Super-bandwidth in laser pulses
2021
We present here a theoretical analysis of the interaction between an ideal two-level quantum system and a super-oscillatory pulse, like the one proposed and successfully synthesized in Ref. this http URL. As a prominent feature, these pulses present a high efficiency of the central super-oscillatory region in relation to the unavoidable side-lobes. Besides, our study shows an increase of the global bandwidth of the pulse, in the super-oscillatory region, and not only the appearance of a frequency higher than its highest Fourier-frequency component, as in the usual description of the phenomenon of super-oscillations. Beyond introducing the concept of super-bandwidth, the presented results could be relevant for experimental applications and opening new perspectives for laser-matter interaction.
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