X-ray generation using ultrashort high-energy laser pulses is an attractive technique for industry, medicine, and material science. In particular, the generated X-rays can be applied in X-ray spectroscopy and diffraction measurements.

The use of femtosecond pulses enables the generation of X-rays with femtosecond temporal and angstrom-scale spatial resolution, allowing direct observation of atom-level structural changes in different samples. The properties of X-rays generated by femtosecond laser pulses are comparable to that of synchrotrons, but laser systems are significantly simpler and more compact than synchrotrons.

The brightness of generated X-rays scales linearly with the laser repetition rate. The brightness and conversion efficiency of X-rays using high-repetition-rate and high-average-power PHAROS femtosecond lasers are comparable to those achieved using multi-millijoule pulsed laser sources. This suggests that femtosecond laser systems such as PHAROS and CARBIDE are the solutions in the quest for tabletop X-ray sources.

  • Tunable pulse duration, 100 fs – 20 ps
  • Maximum pulse energy of up to 4 mJ
  • Down to < 100 fs right at the output
  • Pulse-on-demand and BiBurst for pulse control
  • Up to 5th harmonic or tunable extensions
  • CEP stabilization or repetition rate locking
  • Thermally-stabilized and sealed design
  • Tunable pulse duration, 190 fs – 20 ps
  • Maximum output of 120 W and 2 mJ
  • Single-shot – 2 MHz repetition rate
  • Pulse-on-demand and BiBurst for pulse control
  • Up to 5th harmonic or tunable extensions
  • Air-cooled model
  • Compact industrial-grade design

Compact high-flux X-ray source based on irradiation of solid targets by gigahertz and megahertz bursts of femtosecond laser pulses

L. Rimkus, I. Stasevičius, M. Barkauskas, L. Giniūnas, V. Barkauskas, S. Butkus, and M. Vengris, Optics Continuum 8 (1), 1819 (2022).

Taking a snapshot of the triplet excited state of an OLED organometallic luminophore using X-rays

G. Smolentsev, C. J. Milne, A. Guda, K. Haldrup, J. Szlachetko, N. Azzaroli, C. Cirelli, G. Knopp, R. Bohinc, S. Menzi et al., Nature Communications 1 (11) (2020).

X-ray pulse emission of alkali metal halide salts irradiated by femtosecond laser pulses

A. Koroliov, J. Reklaitis, K. Varsockaja, D. Germanas, A. Plukis, and V. Remeikis, Applied Physics B 9 (126) (2020).

Structural dynamics upon photoexcitation-induced charge transfer in a dicopper(i)–disulfide complex

M. Naumova, D. Khakhulin, M. Rebarz, M. Rohrmüller, B. Dicke, M. Biednov, A. Britz, S. Espinoza, B. Grimm‑Lebsanft, M. Kloz et al., Physical Chemistry Chemical Physics 9 (20), 6274-6286 (2018).

Generation of plasma X-ray sources via high repetition rate femtosecond laser pulses

A. Baguckis, A. Plukis, J. Reklaitis, V. Remeikis, L. Giniūnas, and M. Vengris, Applied Physics B 12 (123) (2017).

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