Ultrafast coherent population transfer in two- and three-level quantum systems using sub-cycle and single-cycle pulses

被引：14

作者：

Cai, Xunming ^{[1
,2
]}

Zhao, Jingyun ^{[1
]}

Wang, Zhaoying ^{[1
]}

Lin, Qiang ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Phys, Inst Opt, Hangzhou 310027, Peoples R China

[2] Guizhou Minzu Univ, Coll Informat Engn, Guiyang 550025, Peoples R China

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2013年 / 46卷 / 17期

基金：

中国国家自然科学基金;

关键词：

NONLINEAR OPTICS; REGIME;

D O I：

10.1088/0953-4075/46/17/175602

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The interactions of sub-cycle and single-cycle pulses with two-or three-level quantum systems are studied, respectively. For the two-level quantum system, two cases in which the carrier frequency of pulses is in resonance and far from resonance with the atom are analysed. The ultrafast complete population transfer can be obtained. The sub-cycle pulse with a far off-resonant carrier frequency is found to be more suitable for the population transfer. The relation between the area of pulses and population transfer is clarified in the sub-cycle and single-cycle domain. For the Lambda-type three-level quantum system, more than 90% of population transfer can be achieved from one level to another. The scheme is insensitive to the variation of the laser parameters such as the peak Rabi frequency and the carrier frequency for both two-and three-level quantum systems.

引用

页数：7

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