Highly efficient broadband double-sided Fresnel lens for THz range

Modern passive THz setups require effective optical elements with a large numerical aperture. Here we propose a new type of the optical element for THz applications, which is a broadband double-sided Fresnel-like lens with an optimized thickness. The optimization is performed to obtain a very low at...

Ausführliche Beschreibung

Bibliographische Detailangaben

Veröffentlicht in:	Optics letters 2012-06, Vol.37 (12), p.2214-2216
Hauptverfasser:	Sypek, Maciej, Makowski, Michał, Hérault, Emilie, Siemion, Agnieszka, Siemion, Andrzej, Suszek, Jarosław, Garet, Frédéric, Coutaz, Jean-Louis
Format:	Artikel
Sprache:	eng
Schlagworte:	Attenuation Broadband Diffraction Lenses Numerical aperture Optimization Spectroscopy Wavelengths
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!