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Modeling of Terahertz Radiation Generation in Air by Two-Color “Dressed” Laser Beams 双色“修饰”激光束在空气中产生太赫兹辐射的建模
IF 0.8 4区 地球科学
Radiophysics and Quantum Electronics Pub Date : 2026-09-17 DOI: 10.1007/s11141-026-10509-4
A. V. Balakin, I. A. Ozheredov, A. D. Bulygin, P. M. Solyankin, Yu. V. Kistenev
{"title":"Modeling of Terahertz Radiation Generation in Air by Two-Color “Dressed” Laser Beams","authors":"A. V. Balakin,&nbsp;I. A. Ozheredov,&nbsp;A. D. Bulygin,&nbsp;P. M. Solyankin,&nbsp;Yu. V. Kistenev","doi":"10.1007/s11141-026-10509-4","DOIUrl":"10.1007/s11141-026-10509-4","url":null,"abstract":"<p>We propose a semiphenomenological computer model that describes a method for controlling the position of a remote localized source of terahertz radiation generated by two-color “dressed” laser beams (that is, those formed by a superposition of Gaussian and ring-shaped beams). The results of evaluating the efficiency of terahertz radiation generation for “dressed” beams with symmetric and asymmetric spectral content are also presented. Numerical simulations showed that varying the focusing distance of the outer ring-shaped beam within the filamentation region of the inner Gaussian beam allows one to control the position of the local region of terahertz radiation generation. It is also shown that the use of a “dressed” laser beam with symmetric spectral content produces a severalfold increase in the output terahertz radiation energy density compared with using a single Gaussian beam.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"68 12","pages":"929 - 941"},"PeriodicalIF":0.8,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Terahertz Radiation on Albumin Interaction with Biologically Essential Metal Ions 太赫兹辐射对白蛋白与生物必需金属离子相互作用的影响
IF 0.8 4区 地球科学
Radiophysics and Quantum Electronics Pub Date : 2026-09-17 DOI: 10.1007/s11141-026-10511-w
E. F. Nemova, O. P. Cherkasova, G. G. Dultseva, N. A. Nikolaev
{"title":"Effect of Terahertz Radiation on Albumin Interaction with Biologically Essential Metal Ions","authors":"E. F. Nemova,&nbsp;O. P. Cherkasova,&nbsp;G. G. Dultseva,&nbsp;N. A. Nikolaev","doi":"10.1007/s11141-026-10511-w","DOIUrl":"10.1007/s11141-026-10511-w","url":null,"abstract":"<p>We study the effect of low-intensity broadband terahertz radiation in the frequency range of 0.2–1.5 THz on the binding of bovine serum albumin (BSA) with ions of biologically essential metals calcium, cobalt and nickel. BSA film preparations were irradiated for 60 min. The methods of high-performance liquid chromatography and EPR spectroscopy were used to record the effects. It is shown that the degree of binding of the studied metal ions to irradiated BSA is higher than to non-irradiated BSA. The degree of binding of the calcium ion, which has the largest radius, is less than for cobalt and nickel ions. THz irradiation leads to a decrease in the aggregation of BSA molecules in aqueous solution in the presence of metal ions compared to non-irradiated protein. To explain the obtained results, numerical simulation of BSA aggregation and its interaction with metal ions was carried out, and the functional groups of BSA responsible for these processes were determined.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"68 12","pages":"950 - 957"},"PeriodicalIF":0.8,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Terahertz Sensing of Ammonia in the Atmosphere Based on Planar Metastructures 基于平面元结构的大气中氨的太赫兹传感
IF 0.8 4区 地球科学
Radiophysics and Quantum Electronics Pub Date : 2026-09-17 DOI: 10.1007/s11141-026-10510-x
M. R. Konnikova, A. V. Balakin, F. A. Kozhevnikov, A. R. Shevchenko, A. M. Mumlyakov, M. I. Krasilnikov, A. A. Anikanov, A. A. Angeluts
