Acta Optica Sinica, Volume. 11, Issue 2, 172(1991)
Suppression of rugate filter sidelobes
In this paper some methods to suppress the rugate filter sidelobes have been discussed. It is found that rugate with good suppression of sidelobes over broad spectral regions and at the same time maintaining its stopband reflectance can be obtained by using quintio matching layers of each side and sinusoidal modulation of the remained layers.
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[in Chinese], [in Chinese], [in Chinese]. Suppression of rugate filter sidelobes[J]. Acta Optica Sinica, 1991, 11(2): 172