RT Journal Article
T1 Structure of the dielectric tensor in nematic liquid crystals with topological charge
A1 Martínez Matos, Óscar
A1 Vaveliuk, Pablo
A1 Moraes, Fernando Jorge Sampaio
A1 Fumeron, Sebastien
A1 Calvo Padilla, María Luisa
AB A q-plate is a stratified medium composed of a uniaxial nematic liquid crystal with an inhomogeneous orientation of the optical axis possessing a topological charge q, which looks promising as a switching device. This work reports an approach to diagonalizing the dielectric tensor in q-plates, giving a detailed study of nontrivial tensor coordinate transformations. The relationship between the diagonal dielectric tensor and the topological charge of the plate is established. From that, the dielectric tensor for a given q-plate can be explicitly calculated in a convenient frame, and hence the field propagation equations can be derived. These studies establish a theoretical basis that could further deepen the research on these particular structures for nonconventional manipulation of the light.
PB Optical Society of America
SN 1084-7529
YR 2010
FD 2010-06
LK https://hdl.handle.net/20.500.14352/44156
UL https://hdl.handle.net/20.500.14352/44156
LA eng
NO © 2010 Optical Society of America.P. V. and F. M. acknowledge financial support from CNPq (Brazilian federal grant agency). The partial financial support of the Spanish Ministry of Innovation and Science, under project TEC2008-04105is acknowledged.
NO CNPq (Brazilian federal grant agency)
NO Ministerio de Ciencia e Innovación (MICINN), España.
DS Docta Complutense
RD 9 abr 2025