Journal of the Optical Society of America and Review of Scientific Instruments最新文献_第9页

Objective evaluation of wearable thermoelectric generator: From platform building to performance verification. 可穿戴热电发电机的客观评价:从搭建平台到性能验证。

Journal of the Optical Society of America and Review of Scientific Instruments Pub Date : 2022-04-01 DOI: 10.1063/5.0087672

Zhuoming Xu, Dongwang Yang, Xiong Yuan, Siheng Hua, Hanjing You, Yubing Xing, Kai Hu, Jiang Wang, Yani Xiao, Yonggao Y. Yan, Xinfeng Tang

{"title":"Objective evaluation of wearable thermoelectric generator: From platform building to performance verification.","authors":"Zhuoming Xu, Dongwang Yang, Xiong Yuan, Siheng Hua, Hanjing You, Yubing Xing, Kai Hu, Jiang Wang, Yani Xiao, Yonggao Y. Yan, Xinfeng Tang","doi":"10.1063/5.0087672","DOIUrl":"https://doi.org/10.1063/5.0087672","url":null,"abstract":"Wearable thermoelectric generators can harvest heat from the human body to power an intelligent electronic device, which plays an important role in wearable electronics. However, due to the complexity of human skin, there is still no unified standard for performance testing of wearable thermoelectric generators under wearable conditions. Herein, a test platform suitable for a wearable thermoelectric generator was designed and built by simulating the structure of the arm. Based on the biological body temperature regulation function, water flow and water temperature substitute blood flow and blood temperature, the silicone gel with some thickness simulates the skin layer of the human arm, thus achieving the goal of adjusting the thermal resistance of human skin. Meanwhile, the weight is used as the contact pressure to further ensure the reliability and accuracy of the test data. In addition, the environment regulatory system is set up to simulate the outdoor day. Actually, the maximum deviation of the performance of the thermoelectric generator worn on the test platform and human arm is ∼5.2%, indicating the accuracy of objective evaluation.","PeriodicalId":54761,"journal":{"name":"Journal of the Optical Society of America and Review of Scientific Instruments","volume":"1 1","pages":"045105"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91242748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Nanoscale multiply charged focused ion beam platform for surface modification, implantation, and analysis. 用于表面修饰、注入和分析的纳米级多电荷聚焦离子束平台。

Journal of the Optical Society of America and Review of Scientific Instruments Pub Date : 2022-04-01 DOI: 10.1063/5.0078914

M. Lalande, P. Salou, A. Houel, T. Been, Thierry Birou, C. Bourin, A. Cassimi, A. Keizer, Jean-Baptiste Mellier, J. Ramillon, A. Sineau, A. Delobbe, S. Guillous

引用次数: 0

Design and implementation of a device based on an off-axis parabolic mirror to perform luminescence experiments in a scanning tunneling microscope. 基于离轴抛物面镜的扫描隧道显微镜发光实验装置的设计与实现。

Journal of the Optical Society of America and Review of Scientific Instruments Pub Date : 2022-04-01 DOI: 10.1063/5.0078423

Ricardo Javier Peña Román, Y. Auad, Lucas Grasso, L. Padilha, F. Alvarez, I. Barcelos, M. Kociak, L. Zagonel

{"title":"Design and implementation of a device based on an off-axis parabolic mirror to perform luminescence experiments in a scanning tunneling microscope.","authors":"Ricardo Javier Peña Román, Y. Auad, Lucas Grasso, L. Padilha, F. Alvarez, I. Barcelos, M. Kociak, L. Zagonel","doi":"10.1063/5.0078423","DOIUrl":"https://doi.org/10.1063/5.0078423","url":null,"abstract":"We present the design, implementation, and illustrative results of a light collection/injection strategy based on an off-axis parabolic mirror collector for a low-temperature Scanning Tunneling Microscope (STM). This device allows us to perform STM induced Light Emission (STM-LE) and Cathodoluminescence (STM-CL) experiments and in situ Photoluminescence (PL) and Raman spectroscopy as complementary techniques. Considering the Étendue conservation and using an off-axis parabolic mirror, it is possible to design a light collection and injection system that displays 72% of collection efficiency (considering the hemisphere above the sample surface) while maintaining high spectral resolution and minimizing signal loss. The performance of the STM is tested by atomically resolved images and scanning tunneling spectroscopy results on standard sample surfaces. The capabilities of our system are demonstrated by performing STM-LE on metallic surfaces and two-dimensional semiconducting samples, observing both plasmonic and excitonic emissions. In addition, we carried out in situ PL measurements on semiconducting monolayers and quantum dots and in situ Raman on graphite and hexagonal boron nitride (h-BN) samples. Additionally, STM-CL and PL were obtained on monolayer h-BN gathering luminescence spectra that are typically associated with intragap states related to carbon defects. The results show that the flexible and efficient light injection and collection device based on an off-axis parabolic mirror is a powerful tool to study several types of nanostructures with multiple spectroscopic techniques in correlation with their morphology at the atomic scale and electronic structure.","PeriodicalId":54761,"journal":{"name":"Journal of the Optical Society of America and Review of Scientific Instruments","volume":"357 1","pages":"043704"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76340266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A GPS-enabled seabed sediment sampler: Recovery efficiency and efficacy. 具有gps功能的海底沉积物采样器:回收效率和效果。

