Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button

Home > Press > Imperfections are perfect

Figure 1. The red circles show the position of holes in the optical chip in what has so far been seen as an ideal structure. Random disorder has been introduced in this structure (compare the position of red circles to the actual holes (black) in the structure), which results in the localisation of light (orange areas).
Figure 1. The red circles show the position of holes in the optical chip in what has so far been seen as an ideal structure. Random disorder has been introduced in this structure (compare the position of red circles to the actual holes (black) in the structure), which results in the localisation of light (orange areas).

Abstract:
Researchers from DTU Fotonik surprise the scientific world with their new discovery which, in the long term, may be used in, e.g., solar cells and quantum computers. Their findings will be published on 12 March 2010 in the prestigious international journal Science.

By Lotte Krull

Imperfections are perfect

Denmark | Posted on March 16th, 2010

All over the world, intensive research is being conducted on how to use the smallest particles of light, photons, for communication applications. Where electronic technology makes use of microchips, optical communication uses the so-called optical chip.

On optical chips, a structure of holes is etched, and it is by means of these holes that the researchers try to control the photons' movements on the chip So far, the aim has been to achieve a regular and ordered hole structure, and it has been the general conviction that disorder or imperfections in the hole structure reduce or simply destroy the functionality of the optical chip.

Disorder as a valuable resource

A group of researchers from DTU Fotonik has now turned everything totally upside down and demonstrated that disordered structures on optical chips may actually be an advantage. The researchers deliberately placed the holes on the optical chip irregularly, and this improved the chip.

It has thus proved possible to capture and thus control photons very effectively on the ‘disordered' chip. The discovery allows the production of a brand new type of optical chips where disorder is utilised as a valuable resource instead of being considered a limitation.

This finding is a major basic scientific breakthrough, which is published in the international journal Science on 12 March 2010.

The discovery may potentially be used in, e.g., solar cells and optical sensors or within quantum information technology. The dawning quantum information technology promises fundamentally new ways of coding and processing information, using the laws of quantum mechanics. This can, among other things, be used for 100% secure information exchange or, ultimately, for a quantum computer which can perform calculations far faster than the supercomputers of today.

The research group behind the discovery

The research has been conducted at the Department of Photonics Engineering at the Technical University of Denmark by a research group consisting of postdocs Luca Sapienza, Søren Stobbe and David Garcia, PhD students Henri Thyrrestrup and Stephan Smolka as well as Associate Professor and group leader Peter Lodahl.

####

For more information, please click here

Contacts:
Associate Professor Peter Lodahl
DTU Fotonik, Quantum Photonics Group tel. (mobile): +45 51 64 74 83


See also: www.fotonik.dtu.dk/quantumphotonics

Copyright © Technical University of Denmark

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

New remote-controlled microrobots for medical operations July 23rd, 2016

New superconducting coil improves MRI performance: UH-led research offers higher resolution, shorter scan time July 23rd, 2016

New probe developed for improved high resolution measurement of brain temperature: Improved accuracy could allow researchers to measure brain temperature in times of trauma when small deviations in temperature can lead to additional brain injury July 23rd, 2016

Quantum drag:University of Iowa physicist says current in one iron magnetic sheet can create quantized spin waves in another, separate sheet July 22nd, 2016

Possible Futures

New remote-controlled microrobots for medical operations July 23rd, 2016

New superconducting coil improves MRI performance: UH-led research offers higher resolution, shorter scan time July 23rd, 2016

New probe developed for improved high resolution measurement of brain temperature: Improved accuracy could allow researchers to measure brain temperature in times of trauma when small deviations in temperature can lead to additional brain injury July 23rd, 2016

Quantum drag:University of Iowa physicist says current in one iron magnetic sheet can create quantized spin waves in another, separate sheet July 22nd, 2016

Chip Technology

Quantum drag:University of Iowa physicist says current in one iron magnetic sheet can create quantized spin waves in another, separate sheet July 22nd, 2016

New Yale-developed device lengthens the life of quantum information July 22nd, 2016

New reaction for the synthesis of nanostructures July 21st, 2016

Research team led by NUS scientists develop plastic flexible magnetic memory device: Novel technique to implant high-performance magnetic memory chip on a flexible plastic surface without compromising performance July 21st, 2016

