Three-dimensional imaging with optical frequency combs

Holography is a powerful technique of photography of a light field without a lens for 3D imaging and display. Now, scientists at the Max-Planck Institute of Quantum Optics are moving holography forward by implementing it ...

3D laser nanoprinters become compact

Lasers in conventional laser printers for paper printouts are very small. 3D laser printers for 3-dimensional microstructures and nanostructures, by contrast, have required big and expensive laser systems so far. Researchers ...

Nanofabrication using thermomechanical nanomolding

Advances in nanotechnology require the development of nanofabrication methods for a variety of available materials, elements, and parameters. Existing methods do not possess specific characteristics and general methods of ...

Detector advance could lead to cheaper, easier medical scans

Researchers in the U.S. and Japan have demonstrated the first experimental cross-sectional medical image that doesn't require tomography, a mathematical process used to reconstruct images in CT and PET scans . The work, published ...

A novel way to generate visible light

Visible light is extremely important in nature. Seen by the human eye, it is the most intense light emitted by the sun to reach the earth's surface and is an essential element for fundamental biological processes underlying ...

A traffic light for light-on-a-chip

Integrated photonics allow us to build compact, portable, low-power chip-scale optical systems used in commercial products, revolutionizing today's optical datacenters and communications. But integrating on-chip optical gain ...

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