Single cycle terawatt twisted light pulses at midinfrared wavelengths above 10μm

Xing-Long Zhu, Min Chen, Su-Ming Weng, Paul McKenna, Zheng-Ming Sheng, Jie Zhang

Research output: Contribution to journalArticle

Abstract

Twisted light beams with orbital angular momentum provide an additional degree of freedom in controlling light-matter interactions, which are interesting for fundamental and applied research. Although there are various methods that can produce twisted laser beams at sub-micrometer or shorter wavelengths, it is still challenging to extend such beams to mid-infrared (mid-IR) wavelengths with relativistic intensity. Here, we present a promising scheme to generate such pulses converted through frequency downshift of intense driver optical pulses via a plasma-based photon decelerator. The resulting near-single-cycle vortex pulses cover a broad mid-IR spectral range up to 18 μm with energy conversion efficiency of 4.8% (energy ~150mJ) in the wavelength range above 7 μm. This long-wavelength infrared pulses at the terawatt level can be focused to relativistically high intensity, which may offer significant opportunities for high-field physics and ultrafast applications.
LanguageEnglish
Article number054024
JournalPhysical Review Applied
Volume12
Issue number5
DOIs
Publication statusPublished - 11 Nov 2019

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cycles
pulses
wavelengths
brakes (for arresting motion)
energy conversion efficiency
light beams
micrometers
angular momentum
degrees of freedom
laser beams
vortices
orbitals
physics
photons
interactions
energy

Keywords

  • twisted light beams
  • orbital angular momentum
  • light-matter interactions
  • mid-infrared wavelengths

Cite this

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title = "Single cycle terawatt twisted light pulses at midinfrared wavelengths above 10μm",
abstract = "Twisted light beams with orbital angular momentum provide an additional degree of freedom in controlling light-matter interactions, which are interesting for fundamental and applied research. Although there are various methods that can produce twisted laser beams at sub-micrometer or shorter wavelengths, it is still challenging to extend such beams to mid-infrared (mid-IR) wavelengths with relativistic intensity. Here, we present a promising scheme to generate such pulses converted through frequency downshift of intense driver optical pulses via a plasma-based photon decelerator. The resulting near-single-cycle vortex pulses cover a broad mid-IR spectral range up to 18 μm with energy conversion efficiency of 4.8{\%} (energy ~150mJ) in the wavelength range above 7 μm. This long-wavelength infrared pulses at the terawatt level can be focused to relativistically high intensity, which may offer significant opportunities for high-field physics and ultrafast applications.",
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Single cycle terawatt twisted light pulses at midinfrared wavelengths above 10μm. / Zhu, Xing-Long; Chen, Min; Weng, Su-Ming; McKenna, Paul; Sheng, Zheng-Ming; Zhang, Jie.

In: Physical Review Applied, Vol. 12, No. 5, 054024, 11.11.2019.

Research output: Contribution to journalArticle

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T1 - Single cycle terawatt twisted light pulses at midinfrared wavelengths above 10μm

AU - Zhu, Xing-Long

AU - Chen, Min

AU - Weng, Su-Ming

AU - McKenna, Paul

AU - Sheng, Zheng-Ming

AU - Zhang, Jie

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AB - Twisted light beams with orbital angular momentum provide an additional degree of freedom in controlling light-matter interactions, which are interesting for fundamental and applied research. Although there are various methods that can produce twisted laser beams at sub-micrometer or shorter wavelengths, it is still challenging to extend such beams to mid-infrared (mid-IR) wavelengths with relativistic intensity. Here, we present a promising scheme to generate such pulses converted through frequency downshift of intense driver optical pulses via a plasma-based photon decelerator. The resulting near-single-cycle vortex pulses cover a broad mid-IR spectral range up to 18 μm with energy conversion efficiency of 4.8% (energy ~150mJ) in the wavelength range above 7 μm. This long-wavelength infrared pulses at the terawatt level can be focused to relativistically high intensity, which may offer significant opportunities for high-field physics and ultrafast applications.

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