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Extraordinary Optical Transmission — Nanohole Array

Interactive 3D simulator of extraordinary optical transmission (EOT) through a periodic nanohole array in a metal film: tune period, hole diameter, metal and surrounding medium and watch surface-plasmon-mediated transmission peaks form far above the classical diffraction limit.

Nanotechnology & MEMS3DAdvanced60 FPS📱 Mobile-adapted⇄ 2D version

A periodic array of holes far smaller than the wavelength of light, punched through an opaque metal film, transmits dramatically more light than classical diffraction theory allows — at specific wavelengths set by the lattice. This simulator computes that plasmonic transmission spectrum from a simplified Drude model of the metal and the surface-plasmon momentum-matching condition, renders the nanohole array as a real instanced 3D lattice whose holes glow in proportion to the transmission at your chosen probe wavelength, and gives you live numeric readouts comparing the plasmon-enhanced transmission against the classical Bethe single-aperture limit.

⚙ Under the hood

Simulate extraordinary optical transmission through a periodic array of subwavelength holes in a metal film: tune the lattice period, hole diameter, metal and surrounding medium and watch surface-plasmon resonances boost transmission far above the classical Bethe diffraction limit.

plasmonicsnanophotonicssurface-plasmonmetamaterialsnanofabricationoptics

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install