典型文献
Photon energy transfer on titanium targets for laser thrusters
文献摘要：
Using two infrared pulsed lasers systems,a picosecond solid-state Nd:YAG laser with tuneable repetition rate(400 kHz-1 MHz)working in the burst mode of a multi-pulse train and a femtosecond Ti:sapphire laser amplifier with tuneable pulse duration in the range of tens of femtoseconds up to tens of picoseconds,working in single-shot mode(TEWALASS facility from CETAL-NILPRP),we have investigated the optimal laser parameters for kinetic energy transfer to a titanium target for laser-thrust applications.In the single-pulse regime,we controlled the power density by changing both the duration and pulse energy.In the multi-pulse regime,the train's number of pulses(burst length)and the pulse energy variation were investigated.Heat propagation and photon reflection-based models were used to simulate the obtained experimental results.In the single-pulse regime,optimal kinetic energy transfer was obtained for power densities of about 500 times the ablation threshold corresponding to the specific laser pulse duration.In multi-pulse regimes,the optimal number of pulses per train increases with the train frequency and decreases with the pulse power density.An ideal energy transfer efficiency resulting from our experiments and simulations is close to about 0.0015％.
文献关键词：
中图分类号：
作者姓名：
A.Marcu;M.Stafe;M.Barbuta;R.Ungureanu;M.Serbanescu;B.Calin;N.Puscas
作者机构：
Center for Advanced Laser Technologies(CETAL),National Institute for Laser,Plasma and Radiation Physics(INFLPR),Magurele 077125,Romania;Department of Physics,University Politehnica of Bucharest,Bucharest 060042,Romania
文献出处：
引用格式：
[1]A.Marcu;M.Stafe;M.Barbuta;R.Ungureanu;M.Serbanescu;B.Calin;N.Puscas-.Photon energy transfer on titanium targets for laser thrusters)[J].高功率激光科学与工程（英文版）,2022(05):1-13
A类：
TEWALASS,CETAL,NILPRP
B类：
Photon,energy,transfer,titanium,targets,thrusters,Using,two,infrared,pulsed,lasers,systems,solid,state,Nd,YAG,tuneable,repetition,rate,kHz,MHz,working,burst,multi,train,Ti,sapphire,amplifier,duration,range,tens,femtoseconds,up,picoseconds,single,shot,facility,from,have,investigated,optimal,parameters,kinetic,applications,In,controlled,power,density,by,changing,both,number,pulses,length,variation,were,Heat,propagation,photon,reflection,models,used,simulate,obtained,experimental,results,was,densities,about,times,ablation,threshold,corresponding,specific,regimes,increases,frequency,decreases,An,ideal,efficiency,resulting,our,experiments,simulations,is,close
AB值：
0.487799
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