Results 71 to 80 of about 1,084,194 (176)

Exciton-polaritons in transition-metal dichalcogenides and their direct excitation via energy transfer

open access: yes, 2015
Excitons, composite electron-hole quasiparticles, are known to play an important role in optoelectronic phenomena in many semiconducting materials.
Gartstein, Yuri N.   +2 more
core   +1 more source

Dispersive non-Hermitian optical heterostructures

open access: yesPhotonics Research, 2018
The effect of material dispersion on the optical properties of one-dimensional non-Hermitian scattering systems is investigated in detail. In particular, multilayer heterostructures with gain and loss (parity-time symmetric or not) are examined by taking into account the dispersion of each layer.
Shramkova, O   +3 more
openaire   +4 more sources

Dispersion characteristics of segmented optical fibers

open access: yesApplied Optics, 2005
A direct scalar two-dimensional routine based on the method of lines is implemented to analyze the dispersion characteristics of segmented fibers. In this kind of structure, dispersion control in a simple profile is achieved by variations in the filling ratio of the coaxiallike structure.
Schneider, Vitor M, Hattori, Haroldo
openaire   +4 more sources

Metasurfaces with Freely Varying Height in the Visible Using Grayscale Lithography. [PDF]

open access: yesNano Lett
Shanks DN   +4 more
europepmc   +1 more source

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