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Journal ArticleDOI

90 GW peak power few-cycle mid-infrared pulses from an optical parametric amplifier

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.

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Citations
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Book ChapterDOI

The Role of Nuclear Vibrational Motion in Molecular High Harmonic Generation in a Mid-Infrared Laser Field

TL;DR: In this article, isolated attosecond pulse (IAP) generation and driving wavelength effect of molecular high harmonic generation were investigated in the water window of molecules driven by a multi-cycle 2400nm mid-infrared laser field at SIOM.
Proceedings ArticleDOI

High power top hat pulses from an Yb MOPA for efficient OPA pumping

TL;DR: In this paper, a programmable acousto optic dispersion filter was used for inline phase-only pulse shaping in a 6mJ kHz DPSS Yb:CaF2 amplifier.
Posted Content

Sub 100-fs, 5.2-$\mu$m ZGP Parametric Amplifier Driven by a ps Ho:YAG Chirped Pulse Amplifier and its application to high harmonic generation

TL;DR: In this article, a 1 kHz repetition-rate mid-IR optical parametric amplifier (OPA) system operating at a central wavelength of 5.2 $m with the tail-to-tail spectrum extending over 1.5 $m and delivering 40 $J pulses that are compressed to 99 fs (5.6 optical cycles).
Proceedings ArticleDOI

Highly Efficient THz Generation by Mid-IR Pulses

TL;DR: In this paper, the authors report on THz generation driven by 3.9 µm pulses, via either optical rectification in organic crystals or in two-color plasma filaments, achieving an outstanding THz conversion efficiency of more than 2% and bandwidth exceeding 15 THz.
Proceedings ArticleDOI

Losses and intensity clamping during filamentation of mid-IR pulses in ambient air

TL;DR: In this paper, different regimes of filamentation of multi-millijoule mid-infrared pulses in ambient air can be achieved by varying focusing conditions and chirp of the driving pulses.
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.

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.

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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