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laser-driven programmable non-contact transfer printing of objects onto arbitrary receivers via an active elastomeric microstructured stamp

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National Science Review 2020年第2期7卷 296-304页

作者： Hongyu Luo Chengjun Wang Changhong Linghu Kaixin Yu Chao Wang Jizhou Song Department of Engineering Mechanics Soft Matter Research Center and Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province Zhejiang University

Transfer printing, as an important assembly technique, has attracted much attention due to its valuable merits to develop novel forms of electronics such as stretchable inorganic electronics requiring the heterogeneous integration of inorganic materials with soft elastomers. Here, we report on a laser-driven programmable non-contact transfer printing technique via a simple yet robust design of active elastomeric microstructured stamp that features cavities filled with air and embedded under the contacting surface, a micro-patterned surface membrane that encapsulates the air cavities and a metal layer on the inner-cavity surfaces serving as the laser-absorbing layer. The micro-patterned surface membrane can be inflated dynamically to control the interfacial adhesion, which can be switched from strong state to weak state by more than three orders of magnitude by local laser heating of the air in the cavity with a temperature increase below 100℃. Theoretical and experimental studies reveal the fundamental aspects of the design and fabrication of the active elastomeric microstructured stamp and the operation of non-contact transfer printing. Demonstrations in the programmable transfer printing of micro-scale silicon platelets and micro-scale LED chips onto various challenging receivers illustrate the extraordinary capabilities for deterministic assembly that are difficult to address by existing printing schemes, thereby creating engineering opportunities in areas requiring the heterogeneous integration of diverse materials such as curvilinear electronics and Micro LED displays.

关键词： tunable adhesion transfer printing heterogeneous integration laser-driven

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Calibration of CR-39 solid-state track detectors for study of laser-driven nuclear reactions

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Nuclear Science and Techniques 2020年第4期31卷 118-122页

作者： Yang-Fan He Xiao-Feng Xi Shi-Lun Guo Bing Guo Chuang-Ye He Fu-Long Liu Di Wu Ji-Hong Wei Wan-Sha Yang Luo-Huan Wang Dong-Hai Zhang Meng-Lin Qiu Guang-Fu Wang Chao-Yang Li Xiao-Fei Lan School of Physics and Space Sciences China West Normal UniversityNanchong 637002China China Institute of Atomic Energy Beijing 102413China College of Nuclear Science and Technology Beijing Normal UniversityBeijing 100875China School of Physics and Information Engineering Shanxi Normal UniversityLinfen 041004China

It is of particular interest to investigate nuclear fusion reactions generated by high-intensity lasers in plasma environments that are similar to real astrophysical *** have experimentally investigated2H(d,p)3H,one of the most crucial reactions in big bang nucleosynthesis models,at the Shenguang-Ⅱlaser *** this work,we present a new calibration of CR-39 solidstate track detectors,which are widely employed as the main diagnostics in this type of fusion reaction *** measure the dependence of the track diameter on the proton *** is found that the track diameters of protons with different energies are likely to be *** propose that in this case,the energy of the reaction products can be obtained by considering both the diameters and gray levels of these *** present results would be very helpful for analyzing the2 H(d,p)3H reaction products recorded with the same batch of CR-39 solid-state track detectors.

关键词： Big bang nucleosynthesis laser-driven nuclear reactions CR-39 detectors Gray levels

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laser-driven Light Sources for Nanometrology Applications

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Journal of Microelectronic Manufacturing 2019年第1期2卷 27-31页

作者： Huiling Zhu Paul Blackborow Energetiq Technology Inc.7 Constitution WayWoburnMA 01801USA

laser-driven light sources(LDLS)have ultrahigh-brightness and broad wavelength *** are ideal radiation sources for optical metrology tools for advanced process control in semiconductor *** sources,with their advantages of 170 nm to 2100 nm wavelength range,have been widely adopted and are being used in volume manufacturing for spectroscopic ellipsometry(SE),spectroscopic scatterometry(SS),and white light interferometry(WLI)*** applications are used to measure critical dimensions(CD),overlay(OVL),and film thickness.

关键词： laser-driven brightness broadband deep-UV metrology LDLS

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Proton angular distribution research by a new angle-resolved proton energy spectrometer

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Science China(Physics,Mechanics & Astronomy) 2014年第5期57卷 844-848页

作者： SU LuNing ZHENG Yi LIU Meng HU ZhiDan WANG WeiMin YUAN XiaoHui XU MiaoHua SHENG ZhengMing SHEN ZhongWei FAN HaiTao LI YuTong MA JingLong LU Xin CHEN LiMing WANG ZhaoHua WEI ZhiYi ZHANG Jie Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of Sciences Key Laboratory for laser Plasmas (MoE) and Department of Physics Shanghai Jiao Tong University Department of Physics China University of Mining and Technology (Beijing)

The proton spectral and angular distributions simultaneously within the target normal direction and laser propagation direction by using an angle-resolved proton energy spectrometer are *** the protons generated in the interactions of 100 fs,800nm laser pulses with aluminum foil targets,the deviations of proton beam centers of different energies from the target normal direction towards the laser propagation direction are *** is probably because of the toroidal magnetic fields generated at the rear target surface,which deflect protons *** a result,protons in low energy range have large deviation angles,protons in middle energy range have the smallest deviation angles,while protons in high energy tail have large deviation angles.

关键词： laser-driven proton acceleration

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Theory of light sail acceleration by intense lasers:an overview

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High Power laser Science and Engineering 2014年第2期2卷 1-6页

作者： Andrea Macchi National Institute of Optics National Research Council (CNR/INO) Research Unit ‘Adriano Gozzini’Department of Physics ‘Enrico Fermi’ University of Pisa largo Bruno Pontecorvo 3 I-56127 Pisa Italy

A short overview of the theory of acceleration of thin foils driven by the radiation pressure of superintense lasers is presented. A simple criterion for radiation pressure dominance at intensities around 5×1020W cm-... 详细信息

关键词： light sail radiation pressure laser–plasma acceleration of electrons and ions laser-driven acceleration

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The influence of target material and thickness on proton energy and angular distribution

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Science China(Physics,Mechanics & Astronomy) 2013年第2期56卷 457-461页

作者： SU LuNing LIU BiCheng LIN XiaoXuan LIU Feng DU Fei LIU XiaoLong ZHENG Yi GE XuLei LI YuTong SHENG ZhengMing CHEN LiMing WANG WeiMin MA JingLong LU Xin WEI ZhiYi CHEN JiaEr ZHANG Jie Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of Sciences State Key Laboratory of Nuclear Physics and Technology Institute of Heavy Ion PhysicsPeking University Key Laboratory for laser Plasmas(Ministry of Education) and Department of Physics Shanghai Jiao Tong University

The paper has studied the influence of target material and thickness on energy and angular distributions of the protons generated by using an 800 rim, 60 fs, 0.24 J laser pulse to irradiate solid target foils. The results show that the initial density and thickness of the targets will affect the formation of the acceleration sheath fields in the target normal direction. For the same target thickness, using lower density target materials can obtain a higher proton maximum energy. However, lower density targets tend to be deformed due to the shock waves launched by the laser pulses, making the proton spatial distribution more divergent.

关键词： laser-driven proton acceleration

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Polarized proton beams from laser-induced plasmas

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High Power laser Science and Engineering 2019年第1期7卷 114-119页

作者： Anna Hützen Johannes Thomas Jürgen B?ker Ralf Engels Ralf Gebel Andreas Lehrach Alexander Pukhov T.Peter Rakitzis Dimitris Sofikitis Markus Büscher Peter Grünberg Institut (PGI-6) Forschungszentrum Jülich Institut für laser-und Plasmaphysik Heinrich-Heine-Universit?t Düsseldorf Institut für Theoretische Physik I Heinrich-Heine-Universit?t Düsseldorf Institut für Kernphysik (IKP-4) Forschungszentrum Jülich Institut für Kernphysik (IKP-2) Forschungszentrum Jülich JARA-FAME und III.Physikalisches Institut B RWTH Aachen Department of Physics University of Crete Institute of Electronic Structure and laser Foundation for Research and Technology-Hellas

