Fig. 3: Young double-slit experiment within dispersive material.
From: Momentum considerations inside near-zero index materials
a EM wave with k wavevector is sent on a double-slit with slit width D at a distance L from an observing screen. The distance between the slits is a. b First diffraction minimum as a function of refractive index. Wavelength is set to 500 nm for a separation width of a = 800 nm
