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Development of new diagnostics based on LiF detector for pump-probe experiments

Matter and Radiation at Extremes 2018年第4期3卷 197-206页

作者： T.Pikuz A.Faenov NOzaki T.Matsuoka B.Albertazzi N.J.Hartley K.Miyanishi K.Katagiri S.Matsuyama K.Yamauchi H.Habara Y.Inubushi T.Togashi H.Yumoto H.Ohashi Y.Tange T.Yabuuchi M.Yabashi A.N.Grum-Grzhimailo A.Casner I.Skobelev S.Makarov S.Pikuz G.Rigon M.Koenig K.A.Tanaka T.Ishikawa R.Kodama Graduate School of Engineering Osaka UniversitySuitaOsaka 565-0871Japan Joint Institute for High Temperatures Russian Academy of SciencesMoscow 125412Russia Open and Transdisciplinary Research Initiatives Osaka UniversitySuitaOsaka 565-0871Japan Photon Pioneers center Osaka UniversitySuitaOsaka 565-0871Japan LULI e CNRS Ecole PolytechniqueCEA:Universite Paris-SaclayUPMC Univ Paris 06:Sorbonne Universites-F-91128 Palaiseau cedexFrance Helmholtz-Zentrum Dresden-Rossendorf Dresden 01328Germany Japan Synchrotron Radiation Research Institute Sayo-choSayo-gunHyogo 679-5198Japan RIKEN Spring-8 center Sayo-choSayo-gunHyogo 679-5148Japan Skobeltsyn Institute of Nuclear physics Lomonosov Moscow State UniversityMoscow 119991Russia Universite de Bordeaux-CNRS-CEA CELIA(Center Lasers Intenses et Applications)UMR 5107F-33405 TalenceFrance National Research Nuclear University MEPhI Moscow 115409Russia ELI-NP/IFN-HH Maqurele-Bucharest 077125 Romania ILE Osaka UniversitySuitaOsaka 565-0871Japan

We present new diagnostics for use in optical laser pump-X-ray Free Electron laser(XFEL)probe experiments to monitor dimensions,intensity profile and focusability of the XFEL beam and to control initial quality and homogeneity of targets to be driven by optical laser *** developing X-ray imaging,based on the use of an LiF crystal detector,we were able to measure the distribution of energy inside a hard X-ray beam with unprecedented high spatial resolution(~1 mm)and across a field of view larger than some *** diagnostic can be used in situ,provides a very high dynamic range,has an extremely limited cost,and is relatively easy to be implemented in pump-probe *** proposed methods were successfully applied in pump-probe experiments at the SPring-8 Angstrom Compact free electron laser(SACLA)XFEL facility and its potential was demonstrated for current and future High Energy Density Science experiments.

关键词： XFEL Shock waves Pump-probe experiments High energy density science X-ray spectroscopy X-ray imaging

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Microstructure and mechanical properties of Ti−Nb−Fe−Zr alloys with high strength and low elastic modulus

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Transactions of Nonferrous Metals Society of China 2022年第2期32卷 503-512页

作者： Qiang LI Qi HUANG Jun-jie LI Qian-feng HE Masaaki NAKAI Ke ZHANG Mitsuo NIINOMI Kenta YAMANAKA Akihiko CHIBA Takayoshi NAKANO School of Mechanical Engineering University of Shanghai for Science and TechnologyShanghai 200093China CAS Key Laboratory of Functional Materials and Devices for Special Environments Xinjiang Technical Institute of Physics&ChemistryCASUrumqi 830011China Division of Mechanical Engineering Faculty of Science and EngineeringKindai University3-4-1 KowakaeHigashiosakaOsaka 577-8502Japan School of Materials Science and Engineering University of Shanghai for Science and TechnologyShanghai 200093China Institute for Materials Research Tohoku University2-1-1 KatahiraAoba-kuSendai 980-8577Japan Division of Materials and Manufacturing Science Graduate School of EngineeringOsaka University2-1 Yamada-OkaSuitaOsaka 565-0871Japan Department of Materials Science and Engineering Graduate School of Science and TechnologyMeijo University1-501 ShiogamaguchiTempaku-kuNagoya 468-8502Japan