We report on the concept of an innovative source to produce polarized proton/deuteron beams of a kinetic energy up to several GeV from a laser-driven plasma accelerator. Spin effects have been implemented into the particle-in-cell(PIC) simulation code VLPL(Virtual laser Plasma Lab) to make theoretical predictions about the behavior of proton spins in laser-induced plasmas. Simulations of spin-polarized targets show that the polarization is conserved during the acceleration process. For the experimental realization, a polarized HCl gas-jet target is under construction using the fundamental wavelength of a Nd:YAG laser system to align the HCl bonds and simultaneously circularly polarized light of the fifth harmonic to photo-dissociate, yielding nuclear polarized H atoms. Subsequently, their degree of polarization is measured with a Lamb-shift polarimeter. The final experiments, aiming at the first observation of a polarized particle beam from laser-generated plasmas, will be carried out at the 10 PW laser system SULF at SIOM, Shanghai.

关键词： laser-driven plasma accelerator particle-in-cell simulations polarized gas-jet target polarized proton beams

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Measurement of temperature changes during cavitation generated by an erbium, chromium: Yttrium, scandium, gallium garnet laser

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Open Journal of Stomatology 2012年第4期2卷 286-291页

作者： Harry Huiz Peeters Latief Mooduto Department of Endodontics School of Dentistry University of Airlangga Surabaya Indonesia laser Research Center Bandung Indonesia

Aim: The present study evaluated the magnitude of temperature changes in the tooth during cavitation produced by an Er,Cr:YSGG laser. Methods: The root canal of a single extracted maxillary canine was enlarged to a size 30/.02 file. Four thermocouples were attached to the tooth: one to the surface of the root and three inserted into the canal at 3, 9, and 15 mm from the apical foramen, respectively. The tooth was placed in a plastic container at room temperature around 25°C. The tooth was processed as follows. In the EDTA condition, the tooth was irrigated with 17% EDTA;in the NaOCl condition, the tooth was irrigated with 3% NaOCl;and to analyse the effect of different thicknesses of dentin, the tooth was irrigated with tap water. In all conditions, the irrigants were activated at 2 W for 120 seconds. Results: The mean temperature was 25.2°C to 27.1°C and the temperature ranged from 25.0°C to 29.6°C. The temperature elevation measured during cavitation generated by the laser didnot exceed 5°C. Conclusions: The magnitude of the temperature changes in the root canal and at the surface of the tooth did not exceed 5°C when laser-driven irrigation was used to produce cavitation in the root canal.

关键词： Cavitation Heat laser-driven Irrigation Temperature Changes

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Research Progress in laser Active Debris Removal of CAST

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Aerospace China 2018年第4期19卷 3-19页

作者： CHEN Chuan YANG Wulin GONG Zizheng LI Ming Beijing Institute of Spacecraft Environment Engineering Beijing 100094 National Key Laboratory of Science and Technology on Reliability and Environment Engineering Beijing 100094 China Academy of Space Technology Beijing 100094

Based on the introduction to theresearch status and trend of international space-based laser debris re-moval technology, the existing problems of space-based laser debris removal technology are systematically *** view of the existing problems, the work and research progress of the Beijing Institute of Spacecraft EnvironmentEngineering in this field are introduced from several aspects, such as dynamic behavior of laser-driven debris, orbittransfer model, ground simulation system, space-based removal system scheme and target selection strategy. The mainresearch methods include laser-driven micro-impulse measurement experiment, surface triangulation three-dimension-al reconstruction calculation method based on laser-material interaction theory, simulation calculation based on orbitaldynamics, etc. It also looks forward to the future research direction in the field of this technology.

关键词： debris active removal laser ablation drive dynamics behavior orbit transfer model of laser-driven de-bris simulation system target selection strategy

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