This Day On The Street
Continue to site right-arrow
ADVERTISEMENT
This account is pending registration confirmation. Please click on the link within the confirmation email previously sent you to complete registration.
Need a new registration confirmation email? Click here
TheStreet Open House

Scientists Develop First Photonic Topological Insulators To Provide Protection For Transport Of Light

NEW YORK, April 10, 2013 /PRNewswire-USNewswire/ -- Researchers at the Technion-Israel Institute of Technology have developed and successfully demonstrated a photonic Floquet topological insulator, a new device used to protect the transport of light through a unique, lattice of 'waveguides.' The advancement may play a key role in the photonics industry. A description is published in the current issue of NATURE ( 11 April 2013).

The photonics industry is at the heart of modern computing and communication.  It has allowed vast amounts of data to be transmitted extremely quickly over fiber optic lines that cross the oceans. Photonic technology (i.e., technology that is based on the flow and control of light) is at the heart of DVDs, fabrication of computer chips, and solar cells.

As computers get faster and computer chips get denser, there is a need for smaller and smaller devices that manipulate light. But when devices get smaller, imperfections in the fabrication processes can play a large role, making light move irregularly and unpredictably. In other words, there's a need for a new methodology to prevent unwanted scattering from any kind of defect.

Researchers in the group of Prof. Mordechai (Moti) Segev at the Technion, in collaboration with the group of Prof. Alex Szameit at the Friedrich-Schiller University in Jena, Germany, have done exactly that.  Using a lattice-work of 'waveguides' (which are like wires that guide light instead of electricity), the researchers have experimentally demonstrated a 'photonic topological insulator.'  The researchers used an array of helical 'waveguides' (shaped like curly hairs) arranged in a 'honeycomb' lattice structure, similar to the pattern observed in beehives.  In such a structure, where each waveguide is thinner than a tenth of a human hair, light is 'topologically protected,' which means it flows uninterrupted despite the presence of defects.

According to Segev, "topological protection means that light simply flows around imperfections essentially without noticing them."

1 of 2

Select the service that is right for you!

COMPARE ALL SERVICES
Action Alerts PLUS
Try it NOW

Jim Cramer and Stephanie Link actively manage a real portfolio and reveal their money management tactics while giving advanced notice before every trade.

Product Features:
  • $2.5+ million portfolio
  • Large-cap and dividend focus
  • Intraday trade alerts from Cramer
  • Weekly roundups
TheStreet Quant Ratings
Try it NOW
Only $49.95/yr

Access the tool that DOMINATES the Russell 2000 and the S&P 500.

Product Features:
  • Buy, hold, or sell recommendations for over 4,300 stocks
  • Unlimited research reports on your favorite stocks
  • A custom stock screener
  • Upgrade/downgrade alerts
Stocks Under $10
Try it NOW

David Peltier, uncovers low dollar stocks with extraordinary upside potential that are flying under Wall Street's radar.

Product Features:
  • Model portfolio
  • Stocks trading below $10
  • Intraday trade alerts
  • Weekly roundups
Dividend Stock Advisor
Try it NOW

Jim Cramer's protege, David Peltier, identifies the best of breed dividend stocks that will pay a reliable AND significant income stream.

Product Features:
  • Diversified model portfolio of dividend stocks
  • Alerts when market news affect the portfolio
  • Bi-weekly updates with exact steps to take - BUY, HOLD, SELL
Real Money Pro
Try it NOW

All of Real Money, plus 15 more of Wall Street's sharpest minds delivering actionable trading ideas, a comprehensive look at the market, and fundamental and technical analysis.

Product Features:
  • Real Money + Doug Kass Plus 15 more Wall Street Pros
  • Intraday commentary & news
  • Ultra-actionable trading ideas
Options Profits
Try it NOW

Our options trading pros provide daily market commentary and over 100 monthly option trading ideas and strategies to help you become a well-seasoned trader.

Product Features:
  • 100+ monthly options trading ideas
  • Actionable options commentary & news
  • Real-time trading community
  • Options TV
To begin commenting right away, you can log in below using your Disqus, Facebook, Twitter, OpenID or Yahoo login credentials. Alternatively, you can post a comment as a "guest" just by entering an email address. Your use of the commenting tool is subject to multiple terms of service/use and privacy policies - see here for more details.
Submit an article to us!
DOW 16,805.41 +127.51 0.76%
S&P 500 1,964.58 +13.76 0.71%
NASDAQ 4,483.7150 +30.9230 0.69%

Brokerage Partners

Rates from Bankrate.com

  • Mortgage
  • Credit Cards
  • Auto

Free Newsletters from TheStreet

My Subscriptions:

After the Bell

Before the Bell

Booyah! Newsletter

Midday Bell

TheStreet Top 10 Stories

Winners & Losers

Register for Newsletters
Top Rated Stocks Top Rated Funds Top Rated ETFs