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Title: Fast phase cycling in non-collinear optical two-dimensional coherent spectroscopy

As optical two-dimensional coherent spectroscopy (2DCS) is extended to a broader range of applications, it is critical to improve the detection sensitivity of optical 2DCS. We developed a fast phase-cycling scheme in a non-collinear optical 2DCS implementation by using liquid crystal phase retarders to modulate the phases of two excitation pulses. The background in the signal can be eliminated by combining either two or four interferograms measured with a proper phase configuration. The effectiveness of this method was validated in optical 2DCS measurements of an atomic vapor. This fast phase-cycling scheme will enable optical 2DCS in novel emerging applications that require enhanced detection sensitivity.

 
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Award ID(s):
1707364
NSF-PAR ID:
10371332
Author(s) / Creator(s):
; ; ; ; ; ; ;
Publisher / Repository:
Optical Society of America
Date Published:
Journal Name:
Optics Letters
Volume:
45
Issue:
20
ISSN:
0146-9592; OPLEDP
Page Range / eLocation ID:
Article No. 5852
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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