https://www.osti.gov/pages/biblio/1812219-electric-field-enhancement-caused-subwavelength-sized-particles-located-surface-multilayer-dielectric-mirrors
Electric-field enhancement caused by subwavelength-sized particles located on the surface of...
The U.S. Department of Energy's Office of Scientific and Technical Information
on the surfaceelectric fieldenhancementcausedsubwavelength
https://holoeye.com/papers-references/flat-lens-based-subwavelength-focusing-and-scanning-enabled-by-fourier-translation/
Flat lens–based subwavelength focusing and scanning enabled by Fourier translation - HOLOEYE...
flatsubwavelengthfocusingscanningenabled
https://repositum.tuwien.at/handle/20.500.12708/70887
reposiTUm: Terahertz Waveguide Emitters with Subwavelength Confinement
repositumterahertzwaveguideemitterssubwavelength