Zr was added to Ti−Nb−Fe alloys to develop low elastic modulus and high strengthβ-Ti alloys for biomedical *** of Ti−12Nb−2Fe−(2,4,6,8,10)Zr(at.%)were prepared by arc melting and then subjected to homogenization,cold rolling,and solution *** phases and microstructures of the alloys were analyzed by optical microscopy,X-ray diffraction,and transmission electron *** mechanical properties were measured by tensile *** results indicate that Zr and Fe cause a remarkable solid-solution strengthening effect on the alloys;thus,all the alloys show yield and ultimate tensile strengths higher than 510 MPa and 730 MPa,*** plays a weak role in the deformation ***,twinning occurs in all the deformed alloys and is beneficial to both strength and ***−12Nb−2Fe−(8,10)Zr alloys with metastableβphases show low elastic modulus,high tensile strength,and good plasticity and are suitable candidate materials for biomedical implants.

关键词： biomedical Ti alloy mechanical properties solid-solution strengthening work hardening twinninginduced plasticity

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3D printed fiber-optic nanomechanical bioprobe

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international Journal of Extreme Manufacturing 2023年第1期5卷 222-234页

作者： Mengqiang Zou Changrui Liao Yanping Chen Lei Xu Shuo Tang Gaixia Xu Ke Ma Jiangtao Zhou Zhihao Cai Bozhe Li Cong Zhao Zhourui Xu Yuanyuan Shen Shen Liu Ying Wang Zongsong Gan Hao Wang Xuming Zhang Sandor Kasas Yiping Wang Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060People’s Republic of China School of Electronic and Communication Engineering Shenzhen PolytechnicShenzhen 518000People’s Republic of China Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging School of Biomedical EngineeringHealth Science CenterShenzhen UniversityShenzhen 518055People’s Republic of China Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering College of Mechatronics and Control EngineeringShenzhen UniversityShenzhen 518060People’s Republic of China Laboratory of Food and Soft Materials Department of Health Sciences and TechnologyETH Zurich8092 ZurichSwitzerland Wuhan National Laboratory for Optoelectronics(WNLO) Huazhong University of Science and Technology(HUST)Wuhan 430074People’s Republic of China Department of Applied physics The HongKong Polytechnic UniversityHong KongPeople’s Republic of China Laboratory of Biological Electron Microscopy Ecole Polytechnique Fédérale de Lausanne1015 LausanneSwitzerland UnitéFacultaire d’Anatomie et de Morphologie(UFAM) CUMRLUniversity of Lausanne1005 LausanneSwitzerland

Ultrasensitive nanomechanical instruments,*** force microscopy(AFM),can be used to perform delicate biomechanical measurements and reveal the complex mechanical environment of biological ***,these instruments are limited because of their size and complex feedback *** this study,we demonstrate a miniature fiber optical nanomechanical probe(FONP)that can be used to detect the mechanical properties of single cells and in vivo tissue measurements.A FONP that can operate in air and in liquids was developed by programming a microcantilever probe on the end face of a single-mode fiber using femtosecond laser two-photon polymerization *** realize stiffness matching of the FONP and sample,a strategy of customizing the microcantilever’s spring constant according to the sample was proposed based on structure-correlated *** a proof-of concept,three FONPs with spring constants varying from 0.421 N m^(−1)to 52.6 N m^(−1)by more than two orders of magnitude were *** highest microforce sensitivity was 54.5 nmμN^(−1)and the detection limit was 2.1 *** Young’s modulus of heterogeneous soft materials,such as polydimethylsiloxane,muscle tissue of living mice,onion cells,and MCF-7 cells,were successfully measured,which validating the broad applicability of this *** strategy provides a universal protocol for directly programming fiber-optic ***,this method has no special requirements for the size and shape of living biological samples,which is infeasible when using commercial *** has made substantial progress in realizing basic biological discoveries,which may create new biomedical applications that cannot be realized by current AFMs.

关键词： two-photon polymerization nanolithography optical fiber sensor nanomechanical probe stiffness tunable microcantilever biosensor

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Multi-layered tissue head phantoms for noninvasive optical diagnostics

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Journal of Innovative Optical Health Sciences 2015年第3期8卷 36-45页

作者： M.S.Wróbel A.P.Popov A.V.Bykov M.Kinnunen M.Jędrzejewska-Szczerska V.V.Tuchin Department of Metrology and Optoelectronics Gdansk University of Technology Gabriela Narutowicza Street 11/1280-233 Gdansk Poland Optoelectronics and Measurement Techniques Laboratory faculty of Information Technology and Electrical Engineering University of Oulu P.O.Box 4500 FI-90014 OuluFinland Research-Educational Institute of Optics and Biophotonics Saratov State University Saratov 410012Russia Institute of Precise Mechanics and Control Russian Academy of Sciences Saratov 410028Russia

Extensive research in the area of optical sensing for medical diagnostics requires development of tissue phantoms with opt ical properties similar to those of living human *** and improvement of in vivo optical measurement systems requires the 1use of stable tissue phantoms with known characteristics,which are mainly used for calibration of such systems and testing their performance over *** and mechanical properties of phantoms depend on their ***,they must accurately simulate specific tssues they are supposed to *** tsues and organs including head possess a multi-layered structure,with specifie optical properties of each ***,such a structure is not always addressed in the present-day *** this paper,we focus on the development of a plain-parallel multi-layered phantom with optical properties(reduced scattering oofficientμ'and absorption cofficientμa)corresponding to the human head layers,such as skin,skul,and gray and white matter of the brain *** phantom is intended for use in noninvasive diffuse near-infrared spectroscopy(NIRS)of humnan *** parameters of the fabricated phantoms are reconstructed using spectrophotometry and inverse adding-doubling calculation *** results show that polyinyl chloride plastisol(PVCP)and zinc oxide(ZnO)nanoparticles are suitable materials for fabrication of tissue mimicking phantoms with controlled scattering *** matching was found between optical properties of phantoms and the corresponding values found in the literature.

关键词： Tissue-mimicking phantoms optical properties near-infrared spectroscopy head model

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Turbulence-induced beam wandering during femtosecond laser filamentation

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Chinese Optics Letters 2015年第7期13卷 27-31页

作者：曾涛高慧孙晓东刘伟伟 Key Laboratory of Optical Information Science and Technology Institute of Modern Optics Nankai UniversityMinistry of Education School of Science Tianjin Polytechnic University School of Electronics Information Engineering Tianjin Polytechnic University Cooperative Innovation center of Terahertz Science University of Electronic Science and Technology

The influence of air turbulence on the transverse wandering of a single femtosecond laser filament is studied by numerical simulation. The results show that the average transverse displacement of the single filament （StI is proportional to the square root of turbulent structure constant and the relations between （St} and the propa- gation distance can be fit by a power function. In addition, by using an axicon as a focusing optics, the wandering of a single filament is suggested to be stronger than the free-propagation case.

