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Title: Helicity-Selective Enhancement and Polarization Control of Attosecond High Harmonic Waveforms Driven by Bichromatic Circularly Polarized Laser Fields

Journal Article · · Physical Review Letters

High harmonics driven by two-color counter-rotating circularly-polarized laser fields are a unique source of bright, circularly-polarized, extreme ultraviolet and soft x-ray beams, where the individual harmonics themselves are completely circularly polarized. Here, we demonstrate the ability to preferentially select either the right or left circularly polarized harmonics simply by adjusting the relative intensity ratio of the bichromatic circularly polarized driving laser field. In the frequency domain, this significantly enhances the harmonic orders that rotate in the same direction as the higher intensity driving laser. In the time domain, this helicity-dependent enhancement corresponds to control over the polarization of the resulting attosecond waveforms. Here, this helicity control enables the generation of circularly-polarized high harmonics with a user-defined polarization of the underlying attosecond bursts. In the future, this technique should allow for the production of bright highly elliptical harmonic supercontinua as well as the generation of isolated elliptically polarized attosecond pulses.

Research Organization:
Univ. of Colorado, Boulder, CO (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
FG02-99ER14982
OSTI ID:
1686156
Alternate ID(s):
OSTI ID: 1374457
Journal Information:
Physical Review Letters, Vol. 119, Issue 6; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 87 works
Citation information provided by
Web of Science

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Cited By (31)

Electron rotational asymmetry in strong-field photodetachment from F by circularly polarized laser pulses journal February 2019
Electron rotational asymmetry in strong-field photodetachment from F$^-$ by circularly polarized laser pulses text January 2019
Controlling circularly polarized high-order harmonic generation in molecules by intense tricircular laser pulses journal September 2019
Control of attosecond light polarization in two-color bi-circular fields text January 2018
Signatures of Electronic Structure in Bicircular High-Harmonic Spectroscopy journal November 2017
Perspective: Towards single shot time-resolved microscopy using short wavelength table-top light sources text January 2019
Circularly polarized attosecond pulse generation and applications to ultrafast magnetism journal November 2017
Signatures of electronic structure in bi-circular high-harmonic spectroscopy text January 2017
High harmonic generation with Laguerre–Gaussian beams text January 2019
Subpetahertz helicity-modulated high-order harmonic radiation journal August 2018
Modeling tomographic measurements of photoelectron vortices in counter-rotating circularly polarized laser pulses text January 2019
Channel-closing effects in strong-field ionization by a bicircular field journal February 2018
Study of the circular dichroism of He + ion journal January 2019
Interference effect in high-order harmonic generation from degenerate current-carrying orbitals of polyatomic molecules journal February 2020
Optical Chirality in Nonlinear Optics: Application to High Harmonic Generation journal March 2018
Two-dimensional photoelectron holography in strong-field tunneling ionization by counter rotating two-color circularly polarized laser pulses journal January 2019
Polarization-based tachometer for measuring spinning rotors journal January 2018
High harmonics with spatially varying ellipticity journal January 2018
Evidence of depolarization and ellipticity of high harmonics driven by ultrashort bichromatic circularly polarized fields journal November 2018
Near-circularly polarized isolated attosecond pulse generation from coherent superposition state by a circularly polarized laser field journal May 2019
Strong-field control and enhancement of chiral response in bi-elliptical high-order harmonic generation: an analytical model journal May 2018
Quantum-orbit analysis of high-order harmonic generation by bicircular field journal August 2018
High harmonic generation with Laguerre–Gaussian beams journal July 2019
High-order harmonic generation with twisted electrons journal October 2019
Modeling tomographic measurements of photoelectron vortices in counter-rotating circularly polarized laser pulses journal December 2019
Two-color XUV plus near-IR multiphoton near-threshold ionization of the helium ion by circularly polarized light in the vicinity of the 3 p resonance journal September 2019
Probing atomic and molecular targets by intense bicircular counter-rotating laser fields journal June 2018
Perspective: Towards single shot time-resolved microscopy using short wavelength table-top light sources journal January 2019
Controlling the polarization and vortex charge of attosecond high-harmonic beams via simultaneous spin–orbit momentum conservation journal December 2018
Polarization control of isolated high-harmonic pulses journal April 2018
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