The position shifts of the reflective beam, from the thin film filter have been investigated. Not only positive beam shift,but also negative beam shift have found in the common superprism effect of thin film coatings.
© 2007 Optical Society of America
X. Liu, X. Sun, P. Gu, Y. Zhang, and H. Li, " Positive and Negative Spatial Dispersion Effects of Optical Thin Films," in Optical Interference Coatings, OSA Technical Digest (CD) (Optical Society of America, 2007), paper TuC8.
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