Applied Physics B最新文献_第9页

Second-order electrogyration effect in BSO crystal BSO 晶体中的二阶电能效应

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2024-10-20 DOI: 10.1007/s00340-024-08327-5

María Alejandra Guerrero-V, Jorge-Enrique Rueda-P

引用次数: 0

Correction to: Design of convex-shaped transparent heat spreaders for symmetrical cooling of a thin-disk laser crystal by mechanical pressing 更正：设计凸形透明散热器，通过机械压制对称冷却薄盘激光晶体

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2024-10-19 DOI: 10.1007/s00340-024-08340-8

Jan-Hinnerk Wolter, Andreas Voss, Thomas Graf, Marwan Abdou Ahmed

引用次数: 0

Optimizing laser surface texturing effect via synergy of Burst-mode and advanced scanning paths 通过爆破模式和先进扫描路径的协同作用优化激光表面纹理效果

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2024-10-18 DOI: 10.1007/s00340-024-08337-3

Yangdong Huang, Haoyang Ni, Xingsheng Wang

{"title":"Optimizing laser surface texturing effect via synergy of Burst-mode and advanced scanning paths","authors":"Yangdong Huang, Haoyang Ni, Xingsheng Wang","doi":"10.1007/s00340-024-08337-3","DOIUrl":"10.1007/s00340-024-08337-3","url":null,"abstract":"<div><p>Different laser surface texturing (LST) parameters produce varying effects, prompting the need to rationalize a strategy that optimizes structure for specific functionalities while maintaining manufacturing efficiency. This study applied square groove texturing to 304 stainless steel samples using a combination of scanning paths and Burst-mode to explore strategies that enhance texturing effect. In this paper, the texturing effect is quantified by texturing efficiency and surface quality. The square groove textures were manufactured using four scanning paths under picosecond lasers: 90°, 60°, circular, and horizontal-vertical reciprocating (HVR), along with Burst-mode at various pulses per burst (PPB). Multifactorial experiment systematically analyzed the texturing effect of various combination strategies. Additionally, this study established a geometric simulation model to validate the experimental results’ accuracy. Comparative analysis demonstrated that the simulation model effectively reflects the actual texturing results. The results indicated that this strategy achieves better texturing effect compared to traditional methods. Specifically, with the pulse number fixed at 2, the texturing efficiency of the horizontal-vertical reciprocating (HVR) scanning path is nearly twice that of the 60° scanning path, while also maintaining superior surface quality.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"130 11","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Two-mode subharmonic generating system with coherent and thermal light 利用相干光和热光的双模次谐波发生系统

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2024-10-17 DOI: 10.1007/s00340-024-08325-7

Lemma Tirfie Zegbreal, Deribe Hirpo

{"title":"Two-mode subharmonic generating system with coherent and thermal light","authors":"Lemma Tirfie Zegbreal, Deribe Hirpo","doi":"10.1007/s00340-024-08325-7","DOIUrl":"10.1007/s00340-024-08325-7","url":null,"abstract":"<div><p>The statistical and squeezing characteristics of the light generated by a two-mode subharmonic generating system in a cavity pumped by two-mode coherent light and coupled to a two-mode thermal reservoir through a single-port mirror have been studied in this study. We construct the c-number Langevin equations linked to the normal ordering using the master equation for the system under discussion, and we establish the correlation characteristics of the noise forces. The mean and variance of the photon number of the cavity light are then determined using the solutions of the resulting differential equations. We have discovered that the cavity light mode’s photon statistics are super-Poissonian because the variance of the photon number is more significant than the mean of the photon number. Additionally, using the same solutions, we were able to extract the antinormally ordered characteristic function, which is used to calculate the Q function. In addition, the photon number distribution for the cavity mode is computed using the Q function. The variance of the plus and minus quadrature of the two-mode cavity light generated by the two-mode subharmonic generating system is also obtained. It is discovered that the cavity mode’s squeezing characteristics are unaffected by the two-mode driving coherent light, however, the thermal light has the effect of decreasing the squeezing of the cavity light and the squeezing takes place in the plus quadrature. Finally, we discovered that when the cavity is coupled to a vacuum reservoir, there is a 50<span>(%)</span> maximum squeezing of the two-mode cavity at a steady state and at the threshold. The nondegenerate subharmonic generator generates a two-mode cavity light that is 50<span>(%)</span> entangled.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"130 11","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00340-024-08325-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stability enhancement of femtosecond optical parametric oscillator based on dispersion management 基于色散管理的飞秒光参量振荡器稳定性增强技术

