… ground and excited states is marked with arrows showing clearly the displacement upon
excitation… field replicates, but has opposite sense to the excited state polarization, so at all points …

… unique features of the photorefractive effect. The photorefractive effect is illustrated throughout
… displacements modulated the index through changes in the internal polarisation. A new …

… For two linearly polarized coherent plane waves with wavevectors k₁ and k₂ inside a …
an excited state that undergoes large lattice relaxation into a metastable state. The metastable …

… eg, the polarization dependent quantum efficiency of the excitation … Excitation from the ground
state with population density N0 … in an intermediate state, that rapidly decays into state with …

… polarization (ordinary and extraordinary) of the excitation … much smaller than the excited
state lifetime the refractive index … constant, a* is the excited state absorption cross section [2.58] …

… of π-conjugated bridge, and on the polarity ε r of the surrounding medium.8… polarization of
the ground state and to show the relationship between electronic distribution and ground-state …

… energy of transition from the ground state to the excited state, … The photorefractive effect
in nonlinear optical materials is … with electronic polarisation rather than orientational effects, …

We report the first observation of the photorefractive effect in a polymeric material, the electro-optic
polymer bisphenol-A-diglycidylether 4-nitro-1, 2-phenylenediamine made …

… polarization change through the pyroelectric effect. The photorefractive effect is a volume
effect… ion displacements between their excited state and their relaxed state (Frank Condon …

… To probe how the FOM varies as a function of the BOA which is related to the extend of
charge transfer or polarization in the ground state of the molecule, we analyzed the results of …