Review of Scientific Instruments最新文献_第10页

Square wave linear transformer driver based on the Blumlein-type pulse forming network and pseudospark switch. 基于blumlein型脉冲形成网络和伪火花开关的方波线性变压器驱动器。

IF 1.3 4区工程技术

Review of Scientific Instruments Pub Date : 2025-05-01 DOI: 10.1063/5.0259175

Qi Yuan, Shengyu Tang, Weidong Ding, Kunhao Yu, Guoxiang Sun, Shaohao Nie, Haorui Xue, Yuchen Cheng, Penghui Li

{"title":"Square wave linear transformer driver based on the Blumlein-type pulse forming network and pseudospark switch.","authors":"Qi Yuan, Shengyu Tang, Weidong Ding, Kunhao Yu, Guoxiang Sun, Shaohao Nie, Haorui Xue, Yuchen Cheng, Penghui Li","doi":"10.1063/5.0259175","DOIUrl":"https://doi.org/10.1063/5.0259175","url":null,"abstract":"High-voltage square-wave pulses have significant potential in fields such as high power microwave and flash photography. It puts forward higher requirements on the pulse generator: fast front, flat-top, and a miniaturized, compact structure. To address these challenges, this paper presents a square-wave formation approach based on the combination of three advanced technologies: the multichannel pseudospark switch (MCPSS), which offers fast conduction, high power, and high frequency; the Blumlein-type pulse forming network (BPFN), known for its high voltage transfer efficiency, long electrical length, and ease of parameter adjustment; and the linear transformer driver (LTD), which features a modular structure and fast front. A single-stage LTD module is developed, and the waveform modulation techniques are discussed. Single-gap MCPSS, unequal-capacitance BPFN, and a magnetic switch are utilized to optimize output waveform. A square wave pulse with a voltage of 25.0 kV, a tf of 24.9 ns, a full width at half maximum of 94.3 ns, and a flat-top bottom width (tbw) of 77.8 ns (90% Umax ∼ 90% Umax) is achieved on a matched resistive load.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"96 5","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144036623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigations of optical aberration on quantum diamond microscopy toward high spatial resolution and sensitivity. 面向高空间分辨率和高灵敏度的量子金刚石显微镜光学像差研究。

IF 1.3 4区工程技术

Review of Scientific Instruments Pub Date : 2025-05-01 DOI: 10.1063/5.0204566

Shunsuke Nishimura, Moeta Tsukamoto, Kento Sasaki, Kensuke Kobayashi

{"title":"Investigations of optical aberration on quantum diamond microscopy toward high spatial resolution and sensitivity.","authors":"Shunsuke Nishimura, Moeta Tsukamoto, Kento Sasaki, Kensuke Kobayashi","doi":"10.1063/5.0204566","DOIUrl":"https://doi.org/10.1063/5.0204566","url":null,"abstract":"Quantum diamond microscopy (QDM), which employs nitrogen-vacancy (NV) center ensembles, is a promising approach to quantitatively imaging magnetic fields with both high resolution that approaches the diffraction limit and a wide field of view. The commonly adopted setups of QDM capture the photoluminescence through transparent diamonds, which inevitably entail aberrations-optical errors that degrade the optical resolution and contrast of the obtainable image. In this study, we delve into the impact of optical aberrations, focusing on their dependence on diamond thickness. We first introduce a rigorous model [B. Richards et al., Proc. R. Soc. London, Ser. A 253, 358-379 (1959) and J. Braat et al., J. Opt. Soc. Am. A 20, 2281-2292 (2003)] of diffraction that incorporates aberrations, producing the NV center optical image. We confirm that this model accurately reproduces the confocal images of single NV centers obtained at various depths in diamonds. Extending this model to a wide-field microscope, we find that the model also accurately reproduces the USAF 1951 resolution test chart obtained through diamonds of various thicknesses. Based on these investigations, we quantitatively assess the consequent resolution constraints and propose thinning the diamond as a viable solution. We present a robust method to quantitatively ascertain resolution in optical systems influenced by aberrations caused by ray transmission through diamonds. For instance, for a typical microscope with an objective lens of NA = 0.7, the diffraction limit is achievable through diamonds that are 30 μm thick, and a resolution of 1 μm is obtained through diamonds that are 100 μm thick. Those results open up avenues for enhanced performance in QDM.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"96 5","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144079904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cryogenic optically detected magnetic resonance (ODMR) platform based on all-room-temperature scanning systems. 基于全室温扫描系统的低温光探测磁共振（ODMR）平台。

