Navigation Links
Solitons in a crystal
Date:12/23/2013

Soliton water waves can travel several kilometers without any significant change in their shape or amplitude, as opposed to normal waves, which widen as they travel, and eventually disappear. Discovered over 150 years ago in water canals, solitons represent a surprising phenomenon of wave propagation and have been observed in natural phenomena including moving sand dunes and space plasmas. A unique aspect of solitons is that they can retain their shape because of non-linear and dispersive effects that stabilize the wave. Solitons can even occur as pulses of light that can propagate through a suitable transparent medium, e.g. an optical telecommunication fiber. Publishing in Nature Photonics, EPFL scientists collaborating with the Russian Quantum Center and the M.V. Lomonosov Moscow State University have now discovered that so-called optical dissipative solitons can also exist in small millimeter-size optical resonators.

The optical resonators are crystals shaped to form a resonator that can guide a soliton light pulse on an endless circular path. When such a soliton light pulse circulates inside the resonator, a small fraction of it can be extracted every time the pulse completes one roundtrip.

The scientists at EPFL's Laboratory for Photonics and Quantum Measurement analyzed the extracted light pulses from the resonator and found them to be surprisingly short in duration; much shorter in fact than one millionth of one millionth of a second. Due to the small size of the optical resonator, the time between two extracted pulses is extremely short and the pulse rate very high.

Besides being of large scientific interest, the high rate of repeated ultra-short light pulses is important for many applications: In astronomy, it can be used to search for Earth-like planets, chemists can identify unknown substances, and the capacity of today's telecommunication networks can be boosted by orders of magnitude. Moreover, the solitons can be used for low-noise microwave generation or in future space-based optical clocks, significantly improving today's geo-navigation. Together with EPFL's Tech-Transfer Office, the scientists have applied for a patent and hope that their discovery will soon prove itself in one of its many applications.


'/>"/>

Contact: Nik Papageorgiou
n.papageorgiou@epfl.ch
41-789-400-620
Ecole Polytechnique Fdrale de Lausanne
Source:Eurekalert

Related biology technology :

1. On the road to plasmonics with silver polyhedral nanocrystals
2. Nanocrystals make dentures shine
3. First atomic-scale real-time movies of platinum nanocrystal growth in liquids
4. Nanotechnology for Drug Delivery: Global Market for Nanocrystals
5. Novel technique to synthesize nanocrystals that harvest solar energy
6. Engineers achieve longstanding goal of stable nanocrystalline metals
7. Research on nanocrystals to move from lab to market
8. Nanocrystals and nickel catalyst substantially improve light-based hydrogen production
9. Penn researchers make flexible, low-voltage circuits using nanocrystals
10. Nanocrystals not small enough to avoid defects
11. Liquid crystal research, future applications advance
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/10/2017)... ... ... San Diego-based team building and cooking events company, Lajollacooks4u, has unveiled a ... new look is part of a transformation to increase awareness, appeal to new markets ... It will also expand its service offering from its signature gourmet cooking classes and ...
(Date:10/10/2017)... (PRWEB) , ... October 10, 2017 , ... Dr. Bob ... at his local San Diego Rotary Club. The event entitled “Stem ... CA and had 300+ attendees. Dr. Harman, DVM, MPVM was joined by two ...
(Date:10/10/2017)... , ... October 10, 2017 , ... ... and business process optimization firm for the life sciences and healthcare industries, announces ... conference in San Francisco. , The presentation, “Automating GxP Validation for Agile Cloud ...
(Date:10/9/2017)... FL (PRWEB) , ... October 09, 2017 , ... The ... scheduled to broadcast first quarter 2018. American Farmer airs Tuesdays at 8:30aET on RFD-TV. ... industry is faced with the challenge of how to continue to feed a growing ...
Breaking Biology Technology:
(Date:6/23/2017)... ITHACA, N.Y. , June 23, 2017 /PRNewswire/ ... leader in dairy research, today announced a new collaboration ... reduce the chances that the global milk supply is ... dairy project, Cornell University has become the newest academic ... Supply Chain, a food safety initiative that includes IBM ...
(Date:5/23/2017)... Italy , May 23, 2017  Hunova, the first robotic gym ... trunk, has been officially launched in Genoa, Italy . ... Europe and the USA . The technology ... on the market by the IIT spin-off Movendo Technology thanks to a ... the Multimedia News Release, please click: ...
(Date:5/16/2017)...   Bridge Patient Portal , an enterprise ... EMR Systems , an electronic medical record solutions ... established a partnership to build an interface between ... Centricity™ products, including Centricity Practice Solution (CPS), Centricity ... new integrations will allow healthcare delivery networks using ...
Breaking Biology News(10 mins):