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An intense, few-cycle source in the long-wave infrared.

ABSTRACT: For the last several decades, the wavelength range accessible for strong-field, few-cycle studies has remained limited to the visible, near infrared and mid-wave infrared regimes. In particular, sources in the long-wave infrared have been lacking. We report the development of a 1 kHz, few-cycle laser source with up to a 9 μm central wavelength and gigawatt peak powers. When focused, this source can ionize gas targets, which we demonstrate here through the ionization of atomic xenon at wavelengths ranging from 5 μm to 9 μm. This opens up new opportunities for fundamental atomic and molecular physics, enabling experimental tests of strong-field ionization theories in the extreme long-wavelength, few-cycle limit and the direct excitation of vibrational transitions in organic molecules.

SUBMITTER: Wilson DJ

PROVIDER: S-EPMC6461661 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature

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An intense, few-cycle source in the long-wave infrared.

Wilson Derrek J DJ Summers Adam M AM Zigo Stefan S Davis Brandin B Robatjazi Seyyed-Javad SJ Powell Jeffery A JA Rolles Daniel D Rudenko Artem A Trallero-Herrero Carlos A CA

Scientific reports 20190412 1

For the last several decades, the wavelength range accessible for strong-field, few-cycle studies has remained limited to the visible, near infrared and mid-wave infrared regimes. In particular, sources in the long-wave infrared have been lacking. We report the development of a 1 kHz, few-cycle laser source with up to a 9 μm central wavelength and gigawatt peak powers. When focused, this source can ionize gas targets, which we demonstrate here through the ionization of atomic xenon at wavelength ...[more]

PMID: 30979938

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