Transient collisional excitation X-ray lasers with 1-ps tabletop drivers

Dunn, James P.; Osterheld, A. L.; Li, Yuelin; Nilsen, Joseph; Shlyaptsev, Vyacheslav N.

doi:10.1109/2944.814982

Cited by 9 publications

(3 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…1 [13]. The lasing medium comprises an elongated laserproduced plasma in which Ne-like Titanium ions are excited by the plasma hot electrons through transient collisional excitation [14]. The transient population inversion obtained between the 3p − 3s (J = 0 -1) ionic transition corresponds to the lasing wavelength λ = 32.6 nm.…”

Section: Seeded Soft X-ray Laser Platformmentioning

confidence: 99%

Solid-target seeded soft X-ray laser for short pulses and optical vortex amplification

Guilbaud

Pandey

Baynard

et al. 2021

International Conference on X-Ray Lasers 2020

View full text Add to dashboard Cite

We report temporal coherence measurement of solid-target plasma-based soft X-ray laser (XRL) in amplified spontaneous emission (ASE) mode. By changing the XRL pumping angle, we generate lasing at two-times higher electron density than the routine condition. A relatively shorter coherence time at a higher pumping angle indicates a clear spectral signature of higher electron density in the gain region. We probe the amplification dynamics of XRL in routine, and high electron density conditions to confirm gain-duration reduction resulting from ionization gating in the latter case. We also present recent results on the seeding of a vortex beam carrying orbital angular momentum (OAM) in XRL plasma. A small part of the high topological charge extreme ultraviolet (EUV) vortex is injected in XRL. These preliminary results suggest that the vortex seed indeed can be efficiently amplified. In the end, we propose a pathway towards the seeding of the complete vortex beam and wavefront characterization of the amplified beam.

show abstract

Section: Seeded Soft X-ray Laser Platformmentioning

confidence: 99%

Solid-target seeded soft X-ray laser for short pulses and optical vortex amplification

Guilbaud

Pandey

Baynard

et al. 2021

International Conference on X-Ray Lasers 2020

View full text Add to dashboard Cite

show abstract

“…Physikalische Blätter 56 (2000) Nr. 6 48 Panorama Flussdichte erforderlich, um eine Besetzungsinversion zu erreichen. Nach [17] gilt für einen K a -Innerschalen-XRL und eine angenommene Pulsdauer von t pump = 20 fs folgende Skalierung für die keV-Röntgenimpulse: E pump (J) = (4,5/(l x (nm)) 2…”

unclassified

Laser: Röntgenlaser auf dem Wege zu Tabletop‐Systemen: Dank neuer Pumpverfahren passen Röntgenlaser inzwischen in ein kleines Labor

Nickles¹,

Janulewicz²,

Sandner³

2000

Phys. Bl.

View full text Add to dashboard Cite

Seit der Demonstration der ersten Röntgenlaser im Jahre 1985, die damals nur mittels großer und hochenergetischer Laser für die Fusionsforschung möglich war, sucht man nach neuen effizienten Pumpmethoden. In der letzten Dekade sind viele wichtige Experimente durchgeführt und enorme Fortschritte in Richtung kompakter, so genannter Tabletop‐Röntgenlaser mit einer hohen Brillanz erzielt worden, sodass man über konkrete Anwendungen nachdenken kann.

show abstract

“…A further difficulty for single-shot normal incidence pumping is related to the plasma lifetime. In fact, a longer plasma column demands increasingly more pump energy, such that the plasma remains in a hot and dense quasi-steady state (know as QSS) for the entire ASE propagation [2].…”

Section: Introductionmentioning

confidence: 99%

Pulse-front tilt for short-wavelength lasing by means of traveling-wave plasma-excitation

Bleiner

Feurer

2012

Appl. Opt.

View full text Add to dashboard Cite

Generation of coherent short-wavelength radiation across a plasma column is dramatically improved under traveling-wave excitation (TWE). The latter is optimized when its propagation is close to the speed of light, which implies small-angle target-irradiation. Yet, short-wavelength lasing needs large irradiation angles in order to increase the optical penetration of the pump into the plasma core. Pulse-front back-tilt is considered to overcome such trade-off. In fact, the TWE speed depends on the pulse-front slope (envelope of amplitude), whereas the optical penetration depth depends on the wave-front slope (envelope of phase). Pulse-front tilt by means of compressor misalignment was found effective only if coupled with a high-magnification front-end imaging/focusing component. It is concluded that speed matching should be accomplished with minimal compressor misalignment and maximal imaging magnification.

show abstract

Transient collisional excitation X-ray lasers with 1-ps tabletop drivers

Cited by 9 publications

References 15 publications

Solid-target seeded soft X-ray laser for short pulses and optical vortex amplification

Solid-target seeded soft X-ray laser for short pulses and optical vortex amplification

Laser: Röntgenlaser auf dem Wege zu Tabletop‐Systemen: Dank neuer Pumpverfahren passen Röntgenlaser inzwischen in ein kleines Labor

Pulse-front tilt for short-wavelength lasing by means of traveling-wave plasma-excitation

Contact Info

Product

Resources

About