We used a white-light Lau phase interferometer to evaluate the focal distances of two lenses. We found that the variation in the experimentally measured value is less than ±1% from the given values. Limitations of the method and error analysis are presented.
© 2002 Optical Society of America
(050.2770) Diffraction and gratings : Gratings
Original Manuscript: June 4, 2001
Revised Manuscript: October 10, 2001
Published: April 1, 2002
Madhuri Thakur and Chandra Shakher, "Evaluation of the focal distance of lenses by white-light Lau phase interferometry," Appl. Opt. 41, 1841-1845 (2002)