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Search results for supercontinuum

Optics & Photonics Feb 4, 2019

Optical coherence tomography (OCT) – longer wavelengths can improve imaging depths

Optical coherence tomography (OCT) is a light-based imaging technique currently used in clinical diagnostics to examine organs in vivo. The technique uses interferometry; in which light reflected from an examined object combines ...

Optics & Photonics Nov 20, 2018

When AI and optoelectronics meet: Researchers take control of light properties

Using machine-learning and an integrated photonic chip, researchers from INRS (Canada) and the University of Sussex (UK) can now customize the properties of broadband light sources. Also called "supercontinuum", these sources ...

Optics & Photonics Oct 10, 2018

Innovative sensing technique could improve greenhouse gas analysis

An international team of researchers has used an unconventional imaging technique known as ghost imaging to make spectroscopic measurements of a gas molecule. The new approach by scientists at Tampere University of Technology ...

Nanophysics Mar 16, 2018

Imaging technique pulls plasmon data together

Rice University scientists have developed a novel technique to view a field of plasmonic nanoparticles simultaneously to learn how their differences change their reactivity.

Optics & Photonics Mar 15, 2018

Compact fiber optic sensor offers sensitive analysis in narrow spaces

Researchers have developed a new flexible sensor with high sensitivity that is designed to perform variety of chemical and biological analyses in very small spaces. The sensor's small size means that it could potentially ...

Optics & Photonics Mar 15, 2018

'Frequency combs' ID chemicals within the mid-infrared spectral region

Chemical compounds all carry distinctive absorption "fingerprints" within the mid-infrared spectral region of 2 to 12 microns. This offers an opportunity to measure and study chemicals at extremely sensitive levels but researchers ...

Optics & Photonics Dec 28, 2017

Highly efficient, high-power short-pulse lasers based on Tm3+ doped materials

Highly efficient high power short pulse lasers at the wavelength range of 2 µm based on Tm3+ doped materials have a variety of applications such as material processing, LiDAR, mid-infrared OPOs for wavelengths up to 12 μm, ...

Optics & Photonics Dec 15, 2017

A shoe-box-sized chemical detector

A chemical sensor prototype developed at the University of Michigan will be able to detect "single-fingerprint quantities" of substances from a distance of more than 100 feet away, and its developers are working to shrink ...

Optics & Photonics Oct 30, 2017

Liquids take a shine to terahertz radiation

In a significant breakthrough, scientists at the Tata Institute of Fundamental Research (TIFR), Mumbai, have devised a high-power radiation source in the terahertz (THz) region of the electromagnetic spectrum. This study, ...

Optics & Photonics Sep 29, 2017

World-first optical fiber laser promises to revolutionise detection of gases for industry

An international research group, led by Macquarie University scientists, has developed a world-first optical fiber technology which can help detect a wide range of gases with unprecedented sensitivity, with potential applications ...

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