Effective super-bandwidth in laser pulses

ENRIQUE G. NEYRA; DEMIAN A. BIASETTI; PABLO VAVELIUK; GUSTAVO TORCHIA ; FABIÁN VIDELA; LORENA REBÓN

OPTICS LETTERS

OPTICAL SOC AMER

Lugar: Washington; Año: 2021 vol. 46 p. 4761 - 4764

0146-9592

We present here a theoretical analysis of the interaction between an ideal two-level quantum system and asuper-oscillatory pulse, like the one proposed and successfully synthesized in Ref. [1, 2]. As a prominentfeature, 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 effective bandwidth of the pulse, in the super-oscillatory region, and not only the appearance of a local frequency higher than its highest Fourier-frequency component, as in the usual description of the phenomenon of super-oscillations. Beyond introducing the concept of effective super-bandwidth, the presented results could be relevant for experimental applications and opening new perspectives for laser-matter interaction.