From a one-mode to a multi-mode understanding of conical intersection mediated ultrafast organic photochemical reactions

Y Boeije, M Olivucci - Chemical Society Reviews, 2023 - pubs.rsc.org
Over the last few decades, conical intersections (CoIns) have grown from theoretical
curiosities into common mechanistic features of photochemical reactions, whose function is …

Simulating coherent multidimensional spectroscopy of nonadiabatic molecular processes: From the infrared to the x-ray regime

M Kowalewski, BP Fingerhut, KE Dorfman… - Chemical …, 2017 - ACS Publications
Crossings of electronic potential energy surfaces in nuclear configuration space, known as
conical intersections, determine the rates and outcomes of a large class of photochemical …

Tracking ultrafast structural dynamics by time-domain Raman spectroscopy

H Kuramochi, T Tahara - Journal of the American Chemical …, 2021 - ACS Publications
In traditional Raman spectroscopy, narrow-band light is irradiated on a sample, and its
inelastic scattering, ie, Raman scattering, is detected. The energy difference between the …

Principles and applications of broadband impulsive vibrational spectroscopy

M Liebel, C Schnedermann, T Wende… - The Journal of Physical …, 2015 - ACS Publications
We present an experimental setup for recording vibrational coherences and thereby Raman
spectra of molecules in their ground and excited electronic states over the 50–3000 cm–1 …

Ultrafast laser spectroscopy uncovers mechanisms of light energy conversion in photosynthesis and sustainable energy materials

D Zigmantas, T Polívka, P Persson… - Chemical Physics …, 2022 - pubs.aip.org
The invention of the laser in 1960 gave us the ruby laser, which generally produced chaotic
pulses of light. Six years later, in 1966, a concept called passive mode-locking applied to …

Understanding/unravelling carotenoid excited singlet states

H Hashimoto, C Uragami… - Journal of the …, 2018 - royalsocietypublishing.org
Carotenoids are essential light-harvesting pigments in natural photosynthesis. They absorb
in the blue–green region of the solar spectrum and transfer the absorbed energy to (bacterio …

Probing the early stages of photoreception in photoactive yellow protein with ultrafast time-domain Raman spectroscopy

H Kuramochi, S Takeuchi, K Yonezawa, H Kamikubo… - Nature Chemistry, 2017 - nature.com
Unveiling the nuclear motions of photoreceptor proteins in action is a crucial goal in protein
science in order to understand their elaborate mechanisms and how they achieve optimal …

Femtosecond time-resolved impulsive stimulated Raman spectroscopy using sub-7-fs pulses: Apparatus and applications

H Kuramochi, S Takeuchi, T Tahara - Review of Scientific Instruments, 2016 - pubs.aip.org
We describe details of the setup for time-resolved impulsive stimulated Raman spectroscopy
(TR-ISRS). In this method, snapshot molecular vibrational spectra of the photoreaction …

Mode-selective vibrational modulation of charge transport in organic electronic devices

AA Bakulin, R Lovrincic, X Yu, O Selig… - Nature …, 2015 - nature.com
The soft character of organic materials leads to strong coupling between molecular, nuclear
and electronic dynamics. This coupling opens the way to influence charge transport in …

Imaging and controlling coherent phonon wave packets in single graphene nanoribbons

Y Luo, A Martin-Jimenez, M Pisarra, F Martin… - Nature …, 2023 - nature.com
The motion of atoms is at the heart of any chemical or structural transformation in molecules
and materials. Upon activation of this motion by an external source, several (usually many) …