Half-cycle attosecond pulse-induced dynamics of space-time photonic crystals

2024/02/25 by Arkhipov, Rostislav
#FOS: Physical sciences #Optics (physics.optics)

paper · doi:10.48550/arxiv.2402.16122

Abstract

Rapidly changing the refractive index of a medium in space and time (space-time photonic crystal, STPC) has been a challenging task. Such a rapid change can be achieved by carrier-wave Rabi flopping. We show that it can be realized when a train of half-cycle light pulses collide in a simple three-level atomic medium. We found the formation of Bragg microcavities and demonstrated their ultrafast control in this case. The proposed approach is a convenient way to control medium properties on the sub-cycle time scale. It is a demonstration of the formation of STPCs and their ultrafast control in a simple atomic medium, which has been a difficult task until now.

Related

• Generation and control of population difference gratings in a three-level hydrogen atomic medium using half-cycle attosecond pulses
• Bragg-like microcavity formed by collision of single-cycle self-induced transparency light pulses in a resonant medium
• Momentum controlled optical pulse amplification in photonic time crystals
• Ultrafast Optical Modulation by Virtual Interband Transitions
• Photonic time crystals assisted by quasi-bound states in the continuum