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2024-10-14 DOI: 10.1007/s00340-024-08336-4

Hui Tong, Hua Wang, Wenlong Tian, Qian Li, Xuan Tian, Yanming Huang, Jiangfeng Zhu, Zhiyi Wei

引用次数: 0

Fabrication of optimized partial-reflection coatings for mid-infrared quantum cascade lasers 为中红外量子级联激光器制作优化的偏反射涂层

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2024-10-14 DOI: 10.1007/s00340-024-08329-3

Dominika Niewczas, Dorota Pierścińska, Grzegorz Sobczak, Paweł Kozłowski, Agata Krząstek, Tomasz Stefaniuk, Kamil Pierściński

{"title":"Fabrication of optimized partial-reflection coatings for mid-infrared quantum cascade lasers","authors":"Dominika Niewczas, Dorota Pierścińska, Grzegorz Sobczak, Paweł Kozłowski, Agata Krząstek, Tomasz Stefaniuk, Kamil Pierściński","doi":"10.1007/s00340-024-08329-3","DOIUrl":"10.1007/s00340-024-08329-3","url":null,"abstract":"<div><p>This study presents both numerical modeling and experimental fabrication of three different partial-reflection (PR) coatings each optimized for quantum cascade lasers (QCLs) that emit radiation in the mid-infrared range. A novel double-layer PR coating comprising silicon dioxide (SiO<sub>2)</sub> and silicon nitride (Si<sub>3</sub>N<sub>4</sub>) was proposed as a potential solution for compatibility with QCLs fabrication processes. Subsequently, the PR coating was compared with two well-known PR coatings: a single layer of aluminum oxide (Al<sub>2</sub>O<sub>3</sub>) and a single layer of yttrium oxide (Y<sub>2</sub>O<sub>3</sub>). The coatings were designed to reduce the reflectivity of the front laser mirror from 30% to approximately 13%. The thickness of the dielectric layers was optimized for lasers emitting at 4.4 μm, with applicability in the 2.5–6 μm range. The proposed double-layer coating achieved the desired reflectivity while reducing the total coating thickness by 120 nm. By using the presented coatings it will be possible to increase the optical power of Mid-Infrared QCLs.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"130 11","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00340-024-08329-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142430980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Beam instability of broadband stochastic laser fields 宽带随机激光场的光束不稳定性

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2024-10-09 DOI: 10.1007/s00340-024-08300-2

Aleksei M. Zheltikov, Alexei V. Sokolov, Zhenhuan Yi, Girish S. Agarwal, J. Gary Eden, Marlan O. Scully

{"title":"Beam instability of broadband stochastic laser fields","authors":"Aleksei M. Zheltikov, Alexei V. Sokolov, Zhenhuan Yi, Girish S. Agarwal, J. Gary Eden, Marlan O. Scully","doi":"10.1007/s00340-024-08300-2","DOIUrl":"10.1007/s00340-024-08300-2","url":null,"abstract":"<div><p>Unlike the deterministic theory of modulation instability (MI), which describes this process in terms of a well-defined gain spectrum and a well-resolved threshold, the statistical treatment of MIs, presented in this study, is concerned with a question as to how probable MI-driven beam-instability events are. We show that stochastic laser beams that nominally meet the deterministic beam-stability criterion can emerge as unstable on large pulse samples. With the laser peak power set well below the deterministic MI threshold, the count rate of MI-driven beam-instability events within a large sample of laser pulses is shown to be Poissonian-distributed, with its mean defined by the exponent of the extreme-event beam-instability statistics. We present a closed-form analytical solution for this beam-instability count rate, revealing the key tendencies in its behavior as a function of the signal-to-noise ratio and the bandwidth of its noise component. We demonstrate that the stochastic beam-instability dynamics of high-power laser field waveforms, including the laser pulses used for the ignition of inertial confinement fusion, can be scaled down in laser power and studied in laboratory-scale laser experiments.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"130 11","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142411052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Experimental setup for the determination of spectral normal emissivity of conductive materials in the 1–18 μm wavelength range at 300–1700 °C in air 在 300-1700 °C 的空气中测定导电材料在 1-18 μm 波长范围内的光谱法向发射率的实验装置

