Light-induced dynamic microcavities created in a resonant medium by collision of non-harmonic rectangular 1-fs light pulses

Electromagnetically induced gratings created by extremely short non-overlapping pulses of light in a three-level resonant medium

“…Another possible application of ultra-short [36][37][38][39] and extremely short pulses [40][41][42][43][44][45][46][47][48][49][50][51] is the creation and control of electromagnetically induced atomic population gratings (EMIGs). In conventional approaches, such EMIGs are created by the superposition of two coherent monochromatic laser beams in the medium by the formation of the interference pattern [52].…”

“…The interference of the polarization waves of the medium that generated each previous pulse with the subsequent pulses is the physical mechanism for the generation of such gratings [40][41][42][43][44][45][46][47][48][49][50][51]. In the case of half-cycle pulses, when their direct interference is impossible, when the amplitude of the pulses is small, their effect on quantum systems can be described in terms of interference of pulse areas [17,47,49].…”

“…The possibility of guidance and ultra-fast control of such EMIGs by means of single-cycle and half-cycle pulses has been theoretically studied in the works [17,[40][41][42][43][44][45][46][47][48][49][50][51]. However, these studies have been carried out in a variety of approximations.…”