Results 51 to 60 of about 228,666 (350)

Transition Dipole Moments of n = 1, 2, and 3 Perovskite Quantum Wells from the Optical Stark Effect and Many-Body Perturbation Theory.

Journal of Physical Chemistry Letters, 2020
Metal halide perovskite quantum wells (PQWs) are quantum and dielectrically confined materials exhibiting strongly bound excitons. The exciton transition dipole moment dictates absorption strength and influences interwell coupling in dipole-mediated ...
Andrew H. Proppe, G. Walters, Abdullah Y. Alsalloum, Ayan A. Zhumekenov, E. Mosconi, S. Kelley, F. De Angelis, L. Adamska, P. Umari, O. Bakr, E. Sargent   +10 more
semanticscholar   +1 more source

Adiabatic population transfer between electronic states of LiH molecule in two picosecond laser pulses

AIP Advances, 2018
The population transfer of stimulated Raman adiabatic passage (STIRAP) is investigated using a time-dependent quantum wave packet method. The population is transferred from an initial state to a target state through the interaction of the external laser ...
Ying-Yu Niu, Rong Wang
doaj   +1 more source

Ab initio calculations to support accurate modelling of the rovibronic spectroscopy calculations of vanadium monoxide (VO) [PDF]

, 2016
Accurate knowledge of the rovibronic near-infrared and visible spectra of vanadium monoxide (VO) is very important for studies of cool stellar and hot planetary atmospheres. Here, the required ab initio dipole moment and spin-orbit coupling curves for VO
McKemmish, Laura K., Tennyson, Jonathan, Yurchenko, Sergei N.   +2 more
core   +3 more sources

General calculation of $4f-5d$ transition rates for rare-earth ions using many-body perturbation theory

, 2005
The $4f-5d$ transition rates for rare-earth ions in crystals can be calculated with an effective transition operator acting between model $4f^N$ and $4f^{N-1}5d$ states calculated with effective Hamiltonian, such as semi-empirical crystal Hamiltonian ...
Duan, Chang-Kui, Reid, Michael F.
core   +1 more source

S-type Stars: Line List for the A2Π–X2Σ+ Band System of LaO

The Astrophysical Journal, 2023
LaO bands are found in the spectra of cool S-type stars. The bands of the A ^2 Π–X ^2 Σ ^+ transition with $v^{\prime} \leqslant 3$ and v ″ ≤ 4 are rotationally analyzed, providing spectroscopic constants for the A ^2 Π state.
P. F. Bernath, R. Dodangodage, J. Liévin   +2 more
doaj   +1 more source

Magnetophotoselection in the Investigation of Excitonically Coupled Chromophores: The Case of the Water-Soluble Chlorophyll Protein

Molecules, 2022
A magnetophotoselection (MPS) investigation of the photoexcited triplet state of chlorophyll a both in a frozen organic solvent and in a protein environment, provided by the water-soluble chlorophyll protein (WSCP) of Lepidium virginicum, is reported ...
Susanna Ciuti, Alessandro Agostini, Antonio Barbon, Marco Bortolus, Harald Paulsen, Marilena Di Valentin, Donatella Carbonera   +6 more
doaj   +1 more source

General Magnetic Transition Dipole Moments for Electron Paramagnetic Resonance [PDF]

Physical Review Letters, 2015
We present general expressions for the magnetic transition rates in beam Electron Paramagnetic Resonance (EPR) experiments of anisotropic spin systems in the solid state. The expressions apply to general spin centers and arbitrary excitation geometry (Voigt, Faraday, and intermediate).
Nehrkorn, J., Schnegg, A., Holldack, K., Stoll, S.   +3 more
openaire   +4 more sources

Interaction induced ferro-electricity in the rotational states of polar molecules

, 2010
We show that a ferro-electric quantum phase transition can be driven by the dipolar interaction of polar molecules in the presence a micro-wave field.
A. L. Fetter, C. J. Pethick, Chien-Hung Lin, Daw-Wei Wang, G. Pupillo, Hao Lee, Yi-Ting Hsu   +6 more
core   +1 more source

The effects of wetting layer on electronic and optical properties of intersubband P-to-S transitions in strained dome-shaped InAs/GaAs quantum dots

AIP Advances, 2014
The authors report on the impact of wetting layer thickness and quantum dot size on the electronic and optical properties of dome-shaped InAs/GaAs quantum dots (QDs) with strained potential.
Mohammadreza Shahzadeh, Mohammad Sabaeian   +1 more
doaj   +1 more source

Structure and dielectric properties of polar fluids with extended dipoles: results from numerical simulations

, 2003
The strengths and short-comings of the point-dipole model for polar fluids of spherical molecules are illustrated by considering the physically more relevant case of extended dipoles formed by two opposite charges $\pm q$ separated by a distance $d ...
Frenkel D, Fröhlich H, Gray CG, Hansen J-P, Jackson JD, Lindahl E   +5 more
core   +1 more source