Shearing interferometer based on second-harmonic generation and a novel technique of n2 direct measurements

Vladimir P. Drachev, Sergey V. Ertsenkin, Sergey V. Perminov, Vladimir P. Safonov, Pavel A. Chubakov

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We present a new wave-front sensitive interferometry technique (called dispersion shearing interferometry) for the measurement of both the sign and the magnitude of n2. The interference pattern is produced by two laterally shifted second harmonics of the laser source. Only the fundamental wave passes through the nonlinear sample, which is placed before the interferometer. We demonstrate this technique on an aggregated colloidal silver solution using a YAG:Nd laser and KTiOPO4 frequency doublers.

Original languageEnglish
Pages (from-to)8622-8625
Number of pages4
JournalApplied Optics
Volume36
Issue number33
DOIs
Publication statusPublished - 20 Nov 1997
Externally publishedYes

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