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We reported an efficient ytterbium-doped vectorial fiber laser modulated by a low loss q-plate, which can manipulate the intra-cavity polarization evolution in a flexible and compact way. The vectorial fiber laser can deliver watt-level radially and azimuthally polarized laser around $1~\mu \text{m}$ from the same laser cavity with slope efficiency greater than 70.6%, and the polarization extinction...
Nanocavities inscribed in a gold thin film is optimized and arranged to form a metasurface. We demonstrate both numerically and experimentally that surface plasmon vortex carrying orbital angular momentum can be generated under linearly-polarized optical excitation.
Surface plasmon vortices with arbitrary pattern are synthesized via geometrical designs. The resulting vortex intensity patterns are experimentally measured using a near-field scanning optical microscope and are in good agreements as compared to numerical results.
V-shaped air slits inscribed in a metallic thin film is used to achieve cross-polarized anomalous refraction with high efficiency. The experimental refraction angles are in excellent agreements with theoretical values.
Vectorial optical arbitrary waveform generation is experimentally demonstrated through polarization line-by-line pulse shaping. Temporal Talbot effect is extended into the vectorial regime, and the polarization shaped optical waveforms extending a 50-ps time window are synthesized.
Spectral line-by-line pulse shaping is extended to full-vectorial capabilities for the first time to our best knowledge. We experimentally demonstrate polarization shaped optical waveforms extending a 50-ps time window.
We numerically demonstrate a designed plasmonic nanocluster can function as nanoscopic polarization analyzer to a quantum emitter. Up to ten polarization states of such source can be distinguished.
We demonstrate numerically that the shape (“c” and triangle) and the orientation of surface plasmon intensity distribution can be arbitrarily controlled in a plasmonic spiral through simple geometrical design.
Numerical simulations show up to five localized surface plasmons (LSP) states can be selectively excited using simple source polarization control in gold nano-spheres. The extinctions among different selective states are quantitatively analyzed.
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