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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??m 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??m to 9??m. 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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