Doughnut-shaped laser used to create an optical fibre out of air

Shooting a brief but powerful laser beam shaped like a doughnut through the air created a light pulse that acts like an optical fibre, carrying data 45 metres

Tractor' Laser Beam Has Potential to Control Path, Direction of Lightning

Focusing of doughnut laser beams by a high numerical-aperture objective in free space

Photonics, Free Full-Text

A hollow beam from a holey fiber

Pulses of darkness let digital data travel farther

Energies, Free Full-Text

60 nm Span Wavelength-Tunable Vortex Fiber Laser with Intracavity Plasmon Metasurfaces

Enhancement of the spectral broadening efficiency for circular polarization states in the high absorption regime for Gaussian and doughnut-shaped beams in fused silica

Nanoscale optical writing through upconversion resonance energy transfer

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Chong Jiazhen on LinkedIn: Doughnut-shaped laser used to create an optical fibre out of air

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