Two-dimensional electronic-Raman spectroscopy

Two-dimensional electronic-Raman spectroscopy

We present a new technique, two-dimensional electronic-Raman spectroscopy (2DER), which combines femtosecond stimulated Raman spectroscopy and a pulse-shaper-assisted 2D spectroscopic scheme for the actinic pump. The 2DER spectrum presents the initial actinic excitation wavelength with nanometer spe...

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Bibliographic Details
Main Authors: Zhang, Zhengyang, Huerta-Viga, Adriana, Tan, Howe-Siang
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2020
Subjects:
Science::Chemistry
Ultrafast Spectroscopy
Spectroscopy
Online Access:https://hdl.handle.net/10356/141866
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Institution: Nanyang Technological University
Language: English
Description
Summary:We present a new technique, two-dimensional electronic-Raman spectroscopy (2DER), which combines femtosecond stimulated Raman spectroscopy and a pulse-shaper-assisted 2D spectroscopic scheme for the actinic pump. The 2DER spectrum presents the initial actinic excitation wavelength with nanometer spectral resolution in the first axis and the detected stimulated Raman spectra in the second axis. We measured the correlation of the electronic and vibrational states in the photosynthetic accessory pigment β-carotene and reveal its photoexcited state manifold.

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