A planar ultraviolet objective lens for optical axis free imaging nanolithography by employing optical negative refraction.

ABSTRACT: Lithography is one of the most key technologies for integrated circuit (IC) manufacturing and micro/nano-functional device fabrication, while the imaging objective lens plays one important role. Due to the curved surface of the conventional objective lens, the imaging field of view is limited and the objective lens system is complex. In this paper, a planar objective lens based on the optical negative refraction principle is demonstrated for achieving optical axis free and long depth of focus imaging nanolithography. Through employing a hyperbolic metamaterial composed of silver/titanium dioxide multilayers, plasmonic waveguide modes could be generated in multilayers, which results in optical negative refraction and then flat imaging at ultraviolet wavelength. The corresponding imaging cha

SUBMITTER: Kong W 

PROVIDER: S-EPMC9417967 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature