Angular distribution of positrons emitted from metal surfaces
نویسندگان
چکیده
منابع مشابه
Angular distribution of high-order harmonics emitted from rare gases at low density.
We have measured the far-field angular distributions of high harmonics (orders 11—41) generated by a 1-p,m, 1-ps laser pulse [(0.3—3)X 10 W/cm ] in low-density Ar, Kr, and Xe targets (~ 1 Torr, 1-mm thick). The far-field harmonic distributions show a narrow central structure surrounded by broad wings that contain approximately 75% of the harmonic energy. Low-density targets and f/70 focusing we...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1988
ISSN: 0163-1829
DOI: 10.1103/physrevb.38.11131