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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

Ultrafast Nonlinear Optics in the Mid-Infrared

TL;DR: In this article, the authors proposed a method for the generation of high-intensity ultrashort pulses in the mid-IR range, which can provide new approaches for coherent and incoherent x-ray generation, enable midIR laser filamentation in the atmosphere, facilitate lasing in filaments, and give rise to unique regimes of laser-matter interactions.

Ultrafast quantum dynamics driven by the strong space charge field of a relativistic electron beam

TL;DR: In this article , the Coulomb field of a highly relativistic electron beam can be shaped into a broadband pulse suitable for driving ultrafast and strong-field physics.
Proceedings ArticleDOI

Role of CO 2 in filamentation of 3.9-μm Mid IR pulses in ambient air

TL;DR: In this article, the main loss mechanism during filamentation of loosely focused 3.9-μm pulses in ambient air, dynamic absorption by CO2 was identified, and an increase of CO2 concentration to ∼5% level (by exhaling air into 2m long openended tube) led to complete disappearance of losses.
Journal ArticleDOI

Fiber-optic soliton self-compression to subcycle pulse widths in the mid-infrared

TL;DR: In this article, the authors demonstrate physical scenarios whereby ultrashort mid-infrared pulses even with very low pulse energies can be compressed to sub-cycle pulse widths using nonlinear-optical field transformations in chalcogenide photonic-crystal fibers.
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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