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Soft-x-ray lasing at 32.6 nm in Ne-like Ti ions driven by 40 J of energy from two 650-ps laser pulses

Jie ZhangInstitute of Nuclear PhysicsS. T. ChunyuInstitute of Nuclear Physics and Chemistry, P.O. Box 525(84), Chengdu 610003, ChinaYang YouDepartment of Physics, Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, United KingdomQ. R. ZhangLawrence Livermore National Laboratory, Livermore, California 94550Sen YangInstitute of Nuclear PhysicsWenjing HuangDepartment of Physics, Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, United KingdomDifu WuDepartment of Physics, Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, United KingdomX. Q. ZhuangInstitute of Nuclear Physics and Chemistry, P.O. Box 525(84), Chengdu 610003, ChinaS. P. LiuInstitute of Nuclear Physics and Chemistry, P.O. Box 525(84), Chengdu 610003, ChinaYi CaiInstitute of Nuclear Physics and Chemistry, P.O. Box 525(84), Chengdu 610003, ChinaFanghui DuInstitute of Nuclear PhysicsXiaolong YuanInstitute of Nuclear PhysicsXiaofeng WeiLawrence Livermore National Laboratory, Livermore, California 94550Yongkang ZhaoInstitute of Nuclear Physics and Chemistry, P.O. Box 525(84), Chengdu 610003, ChinaHaojie PengInstitute of Nuclear Physics and Chemistry, P.O. Box 525(84), Chengdu 610003, ChinaJoseph NilsenInstitute of Nuclear Physics

Physical Review Ajournal1996en

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ABI

Annotatsiya

Using only 40 J of drive energy in a 650-ps main pulse we demonstrated lasing on the J=0\ensuremath{\rightarrow}1, 3p\ensuremath{\rightarrow}3s transition in neonlike titanium at 32.6 nm. This is an order of magnitude smaller drive energy than has been used previously to drive low-Z neonlike x-ray lasers. We present a series of experiments using titanium slab targets which study the threshold for lasing in neonlike titanium when the 1.8-cm-long targets are illuminated by a low-intensity prepulse 5 ns before the main optical drive pulse of the 1.05-\ensuremath{\mu}m Xingguang Nd-glass laser. For a 1% prepulse, the energy threshold is measured to be 40 J, which contrasts with 110 J for a 9% prepulse. In both cases, the 32.6-nm Ti lasing line peaks 5 mrad off-axis with divergences of 4 and 5 mrad for the 1% and 9% prepulse cases, respectively. \textcopyright{} 1996 The American Physical Society.

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Laser-Matter Interactions and Applications Cold Atom Physics and Bose-Einstein Condensates Atomic and Molecular Physics

Identifikatorlar

DOI: 10.1103/physreva.53.3640

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