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Journal ArticleDOI

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

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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.

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Citations
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Journal ArticleDOI

Generation of ultrashort pulses of electromagnetic radiation in the mid- and far-infrared ranges

TL;DR: In this article, the authors used difference-frequency mixing of the signal and idler waves delivered through an optical parametric amplification of a week broadband seed by high-power near-infrared ultrashort laser pulses.
Journal ArticleDOI

Wavelength scaling laws for high-order harmonic yield from atoms driven by mid- and long-wave infrared laser fields

TL;DR: In this article, the effect of the magnetic field of a laser pulse on the dynamics of the field-ionized electron and the atomic bound-state depletion was investigated for high-order harmonic generation (HHG) in gases.
Journal ArticleDOI

Ultrabroadband microwave radiation from near- and mid-infrared laser-produced plasmas in air

TL;DR: In this article, a radial diffusive expansion wave of the plasma electrons drives a longitudinal current along the plasma surface whose amplitude varies with the total residual electron energy imparted by the laser field, and this longitudinal current produces the detected radiation.
Journal ArticleDOI

Intense infrared lasers for strong-field science

TL;DR: In this paper , the authors introduce several important wavelength scaling laws in strong-field physics, then describe recent breakthroughs in short- (1.4-3 μm), mid- (3-8μm), and long-wave (8-15 μm) infrared laser technology.
Proceedings ArticleDOI

High repetition rate, mJ-level, mid-IR OPCPA system

TL;DR: In this article, a kHz repetition-rate mid-IR laser system based on OPCPA was proposed, optimized for soft x-ray high harmonic generation, with bandwidth compressible to <100fs.
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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