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:2/10/2016)... ASAE is introducing a hybrid membership model ... the option of joining or renewing through an organizational ... staff size, every employee in any size association or ... all available member benefits.   John H. ... options will allow organizations of any size and their ...
(Date:2/10/2016)... , Feb. 10, 2016  Allergan plc (NYSE: ... announced that Brent Saunders , Allergan,s CEO and ... a fireside chat session at the RBC Capital Markets ... p.m. ET at The New York Palace Hotel in ... will be webcast live and can be accessed on ...
(Date:2/10/2016)... ... February 10, 2016 , ... HOLLOWAY AMERICA, ... Pharmaceutical Engineering (ISPE) Rocky Mountain Chapter 21st Annual Vendor Exhibition on Thursday, February ... than 100 tables for its annual event, which will run from 3:00 p.m. ...
(Date:2/10/2016)... Mateo, CA (PRWEB) , ... February 10, 2016 ... ... of Multiplex Testing (PROMPT), a research registry built on the secure online PatientCrossroads ... September 2014. More than 1,600 participants have joined the PROMPT study, which seeks ...
Breaking Biology Technology:
(Date:1/21/2016)... --> ... report "Emotion Detection and Recognition Market by Technology (Bio-Sensors, NLP, ... Voice Recognition and Others), Services, Application Areas, End ... published by MarketsandMarkets, the global Emotion Detection and ... Billion by 2020, at a CAGR of 31.9%, ...
(Date:1/18/2016)... SAN JOSE, Calif. , Jan. 18, 2016 ... storage security software that simplifies the use and ... a technology and go-to-market partnership with American Cyber.  ... "American Cyber brings extensive experience leading transformational C4ISR ... missions implementing and integrating the latest proven technology ...
(Date:1/11/2016)... 11, 2016 Synaptics Incorporated (NASDAQ: SYNA ... announced that its ClearPad ® TouchView ™ ... two separate categories in the 8 th Annual ... Technology Breakthrough. The Synaptics ® TDDI solution enables ... chain, thinner devices, brighter displays and borderless designs. ...
Breaking Biology News(10 mins):