All‐Dielectric Metasurface‐Enabled Multiple Vortex Emissions
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202109255
Abstract: On‐chip integrated micro‐ and nanoscale vortex lasers are key elements for addressing the exponentially growing demand for information capacity. Although tunable vortex microlasers have been reported, each laser pulse still possesses one particular topological charge… read more here.
Keywords: multiple vortex; vortex; dielectric metasurface; metasurface enabled ... See more keywords
Observation of phonon trapping in the continuum with topological charges
Sign Up to like & getrecommendations! Published in 2020 at "Nature Communications"
DOI: 10.1038/s41467-020-19091-3
Abstract: Phonon trapping has an immense impact in many areas of science and technology, from the antennas of interferometric gravitational wave detectors to chip-scale quantum micro- and nano-mechanical oscillators. It usually relies on the mechanical suspension—an… read more here.
Keywords: observation phonon; continuum topological; topological charges; trapping continuum ... See more keywords
Superimposition of topological charges between vortex beams and singular points of photonic crystal slabs
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Physics D: Applied Physics"
DOI: 10.1088/1361-6463/acca2e
Abstract: The bound state in the continuum (BIC) is a singular point of polarization in the momentum space of a periodic structure. It has been demonstrated that vortex beams can be generated by utilizing the polarization… read more here.
Keywords: photonic crystal; superimposition topological; vortex beams; topological charges ... See more keywords
Controllable plasmonic vortex sequence with on-chip discrete-slit-based metalens
Sign Up to like & getrecommendations! Published in 2023 at "New Journal of Physics"
DOI: 10.1088/1367-2630/acce5c
Abstract: Like free-space vortex beams, surface plasmon polaritons can carry orbital angular momentum to form plasmonic vortices (PVs). Recently, research interest in PV fundamentals and applications has increased. However, generating and manipulating the topological charges of… read more here.
Keywords: sequence; controllable plasmonic; slit; topological charges ... See more keywords
Shared aperture metasurface antenna for electromagnetic vortices generation with different topological charges* * Project supported by the National Natural Science foundation of China (Grant No. 61971347).
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Physics B"
DOI: 10.1088/1674-1056/abe37c
Abstract: Vortex beams carrying orbital angular momentum (OAM) have aroused great interest of both scientific and engineering communities. Encouragingly, generating OAM with different topological charges in a shared aperture is regarded as a potential route to… read more here.
Keywords: shared aperture; different topological; metasurface; topological charges ... See more keywords
Topological Charges of Periodically Kicked Molecules.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.130.103202
Abstract: We show that the simplest of existing molecules-closed-shell diatomics not interacting with one another-host topological charges when driven by periodic far-off-resonant laser pulses. A periodically kicked molecular rotor can be mapped onto a "crystalline" lattice… read more here.
Keywords: kicked molecules; periodically kicked; laser; physics ... See more keywords
Circularly Polarized Antenna Array with Decoupled Quad Vortex Beams
Sign Up to like & getrecommendations! Published in 2022 at "Nanomaterials"
DOI: 10.3390/nano12173083
Abstract: Achieving multiple vortex beams with different modes in a planar microstrip array is pivotal, yet still extremely challenging. Here, a hybrid method combining both Pancharatnam−Berry (PB) phase that is induced by the rotation phase and… read more here.
Keywords: quad vortex; topological charges; array; vortex beams ... See more keywords