关键词： laser beams Turbulence

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UV-Polarizing Linear Polyyne Molecules Aligned in PVA

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Chinese Journal of Chemical physics 2019年第2期32卷 175-181,I0002页

作者： R. Sata H. Suzuki N. Ueno Y. Morisawa M. Hatanaka T. Wakabayashi Department of Chemistry Kindai University Higashi-Osaka 577-8502 Japan Institute for Research Initiatives Graduate School of Science and Technology and Data Science Center Nara Institute of Science and Technology (NAIST) Ikoma 630-0192 Japan PRESTO Japan Science and Technology Agency (JST) Kawaguchi 332-0012 Japan

Electronic absorption bands of conjugated linear carbon chain molecules, namely polyynes H(C≡C)nH (n=5-7), are exploited to devise light-polarizing films applicable to the UV. laser ablated polyynes are separated in size and dispersed in a film of polyvinyl alcohol (PVA), which is stretched to align the trapped linear polyyne molecules inside. As a nature of the structural anisotropy, transition dipole of the UV absorption for polyyne molecules is in parallel with the molecular axis and the absorption occurs only for the electromagnetic wave having the amplitude of its electric vector along the molecular axis. Aligned and fixed orientationally in the solid PVA film, polyyne molecules act as selective absorbers of one of the polarization components of incident light at particular wavelength. Using a light source of linearly polarized UV light, whose direction of polarization is rotatable, angular dependence of the absorption intensity is investigated for the stretched PVA film containing aligned polyyne molecules and analyzed in terms of an order parameter in the theory of linear dichroism.

关键词： Polyyne UV absorption Polyvinyl alcohol Linear dichroism Linearly polarized light Polarizer

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Quantitative evaluation of enhanced laser tattoo removal by skin optical clearing

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Journal of Innovative Optical Health Sciences 2015年第3期8卷 56-63页

作者： Caihua Liu Rui Shi Min Chen Dan Zhu Britton Chance center for Biomedical Photonics Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan 430074 P.R.China MoE Key Laboratory of Biomedical Photonics of Ministry of Education Department of Biomedical Engineering Huazhong University of Science and Technology Wuhan 430074 P.R.China Department of Medicine Affiliated Hospital Huazhong University of Science and Technology Wuhan 430074P.R.China

lasers have been widely used for tattoo removal,but the limited light penetration depth calused by high skin scattering property restricts the therapeutic outcome of deep *** optical clearing method,by introducing optical clearing agent(OCA)into skin,has shown some im-provement in the effect of laser tattoo *** this study,the enhanced laser tattoo removal has been quantitatively *** was applied to the skin of tattoo animal model and Q switched Nd:YAG laser(1064 nm)irradiation was used to remove the *** skin evaluation instrument(Mexameter probe,MPA580)was applied to measure the content of tattoo pigment before and after laser treatment,and then the clearance rate of pigment was ***,Monte Carlo(MC)method was utilized to simulate the efecet of skin optical clearing on light transmission in tattoo skin *** comparing the pigment change of tattoo areas respectively treated with OCA plus laser and single laser,it was found that pigment clearance of the former tattoo area was increased by ***,the MC simulation verifed that the reduced light scattering in skin could increase the effective dose of lumninous fux reaching to the deep tattoo *** can be concluded from both experiment and theoretical simulations that skin optical clearing technique could improve the outcome of laser tattoo re moval,which should be beneficial for clinical laser tattoo removal and other laser pigment elimination.

关键词： Skin optical clearing laser tattoo removal Q-switched Nd:YAG laser Monte Carlo simulation

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Shipborne oceanic high-spectral-resolution lidar for accurate estimation of seawater depth-resolved optical properties

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Light(Science & Applications) 2022年第10期11卷 2345-2357页