Quantum Computing

New Yale-developed device lengthens the life of quantum information July 22nd, 2016

RMIT researchers make leap in measuring quantum states July 21st, 2016

Electron 'spin control' of levitated nanodiamonds could bring advances in sensors, quantum information processing July 20th, 2016

Tiny works of art with great potential: New materials for the construction of metal-organic 2-dimensional quasicrystals July 15th, 2016

Nanoelectronics

Quantum drag:University of Iowa physicist says current in one iron magnetic sheet can create quantized spin waves in another, separate sheet July 22nd, 2016

Scientists glimpse inner workings of atomically thin transistors July 21st, 2016

'Green' electronic materials produced with synthetic biology July 16th, 2016

Tiny works of art with great potential: New materials for the construction of metal-organic 2-dimensional quasicrystals July 15th, 2016

Discoveries

New remote-controlled microrobots for medical operations July 23rd, 2016

New superconducting coil improves MRI performance: UH-led research offers higher resolution, shorter scan time July 23rd, 2016

Nanoparticle versus cancer: Scientists have created nanoparticles which cure cancer harmlessly July 22nd, 2016

Quantum drag:University of Iowa physicist says current in one iron magnetic sheet can create quantized spin waves in another, separate sheet July 22nd, 2016

Announcements

New remote-controlled microrobots for medical operations July 23rd, 2016

New superconducting coil improves MRI performance: UH-led research offers higher resolution, shorter scan time July 23rd, 2016

New probe developed for improved high resolution measurement of brain temperature: Improved accuracy could allow researchers to measure brain temperature in times of trauma when small deviations in temperature can lead to additional brain injury July 23rd, 2016

Quantum drag:University of Iowa physicist says current in one iron magnetic sheet can create quantized spin waves in another, separate sheet July 22nd, 2016

Energy

Researchers discover key mechanism for producing solar cells: Better understanding of perovskite solar cells could boost widespread use July 21st, 2016

The future of perovskite solar cells has just got brighter -- come rain or shine: Korean researchers at POSTECH have succeeded in developing high-efficiency perovskite solar cells that retain excellent performance over two months in a very humid condition July 21st, 2016

Scientists develop way to upsize nanostructures into light, flexible 3-D printed materials: Virginia Tech, Livermore National Lab researchers develop hierarchical 3-D printed metallic materials July 20th, 2016

Rice's 'antenna-reactor' catalysts offer best of both worlds: Technology marries light-harvesting nanoantennas to high-reaction-rate catalysts July 18th, 2016

Research partnerships

Quantum drag:University of Iowa physicist says current in one iron magnetic sheet can create quantized spin waves in another, separate sheet July 22nd, 2016

Rice's 'antenna-reactor' catalysts offer best of both worlds: Technology marries light-harvesting nanoantennas to high-reaction-rate catalysts July 18th, 2016

Researchers invent 'smart' thread that collects diagnostic data when sutured into tissue: Advances could pave way for new generation of implantable and wearable diagnostics July 18th, 2016

Leti and Korea Institute of Science and Technology to Explore Collaboration on Advanced Technologies for Digital Era July 14th, 2016

Solar/Photovoltaic

Researchers discover key mechanism for producing solar cells: Better understanding of perovskite solar cells could boost widespread use July 21st, 2016

The future of perovskite solar cells has just got brighter -- come rain or shine: Korean researchers at POSTECH have succeeded in developing high-efficiency perovskite solar cells that retain excellent performance over two months in a very humid condition July 21st, 2016

Scientists develop way to upsize nanostructures into light, flexible 3-D printed materials: Virginia Tech, Livermore National Lab researchers develop hierarchical 3-D printed metallic materials July 20th, 2016

Organic computers are coming: Scientists found a molecule that will help to make organic electronic devices July 17th, 2016

Quantum nanoscience

Quantum drag:University of Iowa physicist says current in one iron magnetic sheet can create quantized spin waves in another, separate sheet July 22nd, 2016

A new spin on reality July 15th, 2016

Physicists couple distant nuclear spins using a single electron: For the first time, researchers at the University of Basel have coupled the nuclear spins of distant atoms using just a single electron July 12th, 2016

Quantum technologies to revolutionize 21st century: Nobel Laureates to discuss impacts at 66th Lindau Meeting July 5th, 2016

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic