Abu-Safia H A, Al-Sharif A I, Abu Aljarayesh I O
Appl Opt. 1993 Sep 1;32(25):4831-5. doi: 10.1364/AO.32.004831.
Rugate filters reflectance spectra were calculated for various index profiles with half-Gaussian modulation; graded-index as well as step-index profiles were used. The results show excellent sidelobe suppression around the stopbands, relatively high optical density, and good flatness in the reflectance band.