Nonlinear beam cleaning in spatiotemporally mode-locked lasers

In the last few decades, only temporal modes have been considered for mode-locked fiber lasers using single-mode fibers. Mode-locked single-mode fiber lasers offer advantages due to their high-gain doping, intrinsically single-spatial ...

Researchers develop nonlinearity-induced topological insulator

Researchers from the University of Rostock have developed a novel type of nonlinear photonic circuitry in which intense light beams can define their own path and, in doing so, render themselves impervious to external perturbations. ...

Music goes terahertz

An international research team from Germany, Italy, and the U.K. has developed a key photonics component for the terahertz spectral range. By mixing electronic resonances in semiconductor nanostructures with the photon field ...

Microscopy images in a flash

Oak Ridge National Laboratory researchers have built a novel microscope that provides a "chemical lens" for viewing biological systems including cell membranes and biofilms. The tool could advance the understanding of complex ...

An ultrafast microscope for the quantum world

The operation of components for future computers can now be filmed in HD quality, so to speak. Manish Garg and Klaus Kern, researchers at the Max Planck Institute for Solid State Research in Stuttgart, have developed a microscope ...

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