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:5/25/2016)... ... 25, 2016 , ... Lajollacooks4u has become a rising hotspot for specialized team ... its top attractions. Fortune 500 companies, such as Illumina, Hewlett-Packard, Qualcomm and Elsevier, ... team-building experience. , Each event kicks off with an olive oil and salt-tasting competition. ...
(Date:5/25/2016)... AZ (PRWEB) , ... May 25, 2016 , ... ... Dr. Michael Fitzmaurice recently became double board-certified in surgery and surgery of the ... 2015. Dr. Fitzmaurice is no stranger to going above and beyond in his ...
(Date:5/25/2016)... , ... May 25, 2016 , ... WEDI, the nation’s ... exchange, today announced that Charles W. Stellar has been named by the WEDI Board ... since January 2016. As an executive leader with more than 35 years of experience ...
(Date:5/24/2016)... Mass. (PRWEB) , ... May 24, 2016 , ... ... heart attacks, diabetes, and traumatic injuries, will be accelerated by research at Worcester ... cells into engines of wound healing and tissue regeneration. , The novel method, ...
Breaking Biology Technology:
(Date:4/28/2016)... BANGALORE, India , April 28, 2016 ... of Infosys (NYSE: INFY ), and Samsung SDS, ... partnership that will provide end customers with a more ... payment services.      (Logo: http://photos.prnewswire.com/prnh/20130122/589162 ) ... financial services, but it also plays a fundamental part in ...
(Date:4/15/2016)... , April 15, 2016  A new ... make more accurate underwriting decisions in a fraction ... timely, competitively priced and high-value life insurance policies ... screenings. With Force Diagnostics, rapid testing ... lifestyle data readings (blood pressure, weight, pulse, BMI, ...
(Date:3/31/2016)... PROVIDENCE, R.I. , March 31, 2016  Genomics ... leadership of founding CEO, Barrett Bready , M.D., ... addition, members of the original technical leadership team, including ... Vice President of Product Development, Steve Nurnberg and Vice ... have returned to the company. Dr. Bready ...
Breaking Biology News(10 mins):