Ultrafast spectroscopy: State of the art and open challenges

M Maiuri, M Garavelli, G Cerullo - Journal of the American …, 2019 - ACS Publications
Ultrafast spectroscopy techniques use sequences of ultrashort light pulses (with femto-to
attosecond durations) to study photoinduced dynamical processes in atoms, molecules …

Progress and prospects in optical ultrafast microscopy in the visible spectral region: Transient absorption and two-dimensional microscopy

N Gross, CT Kuhs, B Ostovar, WY Chiang… - The Journal of …, 2023 - ACS Publications
Ultrafast optical microscopy, generally employed by incorporating ultrafast laser pulses into
microscopes, can provide spatially resolved mechanistic insight into scientific problems …

Charge separation in the photosystem II reaction center resolved by multispectral two-dimensional electronic spectroscopy

HH Nguyen, Y Song, EL Maret, Y Silori, R Willow… - Science …, 2023 - science.org
The photosystem II reaction center (PSII RC) performs the primary energy conversion steps
of oxygenic photosynthesis. While the PSII RC has been studied extensively, the similar time …

Probing the heterogeneous structure of eumelanin using ultrafast vibrational fingerprinting

C Grieco, FR Kohl, AT Hanes, B Kohler - Nature Communications, 2020 - nature.com
Eumelanin is a brown-black biological pigment with sunscreen and radical scavenging
functions important to numerous organisms. Eumelanin is also a promising redox-active …

Vibronic structure of photosynthetic pigments probed by polarized two-dimensional electronic spectroscopy and ab initio calculations

Y Song, A Schubert, E Maret, RK Burdick… - Chemical …, 2019 - pubs.rsc.org
Bacteriochlorophyll a (Bchl a) and chlorophyll a (Chl a) play important roles as light
absorbers in photosynthetic antennae and participate in the initial charge-separation steps …

Full visible range two-dimensional electronic spectroscopy with high time resolution

D Timmer, DC Lünemann, S Riese, AD Sio… - Optics …, 2023 - opg.optica.org
Two-dimensional electronic spectroscopy (2DES) is a powerful method to study coherent
and incoherent interactions and dynamics in complex quantum systems by correlating …

Versatile femtosecond laser synchronization for multiple-timescale transient infrared spectroscopy

J Helbing, P Hamm - The Journal of Physical Chemistry A, 2023 - ACS Publications
Several ways to electronically synchronize different types of amplified femtosecond laser
systems are presented based on a single freely programmable electronics hardware …

Excitonic structure and charge separation in the heliobacterial reaction center probed by multispectral multidimensional spectroscopy

Y Song, R Sechrist, HH Nguyen, W Johnson… - Nature …, 2021 - nature.com
Photochemical reaction centers are the engines that drive photosynthesis. The reaction
center from heliobacteria (HbRC) has been proposed to most closely resemble the common …

[HTML][HTML] Two-dimensional electronic–vibrational spectroscopy: Exploring the interplay of electrons and nuclei in excited state molecular dynamics

EA Arsenault, P Bhattacharyya, Y Yoneda… - The Journal of …, 2021 - pubs.aip.org
Two-dimensional electronic–vibrational spectroscopy (2DEVS) is an emerging
spectroscopic technique which exploits two different frequency ranges for the excitation …

Ultrafast molecular movies: Probing chemical dynamics with femtosecond electron and X-ray diffraction

Q Wang, L Yun, J Yang - CCS Chemistry, 2024 - chinesechemsoc.org
Understanding the process of chemical reactions has always been a relentless pursuit for
chemists. The development of femtosecond pump-probe techniques since the 1980s has …