Collimated beam of MeV electrons accelerated by a terawatt laser

R. Wagner; S. Y. Chen; A. Maksimchuk; E. Dodd; J. K. Kim; D. Umstadter

Collimated beam of MeV electrons accelerated by a terawatt laser

R. Wagner, S. Y. Chen, A. Maksimchuk, E. Dodd, J. K. Kim, D. Umstadter

物理學系

研究成果: 會議貢獻類型 › 會議論文 › 同行評審

摘要

It is demonstrated that a laser wake field can produce a collimated beam of MeV electrons and that the laser may be guided by relativistic self-focusing and electron cavitation. The experiment is remarkably simple. A high-power laser is focused into a molecular beam produced by a gas jet. The laser used in the experiment has a pulse duration of τ = 400 fs, and an energy up to 10 J, corresponding to a peak power of 25 TW. When focused in vacuum with an f/5 off-axis parabolic mirror, the laser can reach an intensity of up to 10¹⁹ W/cm². To create the plasma, the gas from a pulsed valve is tunnel-ionized by the laser pulse itself, reaching a peak electron density on axis of 10¹⁹ cm^-3. The electron source size is estimated to be 10 μm and the electron pulse duration, a few picoseconds.

原文	???core.languages.en_GB???
頁面	70
頁數	1
出版狀態	已出版 - 1996
事件	Proceedings of the 1996 6th Quantum Electronics and Laser Science Conference, QELS - Anaheim, CA, USA 持續時間: 2 6月 1996 → 7 6月 1996

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???event.eventtypes.event.conference???	Proceedings of the 1996 6th Quantum Electronics and Laser Science Conference, QELS
城市	Anaheim, CA, USA
期間	2/06/96 → 7/06/96

引用此

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T1 - Collimated beam of MeV electrons accelerated by a terawatt laser

AU - Wagner, R.

AU - Chen, S. Y.

AU - Maksimchuk, A.

AU - Dodd, E.

AU - Kim, J. K.

AU - Umstadter, D.

PY - 1996

Y1 - 1996

N2 - It is demonstrated that a laser wake field can produce a collimated beam of MeV electrons and that the laser may be guided by relativistic self-focusing and electron cavitation. The experiment is remarkably simple. A high-power laser is focused into a molecular beam produced by a gas jet. The laser used in the experiment has a pulse duration of τ = 400 fs, and an energy up to 10 J, corresponding to a peak power of 25 TW. When focused in vacuum with an f/5 off-axis parabolic mirror, the laser can reach an intensity of up to 1019 W/cm2. To create the plasma, the gas from a pulsed valve is tunnel-ionized by the laser pulse itself, reaching a peak electron density on axis of 1019 cm-3. The electron source size is estimated to be 10 μm and the electron pulse duration, a few picoseconds.

AB - It is demonstrated that a laser wake field can produce a collimated beam of MeV electrons and that the laser may be guided by relativistic self-focusing and electron cavitation. The experiment is remarkably simple. A high-power laser is focused into a molecular beam produced by a gas jet. The laser used in the experiment has a pulse duration of τ = 400 fs, and an energy up to 10 J, corresponding to a peak power of 25 TW. When focused in vacuum with an f/5 off-axis parabolic mirror, the laser can reach an intensity of up to 1019 W/cm2. To create the plasma, the gas from a pulsed valve is tunnel-ionized by the laser pulse itself, reaching a peak electron density on axis of 1019 cm-3. The electron source size is estimated to be 10 μm and the electron pulse duration, a few picoseconds.

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M3 - 會議論文

AN - SCOPUS:0029716096

SP - 70

T2 - Proceedings of the 1996 6th Quantum Electronics and Laser Science Conference, QELS

Y2 - 2 June 1996 through 7 June 1996

ER -

Collimated beam of MeV electrons accelerated by a terawatt laser

摘要

???event.eventtypes.event.conference???

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