Journal of the Optical Society of America and Review of Scientific Instruments Pub Date : 2022-04-01 DOI: 10.1063/5.0077269

W. Hunt, M. J. Joyce

引用次数: 0

Comparative analysis of recirculating and collimating cesium ovens. 循环式和准直式铯炉的对比分析。

Journal of the Optical Society of America and Review of Scientific Instruments Pub Date : 2022-04-01 DOI: 10.1063/5.0085838

R. Hahn, T. Battard, Oscar Boucher, Y. Picard, H. Lignier, D. Comparat, Nolwenn-Amandine Keriel, Colin Lopez, Emanuel Oswald, M. Reveillard, M. Viteau

引用次数: 3

A concept of a broadband inverted geometry spectrometer for the Second Target Station at the Spallation Neutron Source. 散裂中子源第二靶站宽带倒几何谱仪的概念。

Journal of the Optical Society of America and Review of Scientific Instruments Pub Date : 2022-04-01 DOI: 10.1063/5.0086451

E. Mamontov, C. Boone, M. Frost, K. Herwig, T. Huegle, J. Y. Y. Lin, B. McCormick, W. McHargue, A. Stoica, P. Torres, W. Turner

{"title":"A concept of a broadband inverted geometry spectrometer for the Second Target Station at the Spallation Neutron Source.","authors":"E. Mamontov, C. Boone, M. Frost, K. Herwig, T. Huegle, J. Y. Y. Lin, B. McCormick, W. McHargue, A. Stoica, P. Torres, W. Turner","doi":"10.1063/5.0086451","DOIUrl":"https://doi.org/10.1063/5.0086451","url":null,"abstract":"BWAVES is an acronym for Broadband Wide-Angle VElocity Selector spectrometer, indicating that a novel WAVES (Wide-Angle VElocity Selector) device will be used to select the velocity/wavelength of the detected neutrons after they are scattered by the sample. We describe a conceptual design of BWAVES, a time-of-flight broadband inverted-geometry neutron spectrometer for the Second Target Station at the Spallation Neutron Source operated by Oak Ridge National Laboratory. Being the first inverted geometry spectrometer where the energy of the detected neutrons can be chosen by a WAVES device mechanically, irrespective of the limitations imposed by the crystal analyzers or filters, BWAVES will feature a uniquely broad, continuous dynamic range of measurable energy transfers, spanning 4.5 decades. This will enable measurements of both vibrational and relaxational excitations within the same, continuous scattering spectra. Novel approaches that are necessary for the implementation of a WAVES device at the BWAVES spectrometer will result in a spectrometer with the design and characteristics much different from those displayed by the neutron spectrometers in existence today.","PeriodicalId":54761,"journal":{"name":"Journal of the Optical Society of America and Review of Scientific Instruments","volume":"33 1","pages":"045101"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83927767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Bootstrap estimation of the effect of instrument response function uncertainty on the reconstruction of fusion neutron sources. 仪器响应函数不确定性对聚变中子源重建影响的自举估计。

Journal of the Optical Society of America and Review of Scientific Instruments Pub Date : 2022-04-01 DOI: 10.1063/5.0086450

Kevin M. Lamb, V. Geppert-Kleinrath, N. Birge, C. Danly, L. Divol, D. Fittinghoff, M. Freeman, A. Pak, C. Wilde, A. Zylstra, P. Volegov

{"title":"Bootstrap estimation of the effect of instrument response function uncertainty on the reconstruction of fusion neutron sources.","authors":"Kevin M. Lamb, V. Geppert-Kleinrath, N. Birge, C. Danly, L. Divol, D. Fittinghoff, M. Freeman, A. Pak, C. Wilde, A. Zylstra, P. Volegov","doi":"10.1063/5.0086450","DOIUrl":"https://doi.org/10.1063/5.0086450","url":null,"abstract":"Neutron imagers are important diagnostics for the inertial confinement fusion implosions at the National Ignition Facility. They provide two- and three-dimensional reconstructions of the neutron source shape that are key indicators of the overall performance. To interpret the shape results properly, it is critical to estimate the uncertainty in those reconstructions. There are two main sources of uncertainties: limited neutron statistics, leading to random errors in the reconstructed images, and incomplete knowledge of the instrument response function (the pinhole-dependent point spread function). While the statistical errors dominate the uncertainty for lower yield deuterium-tritium (DT) shots, errors due to the instrument response function dominate the uncertainty for DT yields on the order of 1016 neutrons or higher. In this work, a bootstrapping method estimates the uncertainty in a reconstructed image due to the incomplete knowledge of the instrument response function. The main reconstruction is created from the fixed collection of pinhole images that are best aligned with the neutron source. Additional reconstructions are then built using subsets of that collection of images. Variations in the shapes of these additional reconstructions originate solely from uncertainties in the instrument response function, allowing us to use them to provide an additional systematic uncertainty estimate.","PeriodicalId":54761,"journal":{"name":"Journal of the Optical Society of America and Review of Scientific Instruments","volume":"29 1","pages":"043508"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78580219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 high-efficiency gaseous elemental radioiodine generator. 高效气态元素放射性碘发生器的研制。

