Journal of Russian Laser Research最新文献_第7页

Narrow-Linewidth 1.5 μm Nd:YLF-YVO4 Intracavity Raman Laser 窄线宽 1.5 μm Nd:YLF-YVO4 腔内拉曼激光器

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2023-11-23 DOI: 10.1007/s10946-023-10160-8

Pengquan Zhang, Yangyang Wu, Zhihua Fang, Hongtao Wu, Dongyang Huo

引用次数: 0

Maxwell–Boltzmann and Druyvesteyn Distribution Functions Expressing the Particle Velocity and the Energy in Sheath Plasmas 鞘层等离子体中表达粒子速度和能量的Maxwell-Boltzmann和Druyvesteyn分布函数

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2023-11-23 DOI: 10.1007/s10946-023-10157-3

Pawan K. Tiwari, Ravindra Kumar, Kritika Halder, Yeon Soo Lee

{"title":"Maxwell–Boltzmann and Druyvesteyn Distribution Functions Expressing the Particle Velocity and the Energy in Sheath Plasmas","authors":"Pawan K. Tiwari, Ravindra Kumar, Kritika Halder, Yeon Soo Lee","doi":"10.1007/s10946-023-10157-3","DOIUrl":"10.1007/s10946-023-10157-3","url":null,"abstract":"<div><p>The energy distribution of particles in a gaseous system is well understood through the implementation of a statistical tool, namely, the Maxwell–Boltzmann distribution function in the velocity–space coordinate system. The Maxwell–Boltzmann distribution function is utilized to investigate the velocity distribution of plasma particles like electrons, assuming that their collision frequency does not depend on the velocity. However, there is a swift transition in converting the Maxwell–Boltzmann distribution function to the Druyvesteyn distribution function for the case where a collision frequency is directly proportional to the velocity. Our aim is to incorporate the frequency components to investigate the Maxwell–Boltzmann and Druyvesteyn distribution functions. Employing the equation of motion, we observe that the collisional electron velocity is equal to the equilibrium electron velocity <i>∼eE/m</i><sub><i>e</i></sub><i>ω</i> multiplied by the collisional frequency over the external source frequency <i>β</i> = <i>ν/ω</i> corresponding to the externally applied electric field. We investigate the difference in the Druyvesteyn distribution function between sheath and pre-sheath regions, when a stream of electrons is traversing or effusing through the part of a pre-sheath region corresponding to the dimension of the order of mean free path. Velocity and corresponding energy distribution functions are compared for non-effusion and effusion cases in the collisional and non-collisional regimes. The Maxwell–Boltzmann and Druyvesteyn velocity and energy distributions are competitive when the collisional frequency is twice the frequency of the applied electric field.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138542880","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

Controlled Optical Contrast Caused by Reversible Laser-Induced Phase Transitions in GeTe and Ge2Sb2Te5 Thin Films in the Spectral Range from 500 to 20,000 nm 光谱范围为500 ~ 20,000 nm的GeTe和Ge2Sb2Te5薄膜的可逆激光诱导相变控制光学对比度

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2023-11-23 DOI: 10.1007/s10946-023-10180-4

Anton A. Burtsev, Alexey V. Kiselev, Vitaly V. Ionin, Nikolay N. Eliseev, Mariya E. Fedyanina, Vladimir A. Mikhalevsky, Alexey A. Nevzorov, Oleg A. Novodvorsky, Andrey A. Lotin

引用次数: 0

Exploring the Survival and Sudden Death of Quantum Correlations in an Open Atomic Laser System 探索开放原子激光系统中量子相关的生存与猝死

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2023-11-23 DOI: 10.1007/s10946-023-10156-4

Ebisa Mosisa Kanea, Chimdessa Gashu Feyisa

{"title":"Exploring the Survival and Sudden Death of Quantum Correlations in an Open Atomic Laser System","authors":"Ebisa Mosisa Kanea, Chimdessa Gashu Feyisa","doi":"10.1007/s10946-023-10156-4","DOIUrl":"10.1007/s10946-023-10156-4","url":null,"abstract":"<div><p>We focus our study on the quantum correlations of coupled photon pairs produced in an open atomic laser system, where quantum coherence is brought about by the superposition of a coherent atomic state and a coherent classical field. Quantum properties produced by photon–photon correlations are a long sought-after goal in quantum information science and technology, because photons combine at room temperature with high speed and long coherence times. The openness of the system under consideration allows quantum decoherence due to temperature and phase fluctuations to influence the quantum correlations generated. The competition between these quantum coherence and quantum decoherence leads to temporal quantum correlations, which we analyze using the time evolution of the density operator. Strong quantum correlations can be achieved by choosing an appropriate amplitude of the classical fields, treating temperature and phase fluctuations, and increasing the atomic injection rate over time. We also show that quantum entanglement is short-lived, quantum steering slowly decreases, but quantum discord increases with increasing heat bath temperature and atomic phase fluctuations. In this study, we explore the behavior of quantum correlations in an open atomic laser system and investigate the dynamics of entanglement, discord, and steering in this system and examine how they evolve over time.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138525126","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 a 100 W Solar-Pumped Disk Laser with TEM00 Output 研究具有 TEM00 输出的 100 W 太阳能泵浦碟形激光器

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2023-11-23 DOI: 10.1007/s10946-023-10178-y

