Wave-front phase measurements of high-order harmonic beams by use of point-diffraction interferometry.
نویسندگان
چکیده
We report the wave-front phase measurement of high-order harmonics employing point-diffraction interferometry. The high-order harmonics generated in a gas-filled hollow tube showed excellent spatial coherence over nearly the whole cross section of the harmonic beams. Using this coherent harmonic source in the extreme-ultraviolet-soft-x-ray region, we have demonstrated the operation of a point-diffraction interferometer and measured the wave-front phase of high-order harmonics.
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ورودعنوان ژورنال:
- Optics letters
دوره 28 6 شماره
صفحات -
تاریخ انتشار 2003