27 February 2017

Optical wavelength

What is Optical Wavelength?

When there is a medium which has refractive index µ we have to use optical wavelength λµ.

The relation between optical wavelength and geometrical wavelength is given by 

λµ = λ / µ 

λµ = Optical wavelength

λ = Geometrical wavelength

µ = Refractive index of medium