High field optical nonlinearity and the Kramers-Kronig relations.
نویسندگان
چکیده
The nonlinear optical response to high fields is absolutely measured for the noble gas atoms He, Ne, Ar, Kr, and Xe. We find that the response is quadratic in the laser field magnitude up to the ionization threshold of each gas. Its size and quadratic dependence are well predicted by a Kramers-Kronig analysis employing known ionization probabilities, and the results are consistent with calculations using the time-dependent Schrödinger equation.
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ورودعنوان ژورنال:
- Physical review letters
دوره 109 11 شماره
صفحات -
تاریخ انتشار 2012