Extraordinary Optical Transmission · Ebbesen 1998
unseel.com · subwavelength holes · surface plasmons · λ_max ≈ P·√[ε_m ε_d/(ε_m+ε_d)]
Transmission 0.00
SPP order
phase
Incident red light (~700 nm)
Silver film (holes ~150 nm)
Surface plasmon polaritons
Transmitted light
Unseel.com · Extraordinary Optical Transmission: How Light Squeezes Through Subwavelength Holes