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Bulletin of the Lebedev Physics Institute最新文献

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Optothermal Traps Based on Mosaic Phase Masks 基于马赛克相位掩模的光热陷阱
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2025-02-04 DOI: 10.3103/S1068335624602413
S. P. Kotova, N. N. Losevsky, A. M. Mayorova, S. A. Samagin
{"title":"Optothermal Traps Based on Mosaic Phase Masks","authors":"S. P. Kotova,&nbsp;N. N. Losevsky,&nbsp;A. M. Mayorova,&nbsp;S. A. Samagin","doi":"10.3103/S1068335624602413","DOIUrl":"10.3103/S1068335624602413","url":null,"abstract":"<p>The expansion of the functionality of optothermal traps through the use of mosaic diffraction elements has been experimentally demonstrated. The phase functions of simple optical elements are used to form mosaic (sector, ring, and their combinations) phase masks. For the first time, a controlled rotation of ensembles of microparticles in optothermal traps of various shapes has been implemented. It is shown that during rotations with velocities of 2.7–6.5 deg/s, latex microparticles with dimensions of 3–4 μm are held in optothermal traps.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 9 supplement","pages":"S741 - S749"},"PeriodicalIF":0.6,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Light Pressure on a Spherical Particle in the Interference Field of Two Monochromatic Bessel Beams 双单色贝塞尔光束干涉场中球形粒子的光压
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2025-02-04 DOI: 10.3103/S1068335624602437
D. V. Guzatov
{"title":"Light Pressure on a Spherical Particle in the Interference Field of Two Monochromatic Bessel Beams","authors":"D. V. Guzatov","doi":"10.3103/S1068335624602437","DOIUrl":"10.3103/S1068335624602437","url":null,"abstract":"<p>General analytical expressions are derived for the light pressure force that acts on a spherical particle of arbitrary size and material composition (dielectric, metal) located in the interference field of two arbitrary monochromatic vector Bessel beams. For identical beams on orders of <i>m</i> = 0 and 1, the light pressure force is examined for the case of two parallel and copropagating beams and the case of intersection of the beam axes near a dielectric particle. It is shown that the presence of interference leads to a complex motion of a particle located in a plane perpendicular to the parallel beams. It is also demonstrated that with a change in the angle formed by the intersection of the axes of Bessel beams in the center of the particle, the light pressure force changes nonmonotonically, passing through maxima and minima, the number of which increases with increasing particle size. When the particle is displaced from the intersection point of the axes along a straight line located symmetrically between the beams, the light pressure force oscillates with a change in sign and with a gradually decreasing amplitude.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 9 supplement","pages":"S775 - S788"},"PeriodicalIF":0.6,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Efficient Laser Acceleration of Electrons and Ions from Targets with Controlled Preplasma 控制预等离子体的目标电子和离子的有效激光加速
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2025-02-04 DOI: 10.3103/S1068335624602127
A. V. Brantov, M. A. Rakitina, S. I. Glazyrin
{"title":"Efficient Laser Acceleration of Electrons and Ions from Targets with Controlled Preplasma","authors":"A. V. Brantov,&nbsp;M. A. Rakitina,&nbsp;S. I. Glazyrin","doi":"10.3103/S1068335624602127","DOIUrl":"10.3103/S1068335624602127","url":null,"abstract":"<p>Compact sources of high-energy particles and secondary radiation based on the interaction of high-power laser pulses with plasma targets are of interest due to a possibility of their application in a wide range of practical problems. One of the ways to optimize such sources is related to the possibility of controlling the preplasma of a solid target by changing the density gradient of the expanding plasma plume on the irradiated side. The problem of accelerating charged particles by a short laser pulse from targets with a preplasma generated by a nanosecond prepulse (additional pulse) of different intensity and duration is considered. Using self-consistent hydrodynamic/kinetic simulation, the efficiency of electron acceleration is shown to depend not only on the gradient of the preplasma density profile, but also on the focusing point of the laser pulse on this profile.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 9 supplement","pages":"S712 - S719"},"PeriodicalIF":0.6,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Measurements of the Spectral Characteristics of the Laser-Plasma Sources Using Thermoluminescent Detectors 用热释光探测器测量激光等离子体源的光谱特性
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2025-02-04 DOI: 10.3103/S1068335624602310
K. A. Ivanov, G. Kh. Salakhutdinov, A. I. Sivko, I. N. Tsymbalov, I. G. Grigor’eva, I. A. Busygina, A. A. Rupasov, P. V. Moskvich, R. V. Volkov, A. B. Savel’ev
