to allow for relativistic effects. As obtained in 28 (see also 26,27 ), taking these approximations into account, the probability W of a photon being created of a given frequency ω per unit solid angle k with a simultaneous transition of a polyatomic system from the main state to all possible final states (hereinafter, the scattering spectrum of USPs) is determined:…”

Section: Theoretical Basismentioning

confidence: 99%

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X-ray diffraction analysis of matter taking into account the second harmonic in the scattering of powerful ultrashort pulses of an electromagnetic field

Есеев

Goshev

Makarova

et al. 2021

Sci Rep

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It is well known that the scattering of ultrashort pulses (USPs) of an electromagnetic field in the X-ray frequency range can be used in diffraction analysis. When such USPs are scattered by various polyatomic objects, a diffraction pattern appears from which the structure of the object can be determined. Today, there is a technical possibility of creating powerful USP sources and the analysis of the scattering spectra of such pulses is a high-precision instrument for studying the structure of matter. As a rule, such scattering occurs at a frequency close to the carrier frequency of the incident USP. In this work, it is shown that for high-power USPs, where the magnetic component of USPs cannot be neglected, scattering at the second harmonic appears. The scattering of USPs by the second harmonic has a characteristic diffraction pattern which can be used to judge the structure of the scattering object; combining the scattering spectra at the first and second harmonics therefore greatly enhances the diffraction analysis of matter. Scattering spectra at the first and second harmonics are shown for various polyatomic objects: examples considered are 2D and 3D materials such as graphene, carbon nanotubes, and hybrid structures consisting of nanotubes. The theory developed in this work can be applied to various multivolume objects and is quite simple for X-ray structural analysis, because it is based on analytical expressions.

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Section: Discussionmentioning

confidence: 99%

Section: X-ray Diffraction Analysis Of Matter Taking Into Account Thementioning

confidence: 99%

Section: X-ray Diffraction Analysis Of Matter Taking Into Account Thementioning

confidence: 99%

Section: Theoretical Basismentioning

confidence: 99%

See 2 more Smart Citations

X-ray diffraction analysis of matter taking into account the second harmonic in the scattering of powerful ultrashort pulses of an electromagnetic field

Есеев

Goshev

Makarova

et al. 2021

Sci Rep

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show abstract

“…In this section, we consider the scattering of X-ray USPs by complex nanosystems [99,102,103]. The wavefunction of the multiatomic system is taken in the form of Eq.…”

Section: Scattering Of Ultrashort X-ray Pulses By Nanosystemsmentioning

confidence: 99%

Diagnostics of Nanosystems with the Use of Ultrashort X-Ray Pulses: Theory and Experiment (Brief Review)

2021

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X-ray diffraction analysis is one of the famous widely used methods to study the structure of matter. It is well known that the scattering of ultrashort X-ray pulses can be used in X-ray diffraction analysis. The scattering of such pulses by various multiatomic objects and nanosystems leads to diffraction patterns carrying information not only on the structure of an object but also on the dynamics of processes in this object. Currently, it is technically possible to fabricate intense sources of femto-and attosecond pulses. New theories including the specificity of the interaction of such pulses with matter are not necessarily applied in the X-ray diffraction analysis involving ultrashort pulses. The inclusion of this specificity should lead to a better use of capabilities of sources of ultrashort pulses and to new scientific results. Sources of X-ray ultrashort pulses, widely used methods and new theories of the X-ray diffraction analysis including the specificity of the interaction of such pulses with matter, and modern experiments involving ultrashort pulses are briefly reviewed here.

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Specificity of scattering of ultrashort laser pulses by molecules with polyatomic structure

Макаров

Makarova

Kharlamova

2022

Sci Rep

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The theory of scattering of ultrashort laser pulses (USP) is the basis of diffraction analysis of matter using modern USP sources. At present, the peculiarities of interaction of USP with complex structures are not well developed. In general, the research focuses on the features of the interaction of USP with simple systems, these are atoms and simple molecules. Here we present a theory of scattering of ultrashort laser pulses on molecules with a multi-atomic structure, taking into account the specifics of the interaction of USP with such a substance. The simplicity of the obtained expressions allows them to be used in diffraction analysis. As an example, the scattering spectra of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are presented. It is shown that the theory developed here is more general in the scattering theory and passes into the previously known one if we consider the duration of the USP to be sufficiently long.

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Scattering of Ultrashort X-ray Pulses by Various Nanosystems

Cited by 10 publications

References 37 publications

X-ray diffraction analysis of matter taking into account the second harmonic in the scattering of powerful ultrashort pulses of an electromagnetic field

X-ray diffraction analysis of matter taking into account the second harmonic in the scattering of powerful ultrashort pulses of an electromagnetic field

Diagnostics of Nanosystems with the Use of Ultrashort X-Ray Pulses: Theory and Experiment (Brief Review)

Specificity of scattering of ultrashort laser pulses by molecules with polyatomic structure

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