作者： Yudi Zhou Yang Chen Hongkai Zhao Cedric Jamet Davide Dionisi Malik Chami Paolo Di Grolamo James H.Churnside Aleksey Malinka Huade Zhao Dajun Qiu Tingwei Cui Qun Liu Yatong Chen Sornsiri Phongphattarawat Nanchao Wang Sijie Chen Peng Chen Ziwei Yao Chengfeng Le Yuting Tao Peituo Xu Xiaobin Wang Binyu Wang Feitong Chen Chuang Ye Kai Zhang Chong Liu Dong Liu Ningbo Research Institute State Key Laboratory of Modern Optical InstrumentationCollege of Optical Science and EngineeringZhejiang UniversityHangzhou 310027China Intelligent Optics&Photonics Research center Jiaxing Key Laboratory of Photonic Sensing&Intelligent ImagingJiaxing Research InstituteZhejiang UniversityJiaxing 314000China Univ.Littoral C?te d'Opale CNRSUniv.LilleIRDUMR 8187-LOG-Laboratoire d'Océanologie et de GéosciencesF-62930 WimereuxFrance Institute of Marine Sciences(ISMAR) Italian National Research Council(CNR)Rome-Tor Vergata 00133Italy Sorbonne Université CNRSLATMOS96 Boulevard de l'Observatoire06304 Nice CedexFrance Scuola di Ingegneria Universitàdella BasilicataViale Ateneo Lucano 101-85100 PotenzaItaly Cooperative Institute for Research in Environmental Sciences University of Colorado Boulder and NOAA Chemical Sciences Laboratory325 BroadwayBoulderCO 80305USA Institute of physics National Academy of Sciences of BelarusPr.Nezavisimosti 68-2Minsk 220072Belarus Key Laboratory for Ecological Environment in Coastal Areas(State Oceanic Administration) National Marine Environmental Monitoring CenterDalian 116023China CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China School of Atmospheric Sciences and Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies Sun Yat-sen UniversityZhuhai 519000China faculty of Technology and Environment Prince of Songkla UniversityPhuket 83120Thailand Second Institute of Oceanography Ministry of Natural ResourcesHangzhou 310012China Ocean College Zhejiang UniversityZhoushan 316021China Donghai Laboratory Zhoushan 316021China

Lidar techniques present a distinctive ability to resolve vertical structure of optical properties within the upper water column at both day-and ***,accuracy challenges remain for existing lidar instruments due to the ill-posed nature of elastic backscatter lidar retrievals and multiple *** we demonstrate the high performance of,to the best of our knowledge,the first shipborne oceanic high-spectral-resolution lidar(HSRL)and illustrate a multiple scattering correction algorithm to rigorously address the above challenges in estimating the depth-resolved diffuse attenuation coefficient Kd and the particulate backscattering coefficient bbp at 532 *** data were collected during day-and night-time within the coastal areas of East China Sea and South China Sea,which are connected by the Taiwan *** include vertical profiles from open ocean waters to moderate turbid waters and first lidar continuous observation of diel vertical distribution of thin layers at a fixed *** root-mean-square relative differences between the HSRL and coincident in situ measurements are 5.6%and 9.1%for Kd and bbp,respectively,corresponding to an improvement of 2.7-13.5 and 4.9-44.1 times,respectively,with respect to elastic backscatter lidar *** oceanic HSRLs with high performance are expected to be of paramount importance for the construction of 3D map of ocean ecosystem.

关键词： lidar oceanic ocean

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Reactive SPS of Al_(2)O_(3)–RE:YAG(RE=Ce;Ce+Gd)composite ceramic phosphors

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Journal of Advanced Ceramics 2023年第5期12卷 1015-1032页

