Abstract
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/Al 2O 3 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 ◦ 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 transformed linearly polarized few-cycle light pulses to circular polarization.
Originalsprache | englisch |
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Seiten (von - bis) | A123-A127 |
Fachzeitschrift | Applied Optics |
Jahrgang | 59 |
Ausgabenummer | 5 |
DOIs | |
Publikationsstatus | Veröffentlicht - 10 Feb. 2020 |
Extern publiziert | Ja |
Schlagwörter
- Circular polarization
- Optical coating design
- Optical elements
- Phase modulation
- Phase shift
- Short pulse operation
ASJC Scopus subject areas
- Ingenieurwesen (sonstige)
- Atom- und Molekularphysik sowie Optik
- Elektrotechnik und Elektronik
Fields of Expertise
- Advanced Materials Science