Collimation method that uses spiral gratings and Talbot interferometry

Chon Wen Chang, Der Chin Su

Research output: Contribution to journalJournal Article peer-review

31 Scopus citations

Abstract

The tested light is projected onto an arrangement composed of two special spiral gratings, in which the second spiral grating is positioned at the Talbot image of the first one. From the shapes of the resultant moiré fringes, the quality of collimation of the tested light can be easily checked.

Original languageEnglish
Pages (from-to)1783-1784
Number of pages2
JournalOptics Letters
Volume16
Issue number22
DOIs
StatePublished - 15 11 1991
Externally publishedYes

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