Measurements Of Ultrasmall Displacements

S. F. Jacobs

doi:10.1117/12.955886

21 November 1977 Measurements Of Ultrasmall Displacements

S. F. Jacobs

Proceedings Volume 0126, Clever Optics: Innovative Applications of Optics; (1977) https://doi.org/10.1117/12.955886
Event: 21st Annual Technical Symposium, 1977, San Diego, United States

Abstract

Techniques for resolving small transverse distances are compared with those for resolving small longitudinal displacements. As the desired resolution becomes finer, there comes a point where both problems are best solved by switching to the transform domain. Techniques for measuring displacement can be divided into those used for nonoscillatory vs oscillatory motions. Examples are described for achieving λ/10⁵ for the former and λ/10⁹ for the latter. Fundamental limitations are discussed.

Citation Download Citation

S. F. Jacobs "Measurements Of Ultrasmall Displacements", Proc. SPIE 0126, Clever Optics: Innovative Applications of Optics, (21 November 1977); https://doi.org/10.1117/12.955886

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