Generating amplified spontaneous emission of coherent short-wave radiation involves using pump beam leading part with intensity over few 100 picoseconds at least two orders lower than short main part

摘要

The method involves irradiating a target with only one pump beam in the sub-nanosecond range with time modulated intensity distribution, having a leading and main part. The leading part has an intensity over a duration of a few 100 picoseconds whose level is at least two orders lower in comparison to the short main part with its maximum intensity of 1012 W/cm2 to 1018 W/cm2. AN Independent claim is also included for an arrangement for generating amplified spontaneous emission of coherent short-wave radiation.