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Appl Opt. 2002 Aug 20;41(24):5191-4.

Microscopic time-resolved two-dimensional imaging with a femtosecond amplifying optical Kerr gate.

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  • 1National Research Laboratory of Metrology (now the National Institute of Advanced Industrial Science and Technology), Tsukuba, Ibaraki, Japan.


We demonstrate microscopic time-resolved two-dimensional (2D) imaging that is based on a femtosecond amplifying optical Kerr gate (fs-amp OKG). The contribution of the optical nonlinear effects to the transverse imaging performance and the limit of the transverse resolving power are investigated. The optical Kerr effect in the excited state with amplification, used in the fs-amp OKG, does not deteriorate the quality of the time-resolved image at transverse resolutions up to at least 5.5 microm. We obtain a femtosecond-time-resolved 2D image of a microscopic object with a transverse resolution of 1.7 microm.

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