Open AccessSelective ultrafast control of multi-level quantum systems by subcycle and unipolar pulses
Author(s) -
Р. М. Архипов,
А. В. Пахомов,
М. В. Архипов,
Ayhan Demircan,
Uwe Morgner,
N. N. Rosanov,
Ihar Babushkin
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.393142
Subject(s) - optics , ultrashort pulse , electric field , physics , oscillation (cell signaling) , polarity (international relations) , coherent control , pulse (music) , population , pulse shaping , quantum , field (mathematics) , atomic physics , laser , quantum mechanics , chemistry , mathematics , biochemistry , demography , detector , sociology , pure mathematics , cell
The most typical way to optically control population of atomic and molecular systems is to illuminate them with radiation, resonant to the relevant transitions. Here we consider a possibility to control populations with the subcycle and even unipolar pulses, containing less than one oscillation of electric field. Despite the spectrum of such pulses covers several levels at once, we show that it is possible to selectively excite the levels of our choice by varying the driving pulse shape, duration or time delay between consecutive pulses. The pulses which are not unipolar, but have a peak of electric field of one polarity much higher (and shorter) than of the opposite one, are also capable for such control.