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
Citations
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Journal ArticleDOI
Multi-keV ultrahigh-order harmonics produced in gases with subrelativistically intense mid-IR laser pulses
TL;DR: In this paper, the authors analyzed the role of the laser-induced depletion of atomic levels and the magnetic field effects in limiting the generation efficiency and shaping the spectral profile of the harmonic radiation produced with mid-IR laser pulses in various gaseous targets.
Journal ArticleDOI
Pulse duration effects on laser-assisted electron transfer cross section for He2+ ions colliding with atomic hydrogen
TL;DR: In this paper, the effect of the pulse duration for an ultra-fast and intense laser on the fundamental process of electron capture was analyzed by analyzing the excitation probability into the n = 2 and n = 3 states when He2+ collides with atomic hydrogen in the 0.05-10 keV/amu energy range, a region of interest for diagnostic processes on plasma and fusion power reactors.
Journal ArticleDOI
Dual-Chirped Optical Parametric Amplification: A Method for Generating Super-Intense Mid-Infrared Few-Cycle Pulses
TL;DR: In this paper, a dual-chirped optical parametric amplification (DC-OPA) method was proposed to obtain TW-class mid-infrared (MIR) femtosecond laser pulses in the 1-4m$ m region using a Ti:sapphire laser with sub-joule energy to pump the DC-OPA system.
Journal ArticleDOI
On the potential of mid-IR lasers for generating high harmonics with subnanometer wavelengths in gases
M. Yu. Emelin,M. Yu. Ryabikin +1 more
TL;DR: In this article, the influence of the magnetic field of a laser pulse and the depletion of bound levels of working medium atoms on the generation of high harmonics of mid-IR laser radiation in gases is investigated using numerical quantum-mechanical calculations.
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