IF 1.3 4区工程技术

Review of Scientific Instruments Pub Date : 2025-05-01 DOI: 10.1063/5.0230895

Yixuan Wang, Jinpeng Liu, Xi Kong, Min Li, Wentao Ji, Mengqi Wang, Xiangyu Ye, Peihan Lei, Haodong Wang, Ya Wang, Pengfei Wang, Qi Zhang, Fazhan Shi, Jiangfeng Du

{"title":"Cryogenic optically detected magnetic resonance (ODMR) platform based on all-room-temperature scanning systems.","authors":"Yixuan Wang, Jinpeng Liu, Xi Kong, Min Li, Wentao Ji, Mengqi Wang, Xiangyu Ye, Peihan Lei, Haodong Wang, Ya Wang, Pengfei Wang, Qi Zhang, Fazhan Shi, Jiangfeng Du","doi":"10.1063/5.0230895","DOIUrl":"https://doi.org/10.1063/5.0230895","url":null,"abstract":"The nitrogen-vacancy center in diamond serves as a nanoscale multi-sensor for precise magnetic and electric field measurements in optically detected magnetic resonance (ODMR) experiments. The ODMR system at cryogenic temperatures can be employed for the exploration of significant physical phenomena, such as two-dimensional ferromagnetism and current transport dynamics. Conventional systems, however, suffer from limited scanning range, low load capacity, and instability due to their reliance on cryogenic scanning mechanisms to manipulate samples, objective, and magnetic components. Here, we present a cryogenic ODMR platform utilizing all room-temperature scanning systems, enabling stable operation from 300 to 10.6 K. Our design achieves a positioner motion range of >5 cm and makes it possible to range from 50 to 5000 G, addressing critical challenges in applications requiring large-scale magnetic field scanning and broad temperature range experiments, such as quantum relaxometry studies. The system exhibits high robustness (vibrations <50 nm), high load capacity, cost-effectiveness, and ease of maintenance. Furthermore, our approach can also be directly applied to other promising quantum bit platforms, such as solid-state spin defects in silicon carbide (SiC) and so on.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"96 5","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144187796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Active stabilization of laser diode injection using a polarization-spectroscopy technique. 利用偏振光谱技术实现激光二极管注入的主动稳定。

IF 1.3 4区工程技术

Review of Scientific Instruments Pub Date : 2025-05-01 DOI: 10.1063/5.0249681

Luka Milanovic, Greg Ferrero, Robin Oswald, Thomas Kinder, Julian Schmidt, Cornelius Hempel

引用次数: 0

Visible self-emission and laser imaging diagnostics for the Z Machine. Z机的可见光自发射和激光成像诊断。

IF 1.3 4区工程技术

Review of Scientific Instruments Pub Date : 2025-05-01 DOI: 10.1063/5.0267018

D A Yager-Elorriaga, M M Montoya, P A Reyes, M C Lowinske, D E Bliss, J E Potter, T A Breckenridge, A Truong, E Lian, S W Cordaro, J Schwarz

{"title":"Visible self-emission and laser imaging diagnostics for the Z Machine.","authors":"D A Yager-Elorriaga, M M Montoya, P A Reyes, M C Lowinske, D E Bliss, J E Potter, T A Breckenridge, A Truong, E Lian, S W Cordaro, J Schwarz","doi":"10.1063/5.0267018","DOIUrl":"https://doi.org/10.1063/5.0267018","url":null,"abstract":"We present an overview of visible self-emission and laser imaging diagnostics for the Z Machine at Sandia National Laboratories. First, we review the Self-Emission Gated Optical Imager (SEGOI) diagnostic. SEGOI utilizes the Z Line Velocity Interferometer System for Any Reflector (Z Line VISAR) imaging relay system and detectors with a modified in-chamber optical configuration that is more flexible and significantly lower in cost. Detectors include eight intensified CCD (ICCD) cameras (540-600 nm) and two streak cameras (532 nm). The choice of in-chamber lens is flexible and determines the field-of-view (6.8-14 mm) and spatial resolution (∼32-74 μm edge widths). Next, we review the Laser Imaging on Z (LIONZ) diagnostic. LIONZ injects an open-beam 532 nm laser into the Z chamber via the Z Line VISAR beam transport system. This beam is redirected to the back of the target and then collected utilizing SEGOI. An additional 4-frame ICCD camera collects laser shadowgraphs, and one or both of the SEGOI streak cameras may be configured for streaked shadowgraphy, while the eight ICCD cameras for SEGOI may be simultaneously fielded for self-emission imaging. Currently, two open beam lasers with adjustable trigger times and a full-width-half-maximum of 20 ns are injected. Together, SEGOI and LIONZ offer valuable insight into the dynamics of low density plasmas on Z.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"96 5","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144161586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of a solar radiation measuring instrument for building energy management system. 建筑能源管理系统太阳辐射测量仪的研制。

