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11 November 2009 Multi-color, multi-beam interferometry of laser-generated XUV harmonic radiation
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We present a novel interferometric setup working in the XUV spectral range. The interferometer consists of a multi-pinhole mask and a transmission grating. In the case the light source consists of discrete spectral lines as is the case for laser-generated high harmonics the interferometer is capable of recording interferograms for multiple colors simultaneously. The device presented in this publication is an improvement of our recently published setup in a way which allows, in principle, for single-shot measurements of the temporal coherence length of a set of high harmonics. We present an experiment in which the influence of a spectral chirp of the driving laser on the coherence length of the generated harmonic radiation is studied.
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Dirk Hemmers and Georg Pretzler "Multi-color, multi-beam interferometry of laser-generated XUV harmonic radiation", Proc. SPIE 7501, International Conference on Ultrafast and Nonlinear Optics 2009, 75010C (11 November 2009);

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