scholarly journals Monitoring of singlet fission via two-dimensional photon-echo and transient-absorption spectroscopy: Simulations by multiple Davydov trial states

2019 ◽  
Vol 151 (11) ◽  
pp. 114102 ◽  
Author(s):  
Kewei Sun ◽  
Zhongkai Huang ◽  
Maxim F. Gelin ◽  
Lipeng Chen ◽  
Yang Zhao
Keyword(s):  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Photon Echo ◽  
Transient Absorption Spectroscopy ◽  
Two Dimensional ◽  
Singlet Fission

scholarly journals Widely tunable cavity-enhanced ultrafast spectroscopy

2019 ◽  
Vol 205 ◽  
pp. 01024
Author(s):  
Myles C. Silfies ◽  
Yuning Chen ◽  
Henry Timmers ◽  
Abijith S. Kowligy ◽  
Alex Lind ◽  
...  
Keyword(s):  
Gas Phase ◽  
Absorption Spectroscopy ◽  
Ultrafast Spectroscopy ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Two Dimensional ◽  
Frequency Combs ◽  
Gas Phase Clusters ◽  
Uv Visible ◽  
Tunable Frequency

Generation of widely tunable frequency combs in the UV, visible, and infrared is discussed for use in cavity-enhanced transient absorption spectroscopy on gas-phase clusters. Progress towards cavity-enhanced two-dimensional spectroscopy is also presented.

UV Two-Dimensional Transient Absorption Spectroscopy

2012 ◽  
Author(s):  
Gerald Auböck ◽  
Cristina Consani ◽  
Frank van Mourik ◽  
Majed Chergui
Keyword(s):  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Two Dimensional

Ultrafast Protein Dynamics of Bacteriorhodopsin Probed by Photon Echo and Transient Absorption Spectroscopy

2002 ◽  
Vol 106 (23) ◽  
pp. 6067-6080 ◽  
Author(s):  
John T. M. Kennis ◽  
Delmar S. Larsen ◽  
Kaoru Ohta ◽  
Marc T. Facciotti ◽  
Robert M. Glaeser ◽  
...  
Keyword(s):  
Protein Dynamics ◽  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Photon Echo ◽  
Transient Absorption Spectroscopy

scholarly journals Ab Initio Simulation of Attosecond Transient Absorption Spectroscopy in Two-Dimensional Materials

2018 ◽  
Vol 8 (10) ◽  
pp. 1777 ◽  
Author(s):  
Shunsuke Sato ◽  
Hannes Hübener ◽  
Umberto De Giovannini ◽  
Angel Rubio
Keyword(s):  
Absorption Spectroscopy ◽  
Density Functional ◽  
Transient Absorption ◽  
Hexagonal Boron Nitride ◽  
Laser Pulses ◽  
Transient Absorption Spectroscopy ◽  
Band Model ◽  
Two Dimensional ◽  
Energy Bands ◽  
Two Dimensional Materials

We extend the first-principles analysis of attosecond transient absorption spectroscopy to two-dimensional materials. As an example of two-dimensional materials, we apply the analysis to monolayer hexagonal boron nitride (h-BN) and compute its transient optical properties under intense few-cycle infrared laser pulses. Nonadiabatic features are observed in the computed transient absorption spectra. To elucidate the microscopic origin of these features, we analyze the electronic structure of h-BN with density functional theory and investigate the dynamics of specific energy bands with a simple two-band model. Finally, we find that laser-induced intraband transitions play a significant role in the transient absorption even for the two-dimensional material and that the nonadiabatic features are induced by the dynamical Franz–Keldysh effect with an anomalous band dispersion.

Sign in / Sign up

Export Citation Format

Share Document