title: Evaluation of the focal distance of lenses by white-light Lau phase interferometry.
abstract: 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.
authors.affiliation: Laser Application and Holography Laboratory, Instrument Design and Development Centre, Indian Institute of Technology, Delhi, New Delhi.
authors.forename: Madhuri
authors.initials: M
authors.lastname: Thakur
authors.forename: Chandra
authors.initials: C
authors.lastname: Shakher