IF 1.3 4区工程技术

Review of Scientific Instruments Pub Date : 2025-05-01 DOI: 10.1063/5.0243744

Jie Yang, Xiaotian Wang, Lin Li, Keya Yuan

{"title":"Development of a solar radiation measuring instrument for building energy management system.","authors":"Jie Yang, Xiaotian Wang, Lin Li, Keya Yuan","doi":"10.1063/5.0243744","DOIUrl":"https://doi.org/10.1063/5.0243744","url":null,"abstract":"Excellent architectural design, energy-efficient control systems, and smart home technologies need to take into account the influence of solar radiation. Therefore, there is a necessity for high-precision measurement of solar radiation. However, existing solar radiation instruments are susceptible to environmental factors such as wind speed, air temperature, and air density, resulting in significant measurement errors. Therefore, this paper proposes the design of a solar radiation measurement instrument based on the thermoelectric effect. By integrating neural network algorithms, this instrument can mitigate the influence of environmental factors on solar radiation measurement. First, employing computational fluid dynamics (CFD) for multi-physics simulations of the instrument yielded solar radiation values under various environmental parameters. Subsequently, employing neural network algorithms to train and learn from the CFD simulation results, a quantitative relationship between solar radiation values and environmental parameters was established. This formed a radiation measurement error correction algorithm to mitigate the influence of environmental parameters on solar radiation observation results. Finally, constructing a radiation observation platform validated the measurement accuracy of the instrument. The experimental results indicate that the maximum radiation error of the new instrument is -3.97%, with an average radiation error of -0.16%, and the full-scale radiation error is less than 3.88%.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"96 5","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144111826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrical conductivity measurements of aqueous fluids under crustal conditions in multi-anvil apparatus. 多砧仪器中地壳条件下含水流体的电导率测量。

IF 1.3 4区工程技术

Review of Scientific Instruments Pub Date : 2025-05-01 DOI: 10.1063/5.0231628

Jinyan Wu, Haiying Hu, Lidong Dai, Ziming Hu, Song Luo

{"title":"Electrical conductivity measurements of aqueous fluids under crustal conditions in multi-anvil apparatus.","authors":"Jinyan Wu, Haiying Hu, Lidong Dai, Ziming Hu, Song Luo","doi":"10.1063/5.0231628","DOIUrl":"https://doi.org/10.1063/5.0231628","url":null,"abstract":"The electrical conductivity of aqueous fluids is critical for interpreting the electrical anomalies observed by magnetotellurics in the Earth's crust. Conductivity measurements of fluids at high temperature and pressure were mainly conducted in cold-sealed pressure vessels, hydrothermal diamond anvil cells, and piston-cylinder apparatus, by using precious metals, such as Pt-Rh or Au-Pd as sample capsules. However, this research has never been performed in a multi-anvil apparatus. In addition, metal capsules employed in previous studies were costly and difficult to manufacture mechanically in the laboratory. In this study, we designed a novel, economical, chemical inertness, and tractable sample capsule made of polytetrafluoroethylene (PTFE), and by using this capsule, we successfully measured the conductivity of NaCl solutions in a multi-anvil apparatus under conditions of 323-598 K and 0.5-1.0 GPa. Our results are consistent with those from diamond anvil cells and piston-cylinder apparatus. Besides being used in conductivity measurement, the new and low-cost method has potential applications for investigating other physicochemical properties, such as rock-water interactions and fluid sound velocity under shallow crustal conditions. Furthermore, higher temperature and pressure can be realized by replacing the PTFE components with metallic materials, enabling more extensive exploration of fluid behavior in the Earth's deep interior.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"96 5","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143981055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Zero kinetic energy spectroscopy of photofragment based on ion velocity map imaging. 基于离子速度图成像的光片零动能谱。

