When light loses symmetry, it can hold particles

Optical tweezers use light to immobilize microscopic particles as small as a single atom in 3D space. The basic principle behind optical tweezers is the momentum transfer between light and the object being held. Analogous ...

Integrated photonics meets electron microscopy

Scientists in Switzerland and Germany have achieved efficient electron-beam modulation using integrated photonics—circuits that guide light on a chip. The experiments could lead to entirely new quantum measurement schemes ...

Nondestructive testing of optical fiber diameters

The increased use of optical fiber has seen a greater focus on the precise control and measurement of its diameter. That is due to the diameter being vital for a wide range of fields, from high-speed optical communication ...

An adaptive microscope for the imaging of biological surfaces

Modern biology relies on our ability to observe living cells using microscopes. The latest advances in optical microscopy allow cellular and sub-cellular imaging within model organisms such as the vinegar fly, zebrafish and ...

Microscopic metavehicles powered by nothing but light

Researchers from Chalmers University of Technology, Sweden, have succeeded in creating tiny vehicles powered by nothing but light. By layering an optical metasurface onto a microscopic particle, and then using a light source ...

Novel microscopy method provides look into future of cell biology

What if a microscope allowed us to explore the 3D microcosm of blood vessels, nerves, and cancer cells instantaneously in virtual reality? What if it could provide views from multiple directions in real time without physically ...

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