{"title":"Measurements of the Spectral Characteristics of the Laser-Plasma Sources Using Thermoluminescent Detectors","authors":"K. A. Ivanov,&nbsp;G. Kh. Salakhutdinov,&nbsp;A. I. Sivko,&nbsp;I. N. Tsymbalov,&nbsp;I. G. Grigor’eva,&nbsp;I. A. Busygina,&nbsp;A. A. Rupasov,&nbsp;P. V. Moskvich,&nbsp;R. V. Volkov,&nbsp;A. B. Savel’ev","doi":"10.3103/S1068335624602310","DOIUrl":"10.3103/S1068335624602310","url":null,"abstract":"<p>A method of wide-range X-ray and electron spectrometry of plasma formed by a femtosecond laser pulse with a peak intensity of over 10<sup>18</sup> W/cm<sup>2</sup> on the surface of a solid-state target is experimentally considered. Measurements of a flow of charged particles and quanta were carried out using thermoluminescent detectors based on LiF(Mg, Ti) that accumulate a dose, in front of which magnets were additionally installed to isolate the X-ray component. The spectra were obtained on the basis of the method for determining the accumulated dose of a detector depending on the thickness of the filter installed in front of it. The data have been restored in the range from 10 keV to several megaelectronvolts. The “temperatures” of the hot electron components of laser plasma have been determined, which are 160 and 1500 keV and may be related to the effects of particle acceleration in the dense-plasma region, as well as the temperatures during propagation of radiation in a cloud of subcritical density.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 9 supplement","pages":"S720 - S727"},"PeriodicalIF":0.6,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spaser with a Three-Level Active Medium Based on a Layered Cylinder 基于分层圆柱的三能级有源介质Spaser
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2025-02-04 DOI: 10.3103/S1068335624602401
T. M. Chmereva, M. G. Kucherenko, F. Yu. Mushin
{"title":"Spaser with a Three-Level Active Medium Based on a Layered Cylinder","authors":"T. M. Chmereva,&nbsp;M. G. Kucherenko,&nbsp;F. Yu. Mushin","doi":"10.3103/S1068335624602401","DOIUrl":"10.3103/S1068335624602401","url":null,"abstract":"<p>We report a theoretical study of a spaser with an active medium containing three-level molecules or quantum dots, generating one-dimensional axisymmetric plasmon polaritons in a circular cross-section nanowire with a dielectric core and a silver shell. Within the quantum approach to the description of a three-level system and a plasmon polariton, equations of the spaser dynamics are derived and some of their parameters are calculated. The ranges of relaxation rates between excited states of a three-level system are found, at which plasmons of a higher or lower frequency, as well as of both frequencies simultaneously, are generated. It is shown that the stationary number of plasmons of a higher frequency increases linearly with increasing pump rate, and the number of plasmons of a lower frequency either increases nonlinearly or remains constant. Different dependences of the number of plasmons with a higher and lower frequency on the inner radius of the nanowire shell are obtained.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 9 supplement","pages":"S728 - S740"},"PeriodicalIF":0.6,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of the Effect of Background Plasma Parameters on Efficient Generation of Alfvén Waves Produced by Laser Plasma Bunches at Mach Numbers MA = 0.2 背景等离子体参数对马赫数MA = 0.2激光等离子体束有效产生alfv<s:1> n波影响的研究
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2025-02-04 DOI: 10.3103/S1068335624602176
A. G. Berezutsky, V. N. Tishchenko, I. B. Miroshnichenko, S. S. Sharipov, A. A. Chibranov, Yu. P. Zakharov, I. F. Shaikhislamov
{"title":"Investigation of the Effect of Background Plasma Parameters on Efficient Generation of Alfvén Waves Produced by Laser Plasma Bunches at Mach Numbers MA = 0.2","authors":"A. G. Berezutsky,&nbsp;V. N. Tishchenko,&nbsp;I. B. Miroshnichenko,&nbsp;S. S. Sharipov,&nbsp;A. A. Chibranov,&nbsp;Yu. P. Zakharov,&nbsp;I. F. Shaikhislamov","doi":"10.3103/S1068335624602176","DOIUrl":"10.3103/S1068335624602176","url":null,"abstract":"<p>We report the results of numerical simulation of the generation of intense low-frequency Alfvén waves produced by periodic laser plasma bunches under conditions of substantially pre-Alfvén expansion at Mach numbers <i>M</i><sub>A</sub> ≤ 0.2. The effect of the parameters of background plasma and the mass of ions on the effective generation of waves, as well as their structure and intensity is considered.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 9 supplement","pages":"S703 - S711"},"PeriodicalIF":0.6,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dual-Functional Material for Tunable Color Optical Thermometry: Er3+/Yb3+ Co-Doped Lu2Ge2O7 Emitting Red and Green Light under 980 nm/1550 nm Excitation 可调色光测温双功能材料：Er3+/Yb3+共掺杂Lu2Ge2O7在980 nm/1550 nm激发下发出红光和绿光
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2025-02-02 DOI: 10.3103/S1068335624600840
Shengyi Liu, Duan Gao, Li Wang, Wenbin Song, Ying Zhu, Peijia Xiao, Long Cheng, Jiajun Shen
