OSA (The Optical Society)

United States of America

Phone: +1.202.416.1435

Web: http://www.osa.org

OSA (The Optical Society) articles

Displaying 1 - 15 of 15

Optical fibres offer alternative way to 3D print microstructures

Optical fibres offer alternative way to 3D print microstructures
For the first time, researchers have shown that an optical fibre as thin as a human hair can be used to create microscopic structures with laser-based 3D printing. The innovative approach might one day be used with an endoscope to fabricate tiny biocompatible structures directly into tissue inside the body. This capability could enable new ways to repair tissue damage.
18th January 2018

Seeing the forest with the latest LiDAR system

Seeing the forest with the latest LiDAR system
Shortly after lasers were first developed in the 1960s, LiDAR—whose name originated as a combination of 'light' and 'radar'—capitalised on the newly unique precision they offered for measuring both time and distance. LiDAR quickly became the standard method for (3D) land surveys and is now used in a multitude of sensing applications, such as self-driving cars.
28th June 2017

Switch transmits data at record-low temperatures

Switch transmits data at record-low temperatures
A silicon optical switch newly developed at Sandia National Laboratories is the first to transmit up to 10 gigabits per second of data at temperatures just a few degrees above absolute zero. The device could enable data transmission for next-generation superconducting computers that store and process data at cryogenic temperatures. Although these supercomputers are still experimental, they could potentially offer computing speeds ten times faster than today's computers while significantly decreasing power usage.
16th March 2017

Laser-generated bubbles create 3D images in liquid

Laser-generated bubbles create 3D images in liquid
Researchers have developed a completely new type of display that creates 3D images by using a laser to form tiny bubbles inside a liquid "screen." Instead of rendering a 3D scene on a flat surface, the display itself is three-dimensional, a property known as volumetric. This allows viewers to see a 3D image in the columnar display from all angles without any 3D glasses or headsets.
24th February 2017

Ultra-small nanocavity advances quantum-based data encryption

Ultra-small nanocavity advances quantum-based data encryption
Researchers have developed a type of light-enhancing optical cavity that is only 200 nm tall and 100 nm across. Their new nanoscale system represents a step toward brighter single-photon sources, which could help propel quantum-based encryption and a truly secure and future-proofed network. Quantum encryption techniques, which are seen as likely to be central to future data encryption methods, use individual photons as an extremely secure way to encode data.
22nd December 2016

Fluorescence microscopy improves image resolution

Fluorescence microscopy improves image resolution
Researchers have developed a fluorescence microscopy approach that significantly improves image resolution by acquiring three views of a sample at the same time. Their new method is particularly useful for watching the dynamics of biological processes, which can provide insights into how healthy cells work and what goes wrong when diseases occur.
11th August 2016

Mid-infrared detector operates at room temperature

A paper published in the journal Optics Express, from The Optical Society (OSA), describes a type of portable, field-friendly, mid-infrared detector that operates at room temperature. Room-temperature operation, notes Andreas Harrer of the TU-Wien Center for Micro- and Nanostructures, Austria and the first author of the paper, "is essential for detectors to be energy-efficient enough for portable and handheld applications.
27th July 2016

Optimising the detection of optical communication signals

Optimising the detection of optical communication signals
Today's high-speed wired communication networks use lasers to carry information through optical fibers, but wireless networks are currently based on radio frequencies or microwaves. In an advance that could one day make light-based wireless communications ubiquitous, researchers from Facebook Inc.'s Connectivity Lab have demonstrated a conceptually new approach for detecting optical communication signals traveling through the air.
19th July 2016

Improving the angular resolution of telescopes

The angular resolution of a telescope is the smallest angle between two objects that still can be resolved as separate things; in a telescope with high angular resolution, those objects can be very close together and yet still appear distinct. In a paper published in the journal Optics Letters, from The Optical Society (OSA), a research team now proposes a way around the diffraction limit of telescopes—one that could potentially enable even moderately sized telescopes to obtain images with very high angular resolution.
6th July 2016

Camera can image at speeds 100 times faster than today's cameras

  Researchers have improved upon a camera technology that can image at speeds about 100 times faster than today's commercial cameras while also capturing more image frames. The technology opens a host of new possibilities for studying extremely fast processes such as neurons firing, chemical reactions, fuel burning or chemicals exploding.
1st July 2016

Imaging method reveals nanoscale details about DNA

Imaging method reveals nanoscale details about DNA
Researchers have developed a enhanced DNA imaging technique that can probe the structure of individual DNA strands at the nanoscale. Since DNA is at the root of many disease processes, the technique could help scientists gain important insights into what goes wrong when DNA becomes damaged or when other cellular processes affect gene expression. The imaging method builds on a technique called single-molecule microscopy by adding information about the orientation and movement of fluorescent dyes attached to the DNA strand.
17th June 2016

Flat lens creates opportunities in electronics

Researchers have created an optical lens that is flat, rather than curved like traditional glass lenses. The unique optical properties available from the flat lens could help reduce the size of computer hard drives and create exceptionally small microscopes, among other applications. "We've shown a new way to control light," said Ruben Maas, who carried out the research in Albert Polman's research group at the Center for Nanophotonics, FOM Institute AMOLF, The Netherlands.
8th June 2016

3D laser printing demonstrates high performance

Researchers have demonstrated 3D printing of micron-scale optics with unprecedented performance and reproducibility. Their approach can be used to create almost any type of integrated optical element on a micron or smaller scale, which could help miniaturise instruments and devices used in applications from sensing to telecommunications.
20th April 2016

Optical trapping system used for high-power laser light

Optical trapping system used for high-power laser light
Researchers have demonstrated, for the first time, that laser light can be used to manipulate a glass optical fiber tapered to a sharp point smaller than a speck of dust, in the middle of an optical fiber with a hollow core. Optical forces cause the sharp point, or "nanospike," to self-align at the center of the hollow core, trapping it more and more strongly at the core center as the laser power increases.
9th March 2016

Photoacoustic mammoscope hopes to revolutionize breast cancer detection

Researchers at the University of Twente in the Netherlands have developed a photoacoustic mammoscope, a prototype imaging device, which aims to be a valuable tool in detecting breast cancer at its earliest stages. With breast cancer being the most common form of cancer deaths amongst women, this new device aims to detect cancer when it is at its most treatable stage.
24th October 2013

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