Journal of the Optical Society of America and Review of Scientific Instruments Pub Date : 2022-04-01 DOI: 10.1063/5.0086793

C. Zhao, Y. Chen, J. Liu

引用次数: 0

Development of a near-5-Kelvin, cryogen-free, pulse-tube refrigerator-based scanning probe microscope. 近5开尔文，无低温，基于脉冲管制冷机的扫描探针显微镜的研制。

Journal of the Optical Society of America and Review of Scientific Instruments Pub Date : 2022-04-01 DOI: 10.1063/5.0084888

J. Kasai, Tomoki Koyama, M. Yokota, K. Iwaya

{"title":"Development of a near-5-Kelvin, cryogen-free, pulse-tube refrigerator-based scanning probe microscope.","authors":"J. Kasai, Tomoki Koyama, M. Yokota, K. Iwaya","doi":"10.1063/5.0084888","DOIUrl":"https://doi.org/10.1063/5.0084888","url":null,"abstract":"We report the design and performance of a cryogen-free, pulse-tube refrigerator (PTR)-based scanning probe microscopy (SPM) system capable of operating at a base temperature of near 5 K. We achieve this by combining a home-made interface design between the PTR cold head and the SPM head, with an automatic gas-handling system. The interface design isolates the PTR vibrations by a combination of polytetrafluoroethylene and stainless-steel bellows and by placing the SPM head on a passive vibration isolation table via two cold stages that are connected to thermal radiation shields using copper heat links. The gas-handling system regulates the helium heat-exchange gas pressures, facilitating both the cooldown to and maintenance of the base temperature. We discuss the effects of each component using measured vibration, current-noise, temperature, and pressure data. We demonstrate that our SPM system performance is comparable to known liquid-helium-based systems with the measurements of the superconducting gap spectrum of Pb, atomic-resolution scanning tunneling microscopy image and quasiparticle interference pattern of Au(111) surface, and non-contact atomic force microscopy image of NaCl(100) surface. Without the need for cryogen refills, the present SPM system enables uninterrupted low-temperature measurements.","PeriodicalId":54761,"journal":{"name":"Journal of the Optical Society of America and Review of Scientific Instruments","volume":"21 1","pages":"043711"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88303639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

An ion mobility mass spectrometer coupled with a cryogenic ion trap for recording electronic spectra of charged, isomer-selected clusters. 离子迁移率质谱仪与低温离子阱耦合，用于记录带电的电子能谱，异构体选择簇。

Journal of the Optical Society of America and Review of Scientific Instruments Pub Date : 2022-04-01 DOI: 10.1063/5.0085680

Jack T Buntine, E. Carrascosa, J. Bull, U. Jacovella, M. I. Cotter, Patrick Watkins, Chang Liu, M. S. Scholz, B. Adamson, Samuel J P Marlton, E. Bieske

{"title":"An ion mobility mass spectrometer coupled with a cryogenic ion trap for recording electronic spectra of charged, isomer-selected clusters.","authors":"Jack T Buntine, E. Carrascosa, J. Bull, U. Jacovella, M. I. Cotter, Patrick Watkins, Chang Liu, M. S. Scholz, B. Adamson, Samuel J P Marlton, E. Bieske","doi":"10.1063/5.0085680","DOIUrl":"https://doi.org/10.1063/5.0085680","url":null,"abstract":"Infrared and electronic spectra are indispensable for understanding the structural and energetic properties of charged molecules and clusters in the gas phase. However, the presence of isomers can potentially complicate the interpretation of spectra, even if the target molecules or clusters are mass-selected beforehand. Here, we describe an instrument for spectroscopically characterizing charged molecular clusters that have been selected according to both their isomeric form and their mass-to-charge ratio. Cluster ions generated by laser ablation of a solid sample are selected according to their collision cross sections with helium buffer gas using a drift tube ion mobility spectrometer and their mass-to-charge ratio using a quadrupole mass filter. The mobility- and mass-selected target ions are introduced into a cryogenically cooled, three-dimensional quadrupole ion trap where they are thermalized through inelastic collisions with an inert buffer gas (He or He/N2 mixture). Spectra of the molecular ions are obtained by tagging them with inert atoms or molecules (Ne and N2), which are dislodged following resonant excitation of an electronic transition, or by photodissociating the cluster itself following absorption of one or more photons. An electronic spectrum is generated by monitoring the charged photofragment yield as a function of wavelength. The capacity of the instrument is illustrated with the resonance-enhanced photodissociation action spectra of carbon clusters (Cn +) and polyacetylene cations (HC2nH+) that have been selected according to the mass-to-charge ratio and collision cross section with He buffer gas and of mass-selected Au2 + and Au2Ag+ clusters.","PeriodicalId":54761,"journal":{"name":"Journal of the Optical Society of America and Review of Scientific Instruments","volume":"47 1","pages":"043201"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88532410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8