Journal ArticleDOI
90 GW peak power few-cycle mid-infrared pulses from an optical parametric amplifier
Giedrius Andriukaitis,T. Balčiūnas,Skirmantas Alisauskas,Audrius Pugžlys,Andrius Baltuška,Tenio Popmintchev,Ming-Chang Chen,Margaret M. Murnane,Henry C. Kapteyn +8 more
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TLDR
A compact 20 Hz repetition-rate mid-IR OPCPA system operating at a central wavelength of 3900 nm with the tail-to-tail spectrum extending over 600 nm and delivering 8 mJ pulses that are compressed to 83 fs opens a range of unprecedented opportunities for tabletop ultrafast science.Abstract:
We demonstrate a compact 20 Hz repetition-rate mid-IR OPCPA system operating at a central wavelength of 3900 nm with the tail-to-tail spectrum extending over 600 nm and delivering 8 mJ pulses that are compressed to 83 fs (<7 optical cycles). Because of the long optical period (∼13 fs) and a high peak power, the system opens a range of unprecedented opportunities for tabletop ultrafast science and is particularly attractive as a driver for a highly efficient generation of ultrafast coherent x-ray continua for biomolecular and element specific imaging.read more
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Time-domain spectroscopy of optical parametric amplification for phase-stable terahertz-to-midinfrared pulses
TL;DR: In this paper, the authors demonstrate time-domain spectroscopy of terahertz (THz)-to-mid-infrared (MIR) pulses up to around 50 THz frequency based on a highly-stable Yb:KGW regenerative amplifier with pulse duration of 255 fs.
Journal ArticleDOI
Dispersion management for optical parametric amplifiers in midinfrared
TL;DR: In this paper, a scheme based on Martinez-type grating stretcher and a bulk compressor is proposed and numerically analyzed for the transfer of dispersion management schemes for optical parametric (chirped pulse) amplifiers from NIR to MIR.
Journal ArticleDOI
Influence of molecular absorption of a ground atmospheric path on characteristics of filamentation region of high-power CO2 laser radiation
Yu. E. Geynts,A. A. Zemlyanov +1 more
TL;DR: Theoretical aspects of self-focusing and filamentation in air of high-power pulsed CO2 laser radiation with a carrier wavelength of 10.6 μm are considered in this paper.
Journal ArticleDOI
Ionization rate and plasma dynamics at 3.9 micron femtosecond photoionization of air
TL;DR: In this paper , the authors report direct measurements of total electron count and electron number densities generated at 3.9 μm femtosecond mid-IR tunneling ionization of atmospheric air using constructive-elastic microwave scattering.
References
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Journal ArticleDOI
The attosecond nonlinear optics of bright coherent X-ray generation
TL;DR: In this paper, the Roentgen X-ray tube was used for high-order harmonic generation with small-scale femtosecond laser technology, which combines the microscopic attosecond science of atoms driven by intense laser fields with the macroscopic extreme nonlinear optics of phase matching.
Journal ArticleDOI
Infrared Two-Color Multicycle Laser Field Synthesis for Generating an Intense Attosecond Pulse
TL;DR: The proposed method enables the requirements for the pump pulse duration to be relaxed but also to reduce ionization of the harmonic medium, which opens the door to create an intense isolated attosecond pulse using a conventional femtosecond laser system.
Journal ArticleDOI
Mid-IR short-pulse OPCPA with micro-Joule energy at 100kHz
TL;DR: A novel mid-IR source based on optical parametric chirped pulse amplification (OPCPA) generating 96 fs pulses (9.0 cycles) at 3.2 mm with an energy of 1.2 microJ, at a repetition rate of 100 kHz is presented.
Journal ArticleDOI
Self-compression of millijoule 1.5 microm pulses.
Oliver D. Mücke,Skirmantas Alisauskas,Aart J. Verhoef,Audrius Pugžlys,Andrius Baltuška,Valerijus Smilgevičius,J. Pocius,L. Giniūnas,Romualdas Danielius,Nicolas Forget +9 more
TL;DR: In this article, the authors demonstrate a four-stage optical parametric chirped-pulse amplification system that delivers carrier-envelope phase-stable approximately 1.5 microm pulses with energies up to 12.5 mJ before recompression.
Journal ArticleDOI
Efficient continuum generation exceeding 200 eV by intense ultrashort two-color driver.
Francesca Calegari,Caterina Vozzi,Matteo Negro,Giuseppe Sansone,Fabio Frassetto,Luca Poletto,Paolo Villoresi,M. Nisoli,S. De Silvestri,Salvatore Stagira +9 more
TL;DR: Results indicate the possibility to produce bright attosecond pulses approaching the soft X spectral region and contribute to significantly extending the harmonic emission to higher photon energies, whereas the VIS pulse improves the conversion efficiency of the process.
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Bright Coherent Ultrahigh Harmonics in the keV X-ray Regime from Mid-Infrared Femtosecond Lasers
Tenio Popmintchev,Ming-Chang Chen,Dimitar Popmintchev,Paul Arpin,Susannah Brown,Skirmantas Alisauskas,Giedrius Andriukaitis,Tadas Balciunas,Oliver D. Mücke,Audrius Pugzlys,Andrius Baltuška,Bonggu Shim,Samuel E. Schrauth,Alexander L. Gaeta,Carlos Hernandez-Garcia,Luis Plaja,Andreas Becker,Agnieszka Jaron-Becker,Margaret M. Murnane,Henry C. Kapteyn +19 more