作者： Denis Yu.Kosyanov Anastasia A.Vornovskikh Oleg O.Shichalin Evgeniy K.Papynov Anton A.Belov Aleksandra A.Kosianova Aleksandr N.Fedorets Andrei A.Leonov Alexey P.Zavjalov Sergey A.Tikhonov Yanbin Wang Ziqiu Cheng Xin Liu Jiang Li Far Eastern Federal University Vladivostok 690922Russia Institute of Automation and Control Processes Far Eastern Branch of the Russian Academy of SciencesVladivostok 690041Russia Laboratory of Methods of Synchrotron Radiation Institute of Solid State Chemistry and MechanochemistrySiberian Branch of the Russian Academy of SciencesNovosibirsk 630128Russia Kamchatka Branch of Geophysical Survey of the Russian Academy of Sciences Petropavlovsk-Kamchatsky 683006Russia Key Laboratory of Transparent Opto-functional Inorganic Materials Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 201899China center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Ultrafine-grained Al_(2)O_(3)–rare earth:yttrium aluminium garnet(Al_(2)O_(3)–RE:YAG)(RE=Ce;Ce+Gd)composite ceramics were obtained for the first time by reactive spark plasma sintering(SPS)using commercially available initial oxide *** effect of key sintering parameters(temperature,dwell time,and external pressure(P_(load)))on densification peculiarities,structural-phase states,and luminescent properties of composites was studied *** in phase formation and densification between Ce-doped and Ce,Gd-codoped systems were *** of reactive SPS,at which there is partial melting with the formation of near-eutectic zones of the Al_(2)O_(3)–YAG system/coexistence of several variations of the YAG-type phase,were *** corundum–garnet biphasic ceramics with an optimal balance between microstructural and luminescence performance were synthesized at 1425℃/30 min/30–60 *** external quantum efficiency(EQE)of the phosphor converters reached 80.7%and 72%with close lifetime of~63.8 ns,similar to those of commercial Ce:YAG materials,which is promising for further applications in the field of high-power white light-emitting diodes(WLEDs)and laser diodes(LDs).

关键词： alumina–Ce^(3+)-doped yttrium aluminium garnet(Al_(2)O_(3)–Ce:YAG)ceramic phosphors reactive spark plasma sintering(SPS) structural-phase states microstructure luminescence performance

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First radiative shock experiments on the SG-II laser

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High Power laser Science and Engineering 2021年第2期9卷 193-200页

作者： Francisco Suzuki-Vidal Thomas Clayson Chantal Stehlé Uddhab Chaulagain Jack W.D.Halliday Mingying Sun Lei Ren Ning Kang Huiya Liu Baoqiang Zhu Jianqiang Zhu Carolina De Almeida Rossi Teodora Mihailescu Pedro Velarde Manuel Cotelo John M.Foster Colin N.Danson Christopher Spindloe Jeremy P.Chittenden Carolyn Kuranz Blackett Laboratory Imperial College LondonLondonUK First Light Fusion Ltd YarntonUK LERMA Sorbonne-UniversitéObservatoire de ParisCNRSFrance ELI Beamlines center Institute of PhysicsCzech Academy of SciencesDolni BrezanyCzech Republic Shanghai Institute of Optics and Fine Mechanics Chinese Academy of SciencesShanghaiChina Instituto de Fusión Nuclear Guillermo Velarde Universidad Politécnica de MadridMadridSpain AWE plc. AldermastonReadingUK Science and Technology Facilities Council Rutherford Appleton LaboratoryHarwell CampusChiltonDidcotUK University of Michigan Ann ArborMIUSA Current affiliation:Magdrive Ltd HarwellUK

We report on the design and first results from experiments looking at the formation of radiative shocks on the ShenguangII(SG-II)laser at the Shanghai Institute of Optics and Fine Mechanics in ***-heating of a two-layer CH/CH–Br foil drives a∼40 km/s shock inside a gas cell filled with argon at an initial pressure of 1 *** use of gas-cell targets with large(several millimetres)lateral and axial extent allows the shock to propagate freely without any wall interactions,and permits a large field of view to image single and colliding counter-propagating shocks with time-resolved,pointprojection X-ray backlighting(∼20µm source size,4.3 keV photon energy).Single shocks were imaged up to 100 ns after the onset of the laser drive,allowing to probe the growth of spatial nonuniformities in the shock *** results are compared with experiments looking at counter-propagating shocks,showing a symmetric drive that leads to a collision and stagnation from∼40 ns *** present a preliminary comparison with numerical simulations with the radiation hydrodynamics code ARWEN,which provides expected plasma parameters for the design of future experiments in this facility.

关键词： high energy density physics laboratory astrophysics plasma physics high-power laser laser-driven shocks experiments X-ray backlighting X-ray radiography

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