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Using wave singularities known as bound states in continuum, we report an integrated device that simultaneously generates and directs coherent beams carrying orbital angular momentum.

We propose a passive plasmonic nanostructures operating at an exceptional point (EP), which get enhanced sensitivity with small external perturbation. EP plasmonic sensor will pave the way to highly sensitive plasmonic devices.

We propose a passive plasmonic nanostructures sensor operated at an exceptional point (EP), that fundamentally shift more than conventional resonances and will pave the way to highly sensitive plasmonic devices.

Using full wave simulations and a transmission matrix approach, we design and then realize random metasurface lenses with anisotropic nanorods, and show that we can obtain a diffraction limited focal spot for all polarizations.

We demonstrated theoretically and experimentally a Bound State in the Continuum Surface Emitting Laser that operates at room temperature and it can steer the beam with an angle depending on the topology of structure.

We reported continuous-wave 528mW at 532nm from a compact visible-laser module. The green light was achieved from single-pass second harmonic generation with a periodically poled MgO-doped lithium niobate planar waveguide. For frequency-doubling, a distributed Bragg reflector (DBR) tapered laser diode having a single-frequency spectrum and watt-level power was used as a pump source. The highest conversion efficiency of 18.7% and power stability of 5% for a 1 hour period were attained from a compact laser module.