All Problems Interference of Light
Problem 5.96
For the Fabry-Perot étalon of thickness \(d=2.5 \mathrm{~cm}\) find: (a) the highest order of interference of light with wavelength \(\lambda=0.50 \mu \mathrm{m}\) (b) the dispersion region \(\Delta \lambda,\) i.e. the spectral interval of wavelengths, within which there is still no overlap with other orders of interference if the observation is carried out approximately at wavelength \(\lambda=0.50 \mu \mathrm{m}\)
(a) \(k_{\max }=2 d / \lambda=1.0 \cdot 10^{5}\) (b) \(\Delta \lambda=\lambda / k=\lambda^{2} / 2 d=5 \mathrm{pm}\)