BC physicists transmit visible light through miniature cable

CHESTNUT HILL, Mass., Jan 8 Physicists at Boston College have beamed visible light through a cable hundreds of times smaller than a human hair, an achievement they anticipate will lead to advances in solar power and optical computing.

The discovery, details of which appear in the Jan. 8 issue of the journal Applied Physics Letters, defies a key principle that holds that light cannot pass through a hole much smaller than its wavelength. In fact, the BC team forced visible light, which has a wavelength of between 380-750 nanometers, to travel down a cable whose diameter is smaller than even the low end of that range.

The researchers say their achievement opens the door to a wide array of new technologies, from high-efficiency, inexpensive solar cells to microscopic light-based switching devices for use in optical computing. The technology could even be used to help some blind people see, the physicists say.

The advance builds upon the researchers' earlier invention of a microscopic antenna that captures visible light in much the same way radio antennae capture radio waves a discovery they announced in 2004. This time, the BC physicists designed and fabricated a tiny version of the coaxial cable the Information Age workhorse that carries telephone and Internet service along with hundreds of television and radio channels into millions of homes and businesses around the world.

"Our coax works just like the one in your house, except now for visible light," says Jakub Rybczynski, a research scientist in the Boston College Physics Department and the lead author of the APL article.

Coaxial cables are typically made up of a core wire surrounded by a layer of insulation, which in turn is surrounded by another metal sheath. This structure encloses energy and lets the cable transmit electromagnetic signals with wavelengths much larger than the diameter of the cable itself.

With this design in mind, the physicists d

Contact: Greg Frost
Boston College

Page: 1 2

Related medicine news :

1. WFU to host international conference of physicists
2. Medical, high-energy physicists collaborate to improve PET scans
3. Blood transfusion-transmitted infections: A global perspective
4. Teens unaware of sexually transmitted diseases until they catch one, Carnegie Mellon study finds
5. New study: Sexually transmitted disease treatment can be effectively administered by sex partners
6. High rates of sexually transmitted infections found in young drug users
7. Johns Hopkins study shows home test kits highly effective against sexually transmitted diseases
8. Ultrasound images transmitted over the phone allow radiologists to diagnose patients in real time
9. Ultrasound images transmitted over phone allow real-time diagnosis of patients in poorer countries
10. Invisible disabilities
11. Hidden costs and invisible contributions of adults characterized as dependent

Post Your Comments:

(Date:6/26/2016)... Cary, North Carolina (PRWEB) , ... June 26, 2016 , ... ... the release of a new product that was developed to enhance the health of ... harvested for centuries. , The two main herbs in the PawPaws Cat Kidney ...
(Date:6/25/2016)... ... 2016 , ... The temporary closing of Bruton Memorial Library on June 21 due to a ... new, often overlooked aspect of head lice: the parasite’s ability to live away from a ... occurrence, but a necessary one in the event that lice have simply gotten out of ...
(Date:6/25/2016)... (PRWEB) , ... June 25, 2016 , ... On Friday, ... presented a Bronze Wellness at Work award to iHire in recognition of their exemplary ... part of the 7th annual Maryland Workplace Health & Wellness Symposium at the BWI ...
(Date:6/24/2016)... ... June 24, 2016 , ... Marcy was in a crisis. Her son James, eight, was out ... family verbally and physically. , “When something upset him, he couldn’t control his emotions,” remembers ... would throw rocks at my other children and say he was going to kill them. ...
(Date:6/24/2016)... Rhinebeck, NY (PRWEB) , ... June 24, 2016 , ... Topical BioMedics, Inc, makers of ... of companies that call for a minimum wage raise to $12 an hour by 2020 ... wage. This will restore the lost value of the minimum wage, assure the wage floor ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... KNOXVILLE, Tenn. , June 24, 2016 /PRNewswire/ ... market providing less invasive and more durable cerebrospinal ... million in funding.  The Series-A funding is led ... the Lighthouse Fund, and other private investors.  Arkis, ... less-invasive neurosurgical instrumentation and the market release of ...
(Date:6/23/2016)... -- Research and Markets has announced the addition ... 2022" report to their offering. ... with kidney failure, it replaces the function of kidneys by ... and thus the treatment helps to keep the patient body,s ... Increasing number of ESRD patients & substantial healthcare ...
(Date:6/23/2016)... June 23, 2016 Research and ... Excipients Market by Type (Organic Chemical (Sugar, Petrochemical, Glycerin), ... Topical, Coating, Parenteral) - Global Forecast to 2021" ... The global pharmaceutical excipients market is projected ... CAGR of 6.1% in the forecast period 2016 to ...
Breaking Medicine Technology:
Cached News: