Irish physicists researching photonics have made a new discovery that will profoundly impact our understanding of the fundamental nature of light and possibly transform the future of communications.
The discovery by Prof Paul Eastham from Trinity College Dublin’s School of Physics and Prof John Donegan from the Science Foundation Ireland-backed CRANN research centre could have a major impact in terms of fibre-optic communications.
One of the measurable characteristics of light is known as angular momentum.
Up until now, in all forms of light, the angular momentum was thought to be multiples of Planck’s constant – the physical constant that sets the scale of quantum effects.
But the professors were able to discover a form of light where the angular momentum could be a fraction rather than a multiple.
‘What I think is so exciting about this result is that even this fundamental property of light, that physicists have always thought was fixed, can be changed’
– PROF PAUL EASTHAM, TCD
Their findings were published in the online journal Science Advances.
Donegan said that his research focuses on the study of light at nanometre scale.
“A beam of light is characterised by its colour or wavelength and a less familiar quantity known as angular momentum. Angular momentum measures how much something is rotating.
‘Our discovery will have real impacts for the study of light waves in areas such as secure optical communications’
– PROF JOHN DONEGAN, CRANN
“For a beam of light, although travelling in a straight line, it can also be rotating around its own axis. So, when light from the mirror hits your eye in the morning, every photon twists your eye a little, one way or another.
“Our discovery will have real impacts for the study of light waves in areas such as secure optical communications.”
The Latest on: Fibre-optic communications
via Google News
The Latest on: Fibre-optic communications
Kazakhstan to test 5G in pilot mode this year - Abayev
on February 19, 2019 at 11:30 pm
Construction of fibre optic links in 1,250 villages inhabited by 2.5 million Kazakhstanis began in 2018," Minister Abayev said at the session of the board of the Ministry of Information and Communicat... […]
Digi Spain launches fibre offer in Almeria
on February 19, 2019 at 5:28 am
Spanish MVNO Digi has extended the availability of its fibre-optic offer to the province of Almeria in Andalucia just a few weeks after launching it in Castellon and Guadalajara. The subsidiary of Rom... […]
The Daily Telegraph editorial: Federal government communications system lacks basic security
on February 19, 2019 at 5:19 am
The Daily Telegraph is able to reveal that an unsecured pit on a main road of Canberra is a potential access point to the 840km of “dark fibre” optic cable. This cable provides a secure communication... […]
Government cyber security at risk of being breached by simple $150 device
on February 19, 2019 at 4:19 am
The Intra-government Communications Network (ICON) connects more than 85 government agencies via 840km of “dark fibre” optic cable. There are 1766 access pits into the network dotted on roadsides and ... […]
Fibre optic project: Special Branch Sindh limping on Rs50 million crutch
on February 18, 2019 at 4:00 pm
Initiated by the former IG AD Khawaja in 2018, the fibre optic project was meant for secure data communications of the Special Branch network across the province. It was felt that the previous modes o... […]
Telecoms watchdog says Swisscom overcharged rivals
on February 12, 2019 at 12:59 am
ZURICH (Reuters) - Switzerland’s Federal Communications Commission (ComCom ... made the move after calculating prices for the first time on the basis of modern fibre-optic technology rather than conve... […]
Digicel says new fibre optic cable system will change the way St. Lucians, work, play, learn and live
on February 10, 2019 at 11:40 am
(PRESS RELEASE) — Digicel, your total communications and entertainment provider in the Caribbean, is today pledging to the government and every business in Saint Lucia: the new fibre optic cable syste... […]
Shaw completes fibre network enhancements with Fujitsu
on February 8, 2019 at 2:44 am
Canadian cableco Shaw Communications has completed a fibre-optic transport network upgrade involving deployment of the Fujitsu 1FINITY platform and Virtuora Network Control software, enabling signific... […]
At 10.4% CAGR, Distributed Acoustic Sensing Market Size will reach 720 Million USD by 2025
on February 7, 2019 at 1:16 am
Distributed Acoustic Sensing (DAS) is an acoustic and seismic sensing capability that uses simple fibre optic communications cables as the sensor. The system works by converting a single optical fibre ... […]
'Dark' Fibre Optic Cables Can Measure Earthquakes
on February 5, 2019 at 2:26 pm
Some millions of miles of fibre optic cable lie unused beneath the ground ... 13,000 miles of telecommunications fibre in the western United States that is used for testing new communication equipment ... […]
via Bing News