Selective Enhancements in 2D Fourier Transform Optical Spectroscopy with Tailored Pulse Shapes

被引：10
作者：
Wen, Patrick [1 ]
Nelson, Keith A. [1 ]
机构：
[1] MIT, Dept Chem, Cambridge, MA 02139 USA
来源：
JOURNAL OF PHYSICAL CHEMISTRY A | 2013年 / 117卷 / 29期
关键词：
COHERENT CONTROL; QUANTUM-WELLS; ELECTRONIC SPECTROSCOPY; SPECTRA; SEMICONDUCTOR;
D O I：
10.1021/jp401150d
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Spectral features in two-dimensional Fourier transform optical spectroscopy were selectively enhanced using pulse shapes and sequences designed to amplify specific excited-state resonances. The enhancement was achieved by tailoring a small set of input parameters that control the amplitude and phase profiles of the excitation fields, coherently driving or suppressing selected resonances. The tailored pulse shapes were applied to enhance exciton and biexciton coherences in a semiconductor quantum well. Enhancement of selected resonances was demonstrated even in cases of spectrally overlapping features and complex many-body interactions. Modifications in the 2D spectral line shapes due to the tailored waveforms were calculated using the optical Bloch equations.
引用
收藏
页码：6380 / 6387
页数：8
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