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Opt Lett. 2004 Oct 15;29(20):2339-41.

Measurement of gouy phase evolution by use of spatial mode interference.

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  • 1Centre for Gravitational Physics, Faculty of Science, The Australian National University, Canberra, ACT 0200, Australia.


An experimental technique to observe and accurately measure the Gouy phase evolution of Hermite-Gaussian modes is presented. Because of the unique features of spatial mode interference frequency-locking error signals, we are able to readily perform explicit measurement of the Gouy phase in a simple and highly accurate manner. We present these data and discuss the technique and its implications.

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