Abstract: A topological laser system is described. The laser system comprises an array of optical elements arranged in an array and coupled between them such that the array is configured for supporting one or more topological modes. The plurality of optical elements comprises optical elements carrying gain material configured for emitting optical radiation in response to pumping energy. The laser system further comprises a pumping unit configured to provide pumping of a group of the optical elements of the array within at least a portion of the spatial region corresponding with said topological mode; and at least one output port optically coupled to one or more of the optical elements associated with said topological mode. The at least one output ports is configured for extracting a portion of light intensity from said laser system.

Abstract: A topological laser system is described. The laser system comprises an array of optical elements arranged in an array and coupled between them such that the array is configured for supporting one or more topological modes. The plurality of optical elements comprises optical elements carrying gain material configured for emitting optical radiation in response to pumping energy. The laser system further comprises a pumping unit configured to provide pumping of a group of the optical elements of the array within at least a portion of the spatial region corresponding with said topological mode; and at least one output port optically coupled to one or more of the optical elements associated with said topological mode. The at least one output ports is configured for extracting a portion of light intensity from said laser system.

Abstract: A system for manipulating a fluid medium is disclosed. The system comprises a plurality of particles suspended in the fluid medium, and a light source configured for irradiating the particles by light to induce nonlinear optical effects. The particles are constituted such that the nonlinear optical effects result in drag forces exerted by the particles on the fluid medium. The magnitude of the drag forces is sufficient to establish hydrodynamic flow of the fluid medium.

Abstract: Methods and systems for Airy waves and Airy wavepackets or Airy beam generation from an input beam or pulse. Airy wavefronts and Airy wavepackets can be generated using Airy beam generation through Fourier synthesis using phase masks or filters in the spatial domain; Airy beam generation using amplitude and phase filters in the spatial domain; and Airy pulse generation through Fourier synthesis using phase and/or amplitude filters in the temporal frequency domain. The Airy waves are highly asymmetric and as a result their energy is more tightly confined in one quadrant thus increasing the energy density in the main lobes. These wavepackets can be one, two, and three-dimensional waves. In addition they tend to self-heal themselves which is important in adverse environments.

Abstract: A system for manipulating a fluid medium is disclosed. The system comprises a plurality of particles suspended in the fluid medium, and a light source configured for irradiating the particles by light to induce nonlinear optical effects. The particles are constituted such that the nonlinear optical effects result in drag forces exerted by the particles on the fluid medium. The magnitude of the drag forces is sufficient to establish hydrodynamic flow of the fluid medium.