Journal
APPLIED OPTICS
Volume 59, Issue 5, Pages A123-A127Publisher
Optica Publishing Group
DOI: 10.1364/AO.59.00A123
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Funding
- Munich-Centre for Advanced Photonics
- HrvatskaZaklada za Znanost [IP-2016-06-2168]
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Metal-dielectric phase-shifting multilayer optical elements have been developed, providing broadband, virtually dispersion-free polarization manipulation down to the few-cycle level. These optical elements are Ag = Al2O3 mirrors that operate in the spectral range from 500 to 100 nm, exhibiting reflectance higher than 95%, and a differential phase shift between the s- and p-polarization of about 90 degrees distributed over four bounces. The mirrors have been designed, produced, and reliably characterized based on spectral photometric and ellipsometric data using a non-parametric approach as well as a multi-oscillator model. The optical elements were implemented into a few-cycle laser system, where they transformedlinearly polarized few-cycle light pulses to circular polarization. (C) 2019 Optical Society of America
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