Biqing Wang, Lanling Lan, Yan Liu, Yulong Tang, Yuanyuan Zhang

{"title":"Investigation of a 100 W Solar-Pumped Disk Laser with TEM00 Output","authors":"Biqing Wang, Lanling Lan, Yan Liu, Yulong Tang, Yuanyuan Zhang","doi":"10.1007/s10946-023-10178-y","DOIUrl":"10.1007/s10946-023-10178-y","url":null,"abstract":"<div><p>To improve the output power of solar-pumped lasers, we propose a new configuration of solar disk laser. A rotating parabolic reflector acts as the primary concentrator with top and bottom radii of 1600 and 600 mm, respectively. The incident sunlight is reflected by the primary concentrator to the inlet of the heteromorphic compound parabolic concentrator (HCPC) and is absorbed by the gain medium after multiple reflection. The diameter, thickness, and doping concentration of the Nd :YAG disk are 20 mm, 1 mm, and 1.0 at.%, respectively. The two surfaces of the disk are cooled by heavy water. Owing to the increased surface area of the disk for receiving sunlight, solar absorption by the gain medium is greatly improved. Ray tracing shows that maximum absorbed solar power by the Nd :YAG disk can reach 446 W through optimizing the HCPC. Solving rate equations, we obtain the laser output power in the TEM<sub>00</sub> mode as high as ∼123 W, with a conversion efficiency of ∼27%. In addition, we analyze the temperature distribution of the solar-pumped Nd :YAG disk laser. The design of this solar concentrating system and the over-hundred-watts disk laser provides a new idea for further scaling the output power of solar-pumped solid-state lasers.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139244553","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 Prototype Model of Laser Radar 激光雷达的原型模型

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2023-11-23 DOI: 10.1007/s10946-023-10159-1

Niranjan Kumar, Srest Somay

引用次数: 0

Coupled Nonlinear Optical Processes During Absorption by Manipulating the Induced Cubic Susceptibility 利用诱导立方磁化率控制吸收过程中的耦合非线性光学过程

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2023-11-23 DOI: 10.1007/s10946-023-10162-6

Rena J. Kasumova

{"title":"Coupled Nonlinear Optical Processes During Absorption by Manipulating the Induced Cubic Susceptibility","authors":"Rena J. Kasumova","doi":"10.1007/s10946-023-10162-6","DOIUrl":"10.1007/s10946-023-10162-6","url":null,"abstract":"<div><p>We present a theoretical study of the experimentally proved fact that, in perspective nonlinear materials with an absorption band in the tuning frequency range, two simultaneous three-wave processes are realized – optical parametric generation and generation of the second harmonic of an idler wave. The analysis is carried out, taking into account the depletion of the pump wave, the phase mismatch, and the losses of all interacting waves. These two three-wave processes can be phenomenologically described as an overall four-wave interaction of waves with a phase mismatch, which induces an effective third-order optical susceptibility in a nonlinear medium that exceeds the intrinsic third-order susceptibility of the medium. In the pump depletion regime, we give a more correct determination of the induced effective cubic susceptibility of a nonlinear medium and show that the effective cubic susceptibility depends on the intensities and coefficients of the nonlinear coupling of all interacting waves. Thus, by controlling the induced cubic susceptibility, it is possible to develop promising laser tunable sources through absorption bands in the UV and mid-IR spectral ranges.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138525129","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

Passive Q-Switched Operation of Tm:YAP Laser with Graphene/WS2 Heterostructure Saturable Absorber 带有石墨烯/WS2 异质结构可饱和吸收体的 Tm:YAP 激光器的无源 Q 开关操作

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2023-11-23 DOI: 10.1007/s10946-023-10177-z

Xiaolin Zhang, Yunbo Shi, Tianhao Zong, Bangzheng Liu, Yanna Mu, Lihong Liu

引用次数: 0

Broadband High-Resolution Stigmatic Spectral Imaging in the XUV Range XUV波段的宽带高分辨率污名化光谱成像

IF 0.9 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2023-08-29 DOI: 10.1007/s10946-023-10155-5

A. O. Kolesnikov, A. N. Shatokhin, E. A. Vishnyakov, E. N. Ragozin

引用次数: 0

Development of Nano-Photonic Structure for Implementation of Frequency Encoded Two-State Pauli X Gate 实现频率编码双态泡利X门的纳米光子结构的发展

IF 0.9 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2023-08-29 DOI: 10.1007/s10946-023-10153-7

Ayan Dey, Suranjan Lakshan, Sourangshu Mukhopadhyay

{"title":"Development of Nano-Photonic Structure for Implementation of Frequency Encoded Two-State Pauli X Gate","authors":"Ayan Dey, Suranjan Lakshan, Sourangshu Mukhopadhyay","doi":"10.1007/s10946-023-10153-7","DOIUrl":"10.1007/s10946-023-10153-7","url":null,"abstract":"<div><p>We develop an all-optical two-state Pauli X logic gate, using two-dimensional nano-photonic crystals (PhCs) based on photonic-crystal semiconductor optical amplifier switches (pc-SOA). An all-optical two-state Pauli X logic gate device is implemented by exploiting the cross-gain modulation property of pc-SOA (XGM) and the frequency encoding technique, which is constructed using a nano-structured photonic-crystal-based waveguide formed by a 2D square lattice of GaAsInP rods in the air background. The Pauli X gate is constructed within a two-input–two-output channel system. We confirm the operation of an all-optical two-state Pauli X logic gate by two sets of simulation experiments. For the simulation process, we use the finite-difference-time-domain (FDTD) and plane wave expansion (PWE) techniques. The frequency range of the band gap structure is determined in the transverse electric (TE) mode. The pc-SOA is used here for its highly-packed design, less consuming power, very high power transmission, and very good execution of the logic system. The simulation result at the output channels is also checked with the help of the cross-gain modulation (XGM) process. A two-state all-optical Pauli X gate device has a very fast response time (~1 ps), allowing for very fast optical information processing, which is helpful in the field of quantum computation. The speed of operation is on the order of 1 THz. The confinement of light is controlled and dominated by the nano-photonic crystal-based device (PhCs), and the frequency encoding technique can be exploited to improve the performance of the logic system.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"6642925","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