Large depth of focus plasmonic metalenses based on Fresnel biprism

• Published in: AIP advances Vol. 10; no. 4; pp. 045025 - 045025-6
• Main Authors: Inclán Ladino, Adriana, Mendoza-Hernández, Job, Arroyo-Carrasco, Maximino Luis, Salas-Montiel, Rafael, García-Méndez, Manuel, Coello, Victor, Tellez-Limon, Ricardo
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 01.04.2020; American Institute of Physics- AIP Publishing LLC; AIP Publishing LLC
• Subjects: Blurring; Depth of field; Directivity; Engineering Sciences; Focusing; Integral equations; Microscopes; Optical components; Optics; Photonic; Spatial resolution; Transmission efficiency

Plasmonic metalenses are optical elements that are able to shape the amplitude and the phase of light with a high spatial resolution, standing as promising elements for new low-weight imaging technologies. A desired characteristic for metalenses is to have an extended depth of focus (DOF) to bring a...