CO<sub>2</sub> laser ion source: Comparison between mode-locked 
and free-running laser beams

Lisi, N.; Meyer, C.; Scrivens, R.

doi:10.1017/s0263034601194127

Cited by 2 publications

(3 citation statements)

References 5 publications

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“…The arrangement of the apparatus with lenses is described in more detail e.g. in [41,42,65], with parabolic mirrors in [2,14,15,43,44], with an ellipsoidal mirror in [45], and with an off-axis mirror in [17,18]. A parabolic mirror with a through hole at its axis makes it possible to measure ions emitted perpendicular to the target surface.…”

Section: Experimental Apparatus and Ion Diagnosticsmentioning

confidence: 99%

“…A parabolic mirror with a through hole at its axis makes it possible to measure ions emitted perpendicular to the target surface. An extraction and acceleration system can then transform the emitted ions into an ion beam, if desired [14][15][16][17][18].…”

Section: Experimental Apparatus and Ion Diagnosticsmentioning

confidence: 99%

“…LIS are under development for, e.g. the Large Hadron Collider at CERN [13][14][15][16][17][18] and the Terra Watt Accumulator at ITEP (Moscow) [17,19], using CO 2 and Nd : glass lasers, respectively. However, LIS can also be utilized advantageously for various technological applications, such as surface modification (ion implantation, with, but also without electrostatic acceleration [20][21][22][23][24]), very large scale integrated circuit fabrication, laser mass spectrometry, etc.…”

Section: Introductionmentioning

confidence: 99%

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Generation of multiply charged ions at low and high laser-power densities

Láska

Jungwirth

Králíková

et al. 2003

Plasma Phys. Control. Fusion

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The PERUN and PALS iodine laser systems and a Nd : YAG laser have been used for studies of ions emitted from various single element laser plasmas, at both low (I L ∼ 10 9 W cm −2 ) and high (I L ∼ 10 16 W cm −2 ) laser intensities. Sufficiently high current densities of low-charge ions, with energies only of hundreds of electronvolt, were produced for starting tests of a considered new hybrid ion source, based on coupling of laser ion source to electron cyclotron resonance plasma. Highly charged ions with charge states about 50+ and with energies even higher than 20 MeV were generated at the highest laser intensities (I L > 2×10 14 W cm −2 ). Seven ion sub-groups at least (faster and slower) were recorded and distinguished at these conditions. The existence of an 'optimum focus position' in front of the target surface is consistent with the idea that laser interaction with a prepulse-produced plasma improves the conditions for self-focusing. The experimental arrangements and ion diagnostics used for the various laser ion generation experiments are briefly reviewed, as well as our both older and more recent results on the characteristics of the ions, produced at the various laser irradiances, are presented. The results of laser ion implantation experiments using these ions directly (without additional electrostatic acceleration) are also mentioned.

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Section: Experimental Apparatus and Ion Diagnosticsmentioning

confidence: 99%

Section: Experimental Apparatus and Ion Diagnosticsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Generation of multiply charged ions at low and high laser-power densities

Láska

Jungwirth

Králíková

et al. 2003

Plasma Phys. Control. Fusion

View full text Add to dashboard Cite

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Review of laser ion sources developments in Prague and production of q over 50+ ions at Prague Asterix Laser System (invited)

Láska

Jungwirth

Králíková

et al. 2004

Review of Scientific Instruments

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The high-power iodine laser systems PERUN and Prague Asterix Laser System, with a maximum attainable laser intensity IL of up to about 6×1016 W/cm2, were used to generate highly charged ions of various elements (Al,Co,Ni,Cu,Ag,Sn,Ta,W,Pt,Au,Pb,Bi). The properties of ions were investigated mainly on the basis of time-of-flight method using ion collectors, cylindrical electrostatic ion energy analyzer, Thomson parabola spectrometer, and track detectors. Simultaneous x-ray and interferometric measurements were also implemented. Maximum ion charge states of heavy ions above z=50+ were recorded and the maximum energy of emitted ions exceeded Ei=22 MeV. Using laser intensities of about 1×1016 W/cm2 can produce such ions. Due to the convenient pulse length of the iodine laser, part of the pulse may interact with the self-created expanding plasma. It was proved that in this case the conditions for an appearance of the relativistic self focusing may be fulfilled (position of minimum focus spot in front of the target surface and the threshold laser intensity about 3×1014 W/cm2) and the highest charge states above 50+ may be generated, too.

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CO₂ laser ion source: Comparison between mode-locked and free-running laser beams

Cited by 2 publications

References 5 publications

Generation of multiply charged ions at low and high laser-power densities

Generation of multiply charged ions at low and high laser-power densities

Review of laser ion sources developments in Prague and production of q over 50+ ions at Prague Asterix Laser System (invited)

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CO2 laser ion source: Comparison between mode-locked and free-running laser beams

Cited by 2 publications

References 5 publications

Generation of multiply charged ions at low and high laser-power densities

Generation of multiply charged ions at low and high laser-power densities

Review of laser ion sources developments in Prague and production of q over 50+ ions at Prague Asterix Laser System (invited)

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Product

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CO₂ laser ion source: Comparison between mode-locked and free-running laser beams