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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

Enhancement of gain and efficiency of Ho:YLF energy booster through deep thermoelectric cooling

TL;DR: In this paper , a two-stage energy booster in a Ho:YLF Chirped Pulse Amplification laser with -20°C thermoelectric cooling rather than room temperature water was used to achieve 60 mJ pulse energy at 1 kHz repetition rate with 8.5 mJ input.
Posted Content

Enhancing high harmonic generation in a short-pulse two-color laser field by controlling the atomic-electron subcycle detachment and acceleration dynamics

TL;DR: In this article, a few-cycle optical waveform obtained by superposing two laser pulses of different color delayed optimally relative to each other is proposed to enhance the efficiency of high-order harmonic generation.
Proceedings ArticleDOI

High energy high repetition rate compact picosecond Holmium YLF laser for mid-IR OPCPA pumping

TL;DR: In this article, the authors present results about a high energy picosecond Holmium YLF laser developed in order to be used as the puming laser for the first mid-IR optical parametric chirped pulse amplifier (OPCPA) operating at a center wavelength of 7 μm with output parameters suitable already for strong field experiments.
Proceedings ArticleDOI

Detecting radiation in a standoff geometry with mid-IR laser breakdown

TL;DR: In this article, a chirped, mid-IR laser is used to drive a cascaded avalanche breakdown seeded by electrons or negative ions whose density is elevated in the vicinity of a radioactive source.
Journal ArticleDOI

Multi-mJ Scaling of 5-Optical Cycle, 3 µm OPCPA

TL;DR: In this article, an optical parametric chirped pulse amplifier (OPCPA) operating at 3 µm yielding few-cycle pulses and multi-mJ output energy is presented.
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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