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
- Phase3 Telecoms Gets Industry Recognitionon September 18, 2019 at 4:31 pm
Phase3 Telecom, West Africa’s foremost independent fibre optic infrastructure ... customer experience that ride on invaluable partnerships, investment in communications technology, as well as a secure ...
- Prysmian showcases latest products for submarine telecom industryon September 17, 2019 at 6:12 am
“After the merger with General Cable, the group returns to the strategic submarine telecom business with the group’s dedicated division NSW, which has an enviable expertise in developing and producing ...
- Chinese operators face US licence oppositionon September 17, 2019 at 4:25 am
fibre optic cables, cellular networks and satellites” and could give China the ability to target communications of “Americans or their businesses, and the US government”. They added the companies ...
- Phase3 commences network technology upgrade across enterprise segmenton September 17, 2019 at 2:33 am
West Africa’s largest independent fibre optic infrastructure and telecommunications services ... it has commenced a strategic network technology upgrade to enhance communications for seamless regional ...
- US senators call for approvals review of Chinese telecoms operatorson September 17, 2019 at 12:42 am
“These state-owned companies continue to have access to our telephone lines, fibre optic cables, cellular networks and satellites in ways that could give it (China) the ability to target the content ...
- Uppercut taps Riedel for smaller OB truckson September 16, 2019 at 11:24 pm
connected with a single fibre-optic cable. The larger of the two OB trucks is a 12-ton vehicle that was launched in April of 2018. It has the capacity to handle productions with up to eight cameras.
- Fibre optic cable work over half completed in Hay Riveron September 16, 2019 at 11:40 am
A project to dramatically upgrade the speed and reliability of the Internet communications infrastructure in Hay ... of the so-called Fibre to the Home project, which is seeing fibre optic cables ...
- Senators want FCC to review Chinese telecom approvals to operate in U.S.on September 16, 2019 at 11:29 am
fibre optic cables, cellular networks and satellites in ways that could give it (China) the ability to target the content of communications of Americans or their businesses and the U.S. government ...
- Our top broadband packageson September 16, 2019 at 10:23 am
Cable broadband is available from fibre-optic broadband provider Virgin Media ... Mobile broadband is perhaps best suited to people looking for greater flexibility in their communications and who need ...
- Mass surveillance by South African government is ruled unlawfulon September 16, 2019 at 6:19 am
Much of the legal challenge centred on RICA — the Regulation of Interception of Communications and Provision ... including data sent over undersea fibre optic cables that connect South Africa ...
via Bing News