In a medium with a refractive index of zero n = 0, the effective wavelength becomes infinite, λ = 2πc/ωn→∞, and the spatial phase distribution of a propagating wave becomes uniform over the entire ...

Lithium niobite (LN) with an ultra-wide optical transparent window has shown excellent nonlinear, electro-optic, acoustic-optic, piezoelectric, thermoelectric and photorefractive effects. It is an ...

Lumus, the company that developed the waveguide optic used in Meta’s Ray-Ban Display smart glasses, says it has achieved a ...