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@ARTICLE{Biesterfeld:641898,
      author       = {Biesterfeld, Peer and Schönberg, Arthur and Seitz, Marc
                      and Jimenez, Nayla and Lang, Tino and Seidel, Marcus and
                      Balla, Prannay and Winkelmann, Lutz and Sunny, Jyothish K
                      and Fröhlich, Sven and Mosel, Philip and Hartl, Ingmar and
                      Calegari, Francesca and Morgner, Uwe and Kovacev, Milutin
                      and Heyl, Christoph M and Trabattoni, Andrea},
      title        = {{P}ost-compression of a {Q}-switched laser in a glass-rod
                      multi-pass cell},
      journal      = {JPhys photonics},
      volume       = {8},
      number       = {1},
      issn         = {2515-7647},
      address      = {Bristol},
      publisher    = {IOP Publishing},
      reportid     = {PUBDB-2025-05244},
      pages        = {015013},
      year         = {2025},
      abstract     = {Q-switched lasers are compact, cost-effective, and highly
                      pulse energy-scalable sources for nanosecond-scale laser
                      pulses. The technology has been developed for many decades
                      and is widely used in scientific, industrial and medical
                      applications. However, their inherently narrow bandwidth
                      imposes a lower limit on pulse duration - typically in the
                      few-hundred-picosecond range - limiting the applicability of
                      Q-switched technology in fields that require ultrafast laser
                      pulses in the few-picosecond or femtosecond regime. In
                      contrast, mode-locked lasers can produce broad-band,
                      ultrafast (<1 ps) pulses, but are complex, expensive, and
                      typically require a large footprint. To bridge the parameter
                      gap between these two laser platforms - in terms of pulse
                      duration and achievable peak power - we here propose a
                      Herriott-type multi-pass cell (MPC) based post-compression
                      scheme for shortening the pulse durations of Q-switched
                      lasers down to the ultrafast, picosecond regime. We
                      experimentally demonstrate post-compression of 0.5 ns, 1 mJ
                      pulses from a Q-switched laser to 24 ps using a compact
                      glass-rod MPC for spectral broadening. We verify this result
                      numerically and show that compression down to a few
                      picoseconds is possible using the nanosecond MPC (nMPC).
                      Through spectral filtering approaches, the nMPC suppresses
                      detrimental nonlinear processes such as stimulated Raman
                      scattering, which have set severe limitations for
                      fiber-based post-compression of Q-switched lasers until
                      today. Our results pave the way for cost-efficient and,
                      compact ultrafast laser platforms based on Q-switched laser
                      technology.},
      cin          = {FS-ATTO / FS-PRI / FS-LA / MPL},
      ddc          = {530},
      cid          = {I:(DE-H253)FS-ATTO-20170403 / I:(DE-H253)FS-PRI-20240109 /
                      I:(DE-H253)FS-LA-20130416 / I:(DE-H253)MPL-20120731},
      pnm          = {631 - Matter – Dynamics, Mechanisms and Control
                      (POF4-631) / DFG project G:(GEPRIS)390900948 - EXC 2181:
                      STRUKTUREN: Emergenz in Natur, Mathematik und komplexen
                      Daten (390900948) / DFG project G:(GEPRIS)390715994 - EXC
                      2056: CUI: Tiefe Einblicke in Materie (390715994) / NanoXCAN
                      - Nanoscale virus imaging X-ray microscope based on
                      incoherent diffraction (101047223) / DFG project
                      G:(GEPRIS)545612524 - Multi-Pass-Zellen für
                      Laser-Plasmabeschleuniger der nächsten Generation
                      (545612524) / BMBF-13N16678 - Milliwatt-level efficient gas
                      harmonic EUV source (MEGA-EUV) Multi-pass cell development
                      for post-compression and spectral tuning (BMBF-13N16678) /
                      HIRS-0018 - Helmholtz-Lund International School -
                      Intelligent instrumentation for exploring matter at
                      different time and length scales (HELIOS)
                      $(2020_HIRS-0018)$},
      pid          = {G:(DE-HGF)POF4-631 / G:(GEPRIS)390900948 /
                      G:(GEPRIS)390715994 / G:(EU-Grant)101047223 /
                      G:(GEPRIS)545612524 / G:(DE-H253)BMBF-13N16678 /
                      $G:(DE-HGF)2020_HIRS-0018$},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1088/2515-7647/ae1fc4},
      url          = {https://bib-pubdb1.desy.de/record/641898},
}