Circularly Polarized Attosecond Pulses Enabled by an Azimuthal Phase and Polarization Grating
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| Abstract |
High-harmonic generation (HHG) is an extreme nonlinear optical process that can map the properties of an infrared driving laser beam onto short wavelength attosecond pulse trains. However, current techniques for generating circularly polarized high harmonics for probing magnetic materials and chiral systems have limitations: two-color collinear counter-rotating driving lasers result in a low cutoff photon energy, while single-color noncollinear counter-rotating schemes suffer from low conversion efficiency. |
| Year of Publication |
2025
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| Date Published |
2025-01
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| Journal Title |
ACS Photonics
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| Volume |
12
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| Issue |
1
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| Start Page or Article ID |
495-504,
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| JILA PI | |
Journal Article
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| Publication Status |
The Physics Frontiers Centers (PFC) program supports university-based centers and institutes where the collective efforts of a larger group of individuals can enable transformational advances in the most promising research areas. The program is designed to foster major breakthroughs at the intellectual frontiers of physics by providing needed resources such as combinations of talents, skills, disciplines, and/or specialized infrastructure, not usually available to individual investigators or small groups, in an environment in which the collective efforts of the larger group can be shown to be seminal to promoting significant progress in the science and the education of students. PFCs also include creative, substantive activities aimed at enhancing education, broadening participation of traditionally underrepresented groups, and outreach to the scientific community and general public.