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2024-10-08 DOI: 10.1007/s00340-024-08331-9

R. A. Mironov, A. E. Kryukov, A. O. Zabezhaylov, M. O. Zabezhaylov, M. Y. Rusin

{"title":"Experimental setup for the determination of spectral normal emissivity of conductive materials in the 1–18 μm wavelength range at 300–1700 °C in air","authors":"R. A. Mironov, A. E. Kryukov, A. O. Zabezhaylov, M. O. Zabezhaylov, M. Y. Rusin","doi":"10.1007/s00340-024-08331-9","DOIUrl":"10.1007/s00340-024-08331-9","url":null,"abstract":"<div><p>This article describes the measurement procedure and data processing features of an apparatus for measuring the spectral emissivity of electrically conductive opaque materials in air. The developed laboratory setup has the following three main features: induction heating of the sample, correction in order to exclude the surrounding radiation reflected by the sample, and the use of multiwavelength pyrometry. Single-sided induction heating of the sample eliminates the contribution of stray radiation from the heating element to the recorded signal. The correction on surrounding radiation increases the accuracy of emissivity determination, especially at low temperatures. The multiwavelength pyrometry is used to obtain the true temperature of a sample. This technique makes it possible to obtain the surface temperature of the sample directly from its thermal radiation spectrum, allowing to examine the material during the oxidation process. The emissivity spectra of zirconium and hafnium diboride samples were measured with the created setup. The obtained spectra reveal several features, which correlate with chemical transformations on the surface of the materials during oxidation.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"130 11","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Rydberg-atom acceleration with pulsed Pearcey beams 利用脉冲皮尔斯光束进行雷德贝格原子加速

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2024-10-05 DOI: 10.1007/s00340-024-08318-6

Songxin Huang, Weiyi Hong, Ruihuan Wu

引用次数: 0

Advancing tunable structured light with PT-symmetric dammann grating metasurfaces 利用 PT 对称达曼光栅元表面推进可调谐结构光的发展

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2024-10-02 DOI: 10.1007/s00340-024-08328-4

Xiang Cai, Zhiwei Shi, Huan Jiang, Yaohua Deng

{"title":"Advancing tunable structured light with PT-symmetric dammann grating metasurfaces","authors":"Xiang Cai, Zhiwei Shi, Huan Jiang, Yaohua Deng","doi":"10.1007/s00340-024-08328-4","DOIUrl":"10.1007/s00340-024-08328-4","url":null,"abstract":"<div><p>Using Dammann grating (DG) metasurfaces enables miniaturization and integration of devices for generating structured light, allowing them to be used in different applications with different types or working wavelengths of structured light. However, most existing DG metasurfaces are based on Hermitian photon systems, and there has been no exploration of the results of DG metasurfaces under non-Hermitian photon system conditions. In this study, we numerically constructed a non-Hermitian DG metasurface with parity-time (PT) symmetry of the adjacent silicon dioxide substrate and lithium niobate (LiNbO3, LN) nanorods. Simulation results have demonstrated that introducing PT symmetry into DG metasurfaces alters their response wavelengths, leading to changes in the structured light patterns. To further investigate the effects introduced by incorporating PT symmetry into diffraction gratings, we have also designed two types of pseudo-Dammann gratings (PDG), namely, annular PDG and cross-shaped PDG. Incorporating PT symmetry into PDG not only improved the uniformity of the diffracted light spot arrays but also altered the distribution arrangement of the spots in one type of PDG, enabling the generation of novel and unique structured light patterns in the far field. This study theoretically proposed a PT-symmetric and dynamically tunable metasurface structure, providing a new approach for the design, control, and fabrication of dynamically adjustable optical components.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"130 11","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142409508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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