{"title":"Terahertz Sensing of Ammonia in the Atmosphere Based on Planar Metastructures","authors":"M. R. Konnikova,&nbsp;A. V. Balakin,&nbsp;F. A. Kozhevnikov,&nbsp;A. R. Shevchenko,&nbsp;A. M. Mumlyakov,&nbsp;M. I. Krasilnikov,&nbsp;A. A. Anikanov,&nbsp;A. A. Angeluts","doi":"10.1007/s11141-026-10510-x","DOIUrl":"10.1007/s11141-026-10510-x","url":null,"abstract":"<p>We propose a new approach to gas analysis based on pulsed terahertz spectroscopy combined with sensing methods. To demonstrate the capabilities of this approach, ammonia was chosen as the target gas. A sensor was designed and fabricated based on the absorption spectra of ammonia. This sensor is a planar metastructure with an split ring resonator pattern on a silicon wafer. The absorption spectra of ammonia were studied both in an empty cuvette and in a cuvette with the sensor installed. A significant (13.2-fold) increase in the sensitivity of terahertz spectroscopy was shown when using the sensor to detect the presence of ammonia in the cuvette. The obtained results suggest that terahertz sensing can be a promising method for gas analysis.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"68 12","pages":"942 - 949"},"PeriodicalIF":0.8,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Magnetic Properties of Thin-Film Fe/Pt and Fe/NiO/Pt Heterostructures Synthesized by Pulsed Laser Deposition for Terahertz Applications 脉冲激光沉积制备薄膜Fe/Pt和Fe/NiO/Pt异质结构在太赫兹应用中的磁性能
IF 0.8 4区 地球科学
Radiophysics and Quantum Electronics Pub Date : 2026-09-17 DOI: 10.1007/s11141-026-10508-5
D. S. Gusev, A. I. Dmitriev, L. S. Parshina, M. S. Dmitrieva, M. S. Shanin, A. S. Sinko, R. I. Voronin, O. A. Novodvorsky, A. P. Shkurinov
{"title":"Magnetic Properties of Thin-Film Fe/Pt and Fe/NiO/Pt Heterostructures Synthesized by Pulsed Laser Deposition for Terahertz Applications","authors":"D. S. Gusev,&nbsp;A. I. Dmitriev,&nbsp;L. S. Parshina,&nbsp;M. S. Dmitrieva,&nbsp;M. S. Shanin,&nbsp;A. S. Sinko,&nbsp;R. I. Voronin,&nbsp;O. A. Novodvorsky,&nbsp;A. P. Shkurinov","doi":"10.1007/s11141-026-10508-5","DOIUrl":"10.1007/s11141-026-10508-5","url":null,"abstract":"<p>We study the effect of low-intensity broadband terahertz radiation in the frequency range of 0.2–1.5 THz on the binding of bovine serum albumin (BSA) with ions of biologically essential metals calcium, cobalt and nickel. BSA film preparations were irradiated for 60 min. The meth ods of high-performance liquid chromatography and EPR spectroscopy were used to record the effects. It is shown that the degree of binding of the studied metal ions to irradiated BSA is higher than to non-irradiated BSA. The degree of binding of the calcium ion, which has the largest ra dius, is less than for cobalt and nickel ions. THz irradiation leads to a decrease in the aggregation of BSA molecules in aqueous solution in the presence of metal ions compared to non-irradiated protein. To explain the obtained results, numerical simulation of BSA aggregation and its inter action with metal ions was carried out, and the functional groups of BSA responsible for these processes were determined.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"68 12","pages":"921 - 928"},"PeriodicalIF":0.8,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Terahertz Sensor for Cortisol Detection 太赫兹皮质醇检测传感器
IF 0.8 4区 地球科学
Radiophysics and Quantum Electronics Pub Date : 2026-09-16 DOI: 10.1007/s11141-026-10512-9
D. S. Ustiantseva, M. R. Konnikova, A. R. Shevchenko, A. M. Mumlyakov, M. I. Krasilnikov, A. A. Anikanov, O. P. Cherkasova, N. A. Nikolaev
{"title":"Terahertz Sensor for Cortisol Detection","authors":"D. S. Ustiantseva,&nbsp;M. R. Konnikova,&nbsp;A. R. Shevchenko,&nbsp;A. M. Mumlyakov,&nbsp;M. I. Krasilnikov,&nbsp;A. A. Anikanov,&nbsp;O. P. Cherkasova,&nbsp;N. A. Nikolaev","doi":"10.1007/s11141-026-10512-9","DOIUrl":"10.1007/s11141-026-10512-9","url":null,"abstract":"<p>We study the glucocorticoid hormone cortisol that performs vital functions in the human and animal body. For example, in oncology, the ratio of cortisol and its reversible metabolite, cortisone, can determine the degree of malignancy, predict disease progression, and help select optimal therapy. This paper proposes a method for identifying and quantifying cortisol concentrations in biological liquids based on terahertz sensing. For this purpose, we designed and manufactured a THz sensor based on a metasurface that consists of a two-dimensional periodic array of modified split-ring microresonators made of aluminum on a silicon substrate. We study how changes in the sensor’s effective absorption at resonant frequencies depend on the amount of the analyzed substance. Selective interaction of the THz sensor with cortisol molecules is demonstrated, and its quantitative detection range is determined.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"68 12","pages":"958 - 968"},"PeriodicalIF":0.8,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ultrasonic Heating of Biological Tissue During Cooling of the Contact Boundary Area 接触边界区域冷却过程中生物组织的超声加热