{"title":"Dual-Functional Material for Tunable Color Optical Thermometry: Er3+/Yb3+ Co-Doped Lu2Ge2O7 Emitting Red and Green Light under 980 nm/1550 nm Excitation","authors":"Shengyi Liu,&nbsp;Duan Gao,&nbsp;Li Wang,&nbsp;Wenbin Song,&nbsp;Ying Zhu,&nbsp;Peijia Xiao,&nbsp;Long Cheng,&nbsp;Jiajun Shen","doi":"10.3103/S1068335624600840","DOIUrl":"10.3103/S1068335624600840","url":null,"abstract":"<p>While rare-earth ions have found extensive applications as dopants in up-conversion luminescent materials across various fields, empirical observations reveal distinct influences of different dopants on diverse substances. In light of this, we successfully synthesized dual-mode excitation Lu<sub>2</sub>Ge<sub>2</sub>O<sub>7</sub> up-conversion phosphors doped with Yb<sup>3+</sup>/Er<sup>3+</sup> ions (Lu<sub>2</sub>Ge<sub>2</sub>O<sub>7</sub> : Yb<sup>3+</sup>/Er<sup>3+</sup>). These phosphors are designed to exhibit two distinct emission colors, green and red, under excitation at 980  or 1550 nm. Our research delves into a comprehensive analysis of the potential up-conversion mechanisms, considering different excitation sources at wavelengths of 980 and 1550 nm. Our results unambiguously demonstrate that doping with Er<sup>3+</sup> and Yb<sup>3+</sup> ions can alter the optical properties of Lu<sub>2</sub>Ge<sub>2</sub>O<sub>7</sub>, resulting in the tunable color and optical thermometry capabilities. This material exhibits promising prospects in diverse fields such as fluorescent anti-counterfeiting and temperature sensing.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 12","pages":"519 - 528"},"PeriodicalIF":0.6,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Influence of Spin-Orbit Coupling on the Efficiency of Optical Transitions in NeAr+ Molecular Ion 自旋-轨道耦合对近+分子离子光学跃迁效率的影响
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2025-02-02 DOI: 10.3103/S1068335624602152
A. A. Narits
{"title":"The Influence of Spin-Orbit Coupling on the Efficiency of Optical Transitions in NeAr+ Molecular Ion","authors":"A. A. Narits","doi":"10.3103/S1068335624602152","DOIUrl":"10.3103/S1068335624602152","url":null,"abstract":"<p>Using the NeAr<sup>+</sup> weakly-bound ion as an example, we discuss the dependences of oscillator strengths of electric and magnetic dipole transitions in the weakly-bound heteronuclear rare gas ions on the spin-orbit coupling. We show that even when the spin-orbit coupling magnitude is small, its role in the optical transitions in the weakly-bound systems is not limited to line splitting. The correlation between the typical magnitude of the spin-orbit coupling energy, the splitting of the unperturbed terms and the change in the oscillator strengths of the electric and magnetic dipole transitions is demonstrated.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 12","pages":"550 - 555"},"PeriodicalIF":0.6,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Zonal Approach to Multidimensional Simulation of Laser–Cluster Interaction in Large Spatial Volumes 大空间体中激光-星团相互作用多维模拟的区域方法
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2025-02-02 DOI: 10.3103/S1068335624600803
D. A. Gozhev
{"title":"Zonal Approach to Multidimensional Simulation of Laser–Cluster Interaction in Large Spatial Volumes","authors":"D. A. Gozhev","doi":"10.3103/S1068335624600803","DOIUrl":"10.3103/S1068335624600803","url":null,"abstract":"<p>The paper presents a method that allows full-fledged resource-intensive 3D PIC simulation of the interaction of laser radiation with a large volume of cluster/droplet medium to be reduced to a series of simpler calculations by partitioning the interaction region into small zones. It is shown how normalization of the resulting spectra of accelerated ions can to used to dramatically decrease the number of necessary calculations by interpolating the obtained data.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 12","pages":"535 - 542"},"PeriodicalIF":0.6,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Midwave IR Detector Based on a Photonic Crystal Resonator Combined with a Barrier-Diode InAsSb/AlSb Heterostructure 基于asb /AlSb异质结构势垒二极管的光子晶体谐振腔中波红外探测器
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2025-02-02 DOI: 10.3103/S1068335624601572
V. S. Krivobok, M. A. Shevchenko
{"title":"A Midwave IR Detector Based on a Photonic Crystal Resonator Combined with a Barrier-Diode InAsSb/AlSb Heterostructure","authors":"V. S. Krivobok,&nbsp;M. A. Shevchenko","doi":"10.3103/S1068335624601572","DOIUrl":"10.3103/S1068335624601572","url":null,"abstract":"<p>Based on numerical simulation within the finite element method, a hybrid midwave IR photodetector is designed, in which incident electromagnetic radiation is converted into localized surface plasmons that act as an intermediary for excitation transfer to the semiconductor part of the detector. The near-field of surface plasmons allows to utilize thin InAsSb absorption layers to suppress the diffusion component of dark current and its associated noise and to increase quantum efficiency. The developed design taking into account manufacturing considerations is adapted to produce IR detectors that permit matrix format and have high detectivity at temperatures accessible for cascade Peltier elements.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 12","pages":"529 - 534"},"PeriodicalIF":0.6,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","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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