Resonance-domain diffractive lens for the terahertz region.


Journal Article

Diffractive optics has long served as the basis of spectroscopic measurements of materials. Operation in the resonance domain further allows these elements to achieve high efficiency and polarization control. An effective grating theory is a practical tool for modeling such optics, and here we extend use of this theory to the terahertz region, experimentally demonstrating an all-dielectric binary off-axis diffractive lens. We achieve a high-efficiency, polarization-independent optic that both focuses and disperses terahertz light, suggesting potential applications in pharmaceutical, security, and semiconductor imaging.

Full Text

Duke Authors

Cited Authors

  • Nadell, C; Fan, K; Padilla, W

Published Date

  • May 2018

Published In

Volume / Issue

  • 43 / 10

Start / End Page

  • 2384 - 2387

PubMed ID

  • 29762598

Pubmed Central ID

  • 29762598

Electronic International Standard Serial Number (EISSN)

  • 1539-4794

International Standard Serial Number (ISSN)

  • 0146-9592

Digital Object Identifier (DOI)

  • 10.1364/ol.43.002384


  • eng