IF 0.8 4区 地球科学
Radiophysics and Quantum Electronics Pub Date : 2026-09-16 DOI: 10.1007/s11141-026-10513-8
M. M. Karzova, A. N. Rybyanets, I. A. Shvetsov, V. A. Khokhlova, P. A. Pestova, L. M. Kotelnikova, O. A. Sapozhnikov
{"title":"Ultrasonic Heating of Biological Tissue During Cooling of the Contact Boundary Area","authors":"M. M. Karzova,&nbsp;A. N. Rybyanets,&nbsp;I. A. Shvetsov,&nbsp;V. A. Khokhlova,&nbsp;P. A. Pestova,&nbsp;L. M. Kotelnikova,&nbsp;O. A. Sapozhnikov","doi":"10.1007/s11141-026-10513-8","DOIUrl":"10.1007/s11141-026-10513-8","url":null,"abstract":"<p>Using inhomogeneous heat conduction equation, a solution was obtained for the three-dimensional spatial distribution of the temperature field in a biotissue sample during contact cooling of its boundary area and simultaneous volumetric heating due to the absorption of ultrasonic beam energy. Analytical estimates were obtained for the times required to establish thermal equilibrium when heated samples of various geometries are placed in an immersion medium with a given temperature.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"68 12","pages":"969 - 979"},"PeriodicalIF":0.8,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Excitation of Double Plasmon Resonances in a Spherical Metal Nanoparticle 球形金属纳米粒子中双等离子激元共振的激发
IF 0.8 4区 地球科学
Radiophysics and Quantum Electronics Pub Date : 2026-09-16 DOI: 10.1007/s11141-026-10514-7
I. A. Pavlichenko, M. R. Udalov
{"title":"Excitation of Double Plasmon Resonances in a Spherical Metal Nanoparticle","authors":"I. A. Pavlichenko,&nbsp;M. R. Udalov","doi":"10.1007/s11141-026-10514-7","DOIUrl":"10.1007/s11141-026-10514-7","url":null,"abstract":"<p>We study theoretically the nonlinear interaction of a spherical metal nanoparticle with an external electric field allowing for spatial dispersion and excitation of the second harmonic. The case of double plasmon resonances is considered for the first time, where the frequencies of both the fundamental and doubled harmonics of the field simultaneously coincide with the Mie frequency and the frequency of one of the volume plasmons of the nanoparticle, respectively. The average power loss in the nanoparticle volume is calculated on the basis of the hydrodynamic model. The calculations show that the maximum power loss is sensitive to a change in the dielectric permittivity of the medium surrounding the nanoparticle and increases significantly under the conditions of excitation of double resonances. The obtained results demonstrate that this effect can be used to control the nonlinear optical properties of nanostructures, as well as for optical diagnostics.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"68 12","pages":"980 - 990"},"PeriodicalIF":0.8,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electric Area of a Pulse Reflected from a Thin Layer of a Finite-Width Medium 脉冲从有限宽度介质的薄层反射的电面积
IF 0.8 4区 地球科学
Radiophysics and Quantum Electronics Pub Date : 2026-09-16 DOI: 10.1007/s11141-026-10515-6
N. N. Rozanov, N. A. Veretenov
{"title":"Electric Area of a Pulse Reflected from a Thin Layer of a Finite-Width Medium","authors":"N. N. Rozanov,&nbsp;N. A. Veretenov","doi":"10.1007/s11141-026-10515-6","DOIUrl":"10.1007/s11141-026-10515-6","url":null,"abstract":"<p>We analyze the spatial distribution of the electric area of an electromagnetic pulse being the time integral of the electric field, when it is reflected or scattered by a thin layer of a rarefied medium with limited transverse dimensions. The model used for a dielectric medium is a set of Lorentz oscillators, while the Drude model is used for the case of a medium with free charges, which is also discussed. The problem is reduced to an electrostatic problem having a simple analytical solution. It is shown that the presence of a long trailing edge of the pulse makes a significant contribution to the desired distribution, and allowing for the finite transverse dimensions of the layer for a medium with free charges makes this distribution qualitatively similar to the case of a dielectric layer.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"68 12","pages":"991 - 998"},"PeriodicalIF":0.8,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparing the Design Features of Dampers of Transverse Oscillations of a String Lying on an Elastic Base 弹性基弦横向振动阻尼器的设计特点比较
IF 0.8 4区 地球科学
Radiophysics and Quantum Electronics Pub Date : 2026-09-02 DOI: 10.1007/s11141-026-10507-6
V. I. Erofeev, E. E. Lisenkova
{"title":"Comparing the Design Features of Dampers of Transverse Oscillations of a String Lying on an Elastic Base","authors":"V. I. Erofeev,&nbsp;E. E. Lisenkova","doi":"10.1007/s11141-026-10507-6","DOIUrl":"10.1007/s11141-026-10507-6","url":null,"abstract":"<p>We consider transverse vibrations of a semi-bounded string lying on an elastic foundation with a damper on the boundary. The simplest mechanical models of a viscoelastic body used as a damper (Maxwell, Voigt—Kelvin, Poynting—Thomson and Burgers models) are analyzed allowing for its inertial properties, where such a body is a set of series- and parallel-connected springs and dampers. The conditions are found that must be satisfied by the parameters of the damper eliminating reflected waves and providing the lowest intensity of oscillations of the “string + elastic foundation” system.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"68 11","pages":"915 - 920"},"PeriodicalIF":0.8,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hydroelastic Solitary Deformation Waves in a Cylindrical Shell with Combined Nonlinearity and with Energy Dissipation 结合非线性和能量耗散的圆柱壳的水弹性孤立变形波
IF 0.8 4区 地球科学
Radiophysics and Quantum Electronics Pub Date : 2026-09-02 DOI: 10.1007/s11141-026-10506-7
L. I. Mogilevich, E. V. Popova, V. S. Popov
{"title":"Hydroelastic Solitary Deformation Waves in a Cylindrical Shell with Combined Nonlinearity and with Energy Dissipation","authors":"L. I. Mogilevich,&nbsp;E. V. Popova,&nbsp;V. S. Popov","doi":"10.1007/s11141-026-10506-7","DOIUrl":"10.1007/s11141-026-10506-7","url":null,"abstract":"<p>We study longitudinal nonlinear solitary deformation waves in an elastic cylindrical shell completely filled with a viscous fluid. In the case under consideration, the state of the shell is assumed to be momentless, and the stress–strain relation for its material has the form of a generalized Hooke’s law which additionally allows for the dependence of the components of the stress tensor on the strain tensor components to the power of 3/2. Moreover, the quadratic nonlinearity of the initial equations of motion of the shell element is also taken into account. The problem of hydroelasticity for the specified shell is formulated, and asymptotic analysis by the method of two-scale expansions yields an evolution equation that generalizes the Schamel–Korteweg–de Vries equation by incorporating the dissipation of the energy of the wave process in the material of the shell and the fluid. The evolution of hydroelastic solitary waves in a shell is studied numerically with a proposed difference scheme similar to the Crank–Nicolson scheme for the heat equation. The scheme is verified with an exact particular solution for the case where the influence of the fluid in the shell and dissipation in its material are excluded from consideration. It is shown that for this case, the speed of deformation waves is supersonic, and they are solitons. On the other hand, it has been established that when the dissipative properties of the shell material and the fluid, as well as the inertia of the latter, are taken into account, the speed of deformation solitons is subsonic, and their destruction is observed.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"68 11","pages":"903 - 914"},"PeriodicalIF":0.8,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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