WebWe calculated diffraction efficiencies of subwavelength grating (SWG) structures for various optical device applications by using a rigorous coupled-wave analysis method. The geometrical effects, such as grating shape, height, and period, were investigated in order to obtain better antireflection performance. Cone shaped SWG structures with a taller height … WebHowever, the near-field optical eigenmodes of subwavelength plasmonic nanostructures are often highly multiplexed in both spectral and spatial distributions, making it extremely difficult to extract individual eigenmodes. We propose a novel mode analysis method that can resolve individual eigenmodes of subwavelength nanostructures, which are ...
Sub-wavelength optics - Latest research and news Nature
WebA superlens, or super lens, is a lens which uses metamaterials to go beyond the diffraction limit. For example, in 1995, Guerra [1] combined a transparent grating having 50nm lines … WebNanostructured and subwavelength waveguides have additional advantages; they are able to confine light at a length scale below the diffraction limit and enhance or suppress light-matter interaction, as well as manage fundamental properties of light such as speed and direction of energy and phase propagation. This book presents semi-analytical ... clearview okta
Subwavelength quasi-periodic array for infrared antireflection
Web30 Sep 2014 · Sub-wavelength periodic structures are arrangements of different materials with a pitch small enough to suppress the diffraction effects arising from their periodicity. … Web12 Apr 2024 · Since the discovery of extraordinary optical transmission through subwavelength hole arrays perforated in metal films [], optical field diffraction by small … Web2 Mar 2024 · Diffraction of light of a visible spectral range by subwavelength metal gratings has been investigated experimentally and theoretically using rigorous electromagnetic calculations. bluetooth 3.5mm audio receiver target