IF 1.3 4区工程技术

Review of Scientific Instruments Pub Date : 2025-05-01 DOI: 10.1063/5.0260546

Gaoming Hu, Youqing Li, Hongxiang Lu, Zhenzhen Li, Yang Chen, Dongfeng Zhao

{"title":"Zero kinetic energy spectroscopy of photofragment based on ion velocity map imaging.","authors":"Gaoming Hu, Youqing Li, Hongxiang Lu, Zhenzhen Li, Yang Chen, Dongfeng Zhao","doi":"10.1063/5.0260546","DOIUrl":"https://doi.org/10.1063/5.0260546","url":null,"abstract":"We present the Zero Kinetic Energy spectroscopy of photoFragment (ZKEF) to determine the dissociation energy and product quantum state distributions in unimolecular photodissociation dynamics involving significant internal state excitation of photofragments. This method is based on the ion velocity map imaging (VMI) technique, by recording the photofragment signals with nearly zero kinetic energy as a function of photoexcitation energy, and thus benefits from the highest achievable energy resolution of VMI. The ZKEF spectrum directly relates to the internal energy levels of photofragments and the difference between the photoexcitation energy and the dissociation energy. Application experiments using ZKEF on the photodissociation dynamics of KrO2+ have yielded a determination of the dissociation energy of D0(Kr - O2+) = 0.222 eV, with an unprecedented accuracy of ∼1 meV. Based on this parameter, the rotational state distributions of photofragmented O2 have also been determined, demonstrating the potentials of ZKEF for high resolution characterization of photofragment quantum state distributions in photodissociation reactions.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"96 5","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144021483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Compact in situ probe for magnetotransport measurements of 2D materials under variable tensile strain. 用于测量可变拉伸应变下二维材料磁输运的紧凑原位探头。

IF 1.3 4区工程技术

Review of Scientific Instruments Pub Date : 2025-05-01 DOI: 10.1063/5.0254677

Bai Yang Wang, Xin Wei, Yijun Yu, Aviv Simchony, Harold Y Hwang

{"title":"Compact in situ probe for magnetotransport measurements of 2D materials under variable tensile strain.","authors":"Bai Yang Wang, Xin Wei, Yijun Yu, Aviv Simchony, Harold Y Hwang","doi":"10.1063/5.0254677","DOIUrl":"https://doi.org/10.1063/5.0254677","url":null,"abstract":"The recent development of freestanding oxide membranes has opened new opportunities for strain engineering of transition metal oxides beyond values accessible in bulk samples. While a number of studies have been performed with fixed strain, the ability to dynamically control the strain state during measurement would be greatly enabling. To this end, we present an in situ uniaxial strain probe optimized for transport measurements of tensile-strained 2D or quasi-2D materials down to 2 K. Utilizing a flexible polyimide substrate as the stress transfer medium, our platform simplifies the sample preparation process and allows precise alignment of strain fields relative to the crystalline axes. An in situ optical microscope monitors the macroscopic strain state operando and makes it possible to complete an entire magnetotransport study at cryogenic temperatures under continuous strain variations. We demonstrate the capabilities of the probe on a freestanding LaNiO3 membrane, where we induce tensile strain up to 8% and observe a corresponding strong transport anisotropy. In view of the rapid developments in low-dimensional materials synthesis and the plethora of novel quantum phenomena they exhibit, this strain probe provides general instrumentation for examining and controlling these properties via strain.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"96 5","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143981392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Precision magnetometry at cryogenic temperatures with gaseous 3He NMR probes. 在低温下用气态3He核磁共振探针进行精密磁强计。

IF 1.3 4区工程技术

Review of Scientific Instruments Pub Date : 2025-05-01 DOI: 10.1063/5.0258240

P Blümler, M Fertl, H-J Grafe, R Graf, W Heil

引用次数: 0