Direct determination of focal length by using Talbot interferometry

A new and simple technique for the determination of the focal length of positive lenses and concave spherical surfaces by Talbot interferometry is described. Results of measurements are presented. We show that high measurement accuracy can be achieved with this technique.

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Bibliographische Detailangaben
Veröffentlicht in:	Applied Optics 1992-10, Vol.31 (28), p.5984-5987
Hauptverfasser:	Sriram, K V, Kothiyal, M P, Sirohi, R S
Format:	Artikel
Sprache:	eng
Schlagworte:	Exact sciences and technology Instruments, apparatus, components and techniques common to several branches of physics and astronomy Physics
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	A new and simple technique for the determination of the focal length of positive lenses and concave spherical surfaces by Talbot interferometry is described. Results of measurements are presented. We show that high measurement accuracy can be achieved with this technique.
ISSN:	0003-6935 1559-128X 1539-4522
DOI:	10.1364/AO.31.005984