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Light-induced ring pattern in a dye-doped nematic liquid crystal
(MDPI, 2021)
The use of dye-doped liquid crystals allows the amplification of the coupling of light and liquid crystals. Light can induce the self-organization of the molecular order. The appearance of ring patterns has been observed, ...
Three-dimensional trapping of light with light in semiconductor planar microcavities
(American Physical Society, 2019-05)
When light is confined in all three directions and in dimensions of the order of the light wavelength, discretization of the photon spectra and distinctive phenomena occur, the Purcell effect and the inhibition of emission ...
Picosecond magneto-optical phenomena in turbid media: Toward magneto-optical characterization of highly scattering biological samples
(Optical Soc AmerWashington, 1997)
Dissipative structures induced by photoisomerization in a dye-doped nematic liquid crystal layer
(2018)
Order-disorder phase transitions driven by temperature or light in soft matter materials exhibit complex dissipative structures. Here, we investigate the spatio-temporal phenomena induced by light in a dye-doped nematic ...
Light beam induced finger instability in a photosensitive liquid crystal cell
(Amer Physical Soc., 2021)
Interfaces limiting two phases in driven systems may exhibit rich dynamical behaviors. Optically induced phase transitions are of particular interest for the study of interfacial phenomena. Dye-doped liquid crystals offer ...
Photo-Induced Dipole Relaxation Current in Natural Amethyst
(Universidade Federal de São Carlos (UFSCar), Dept Engenharia Materials, 2012-05-01)
Thermally stimulated depolarization current (TSDC) measurements were carried out for SiO2 in the amethyst form, aiming to investigate the relationship of observed current with relaxation phenomena related to quartz impurities. ...
Photo-Induced Dipole Relaxation Current in Natural Amethyst
(Universidade Federal de São Carlos (UFSCar), Dept Engenharia Materials, 2012-05-01)
Thermally stimulated depolarization current (TSDC) measurements were carried out for SiO2 in the amethyst form, aiming to investigate the relationship of observed current with relaxation phenomena related to quartz impurities. ...
Dissipative structures induced by photoisomerization in a dye-doped nematic liquid crystal layer
(Royal Society Publishing, 2018)
Order–disorder phase transitions driven by temperature or light in soft matter materials exhibit complex dissipative structures. Here, we investigate the spatio-temporal phenomena induced by light in a dye-doped nematic ...
Front propagation steered by a high-wavenumber modulation: Theory and experiments
(American Institute of Physics, 2020)
Homogeneously driven dynamical systems exhibit multistability. Depending on the initial conditions, fronts present a rich dynamical behavior
between equilibria. Qualitatively, this phenomenology is persistent under spatially ...
Photo-induced birefringence and surface ripples structures in As-S-Ag chalcogenide thin-films
(2019-09-01)
Photo-induced phenomena are investigated in new metastable Agx(As20S80)100-x chalcogenide thin-films prepared by the co-evaporation technique. Under irradiation using an Ar laser at 488 nm, periodic ripples structures ...