Tuning the plasmonic response with an external magnetic field is extremely promising to achieve active magnetoplasmonic devices, such as next generation refractometric sensors or tunable optical components. Noble metal nanostructures represent ideal platform for studying and modeling effects through interaction of free electrons fields, even though their relatively low at intensities commonly a...

Employing ab initio electronic structure calculations, we predict that trigonal tellurium consisting of weakly interacting helical chains undergoes a trivial insulator to strong topological insulator (metal) transition under shear (hydrostatic or uniaxial) strain. The transition is demonstrated by examining the strain evolution of the band structure, the topological Z2 invariant and the concomi...

A general use of the adaptive optics require an artiicial guide star created by focusing a laser beam tuned to the sodium D 2 line. We propose here a system to monitor the column density of the mesospheric sodium layer which is based on the sodium magneto-optical lter (MOF) already widely used in solar observations. The principal characteristics of this system are high transmission and high spe...

Two-dimensional transition metal dichalcogenide semiconductors are intriguing hosts for quantum light sources due to their unique optoelectronic properties. Here, we report that strain gradients, either unintentionally induced or generated by substrate patterning, result in spatially and spectrally isolated quantum emitters in mono- and bilayer WSe2. By correlating localized excitons with local...

One of the most fundamental challenges to the creation of on-chip, large-scale integrated optics has been to provide signal isolation and to suppress parasitic reflections between devices. In this context, there is a very strong interest in the miniaturization of non-reciprocal optical devices and their on-chip integration1). Due to the weakness of magneto-optical effects, conventional devices ...

in this paper, the stability of a functionally graded magneto-electro-elastic (fg-mee) micro-beam under actuation of electrostatic pressure is studied. for this purpose euler-bernoulli beam theory and constitutive relations for magneto-electro-elastic (mee) materials have been used. we have supposed that material properties vary exponentially along the thickness direction of the micro-beam. gov...