Open AccessBroadband two-dimensional electronic spectroscopy in an actively phase stabilized pump-probe configuration
Author(s) -
Weida Zhu,
Rui Wang,
Chunfeng Zhang,
Wang Guo-dong,
Yunlong Liu,
Wei Zhao,
Xingcan Dai,
Xiaoyong Wang,
Giulio Cerullo,
Steven T. Cundiff,
Min Xiao
Publication year - 2017
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.021115
Subject(s) - optics , interferometry , ultrashort pulse , phase modulation , materials science , broadband , spectroscopy , phase (matter) , amplifier , physics , optoelectronics , laser , phase noise , cmos , quantum mechanics
We introduce a novel configuration for two-dimensional electronic spectroscopy (2DES) that combines the partially collinear pump-probe geometry with active phase locking. We demonstrate the method on a solution sample of CdSe/ZnS nanocrystals by employing two non-collinear optical parametric amplifiers as the pump and probe sources. The two collinear pump pulse replicas are created using a Mach-Zehnder interferometer phase stabilized by active feedback electronics. Taking the advantage of separated paths of the two pump pulses in the interferometer, we improve the signal-to-noise ratio with double modulation of the individual pump beams. In addition, a quartz wedge pair manipulates the phase difference between the two pump pulses, enabling the recovery of the rephasing and non-rephasing signals. Our setup integrates many advantages of available 2DES techniques with robust phase stabilization, ultrafast time resolution, two-color operation, long delay scan, individual polarization manipulation and the ease of implementation.