Journal
OPTICS LETTERS
Volume 43, Issue 9, Pages 1958-1961Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.43.001958
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Funding
- Canada Foundation for Innovation (CFI)
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Fonds de Recherche du Quebec-Nature et Technologies (FRQNT)
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We report on a simple way to directly measure the Gouy phase shift of a strongly focused laser beam. This is accomplished by using a recent technique, namely, interferometric second-harmonic generation. We expect that this method will be of interest in a wide range of research fields, from high-harmonic and attosecond pulse generation to femto-chemistry and nonlinear microscopy. (C) 2018 Optical Society of America.
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