Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Seeing the Light? Making Sense of Disorder in Polymer Opals

Abstract:
The iridescent colours of natural opals have fascinated people for thousands of years. It is interesting, however, that the colours we see are generated only by diffraction of light between the ordered planes of atoms which make up the structures. In order to reproduce this effect in artificial systems and to allow such opal characteristics to be applied to, for example, flexible materials such as clothing or packaging, research into synthetic opals has gained momentum in the last decades.

Seeing the Light? Making Sense of Disorder in Polymer Opals

Germany | Posted on December 7th, 2012

The diffraction of light from opal materials is very sensitive to the angle of reflection from the atomic planes within these materials, and variations in these angles can occur as a result of defects within the crystal structure. In order to fully characterize and understand the optical properties of synthesized opals it is important to be able to completely measure this angle-dependence; however, previously a technique to do this has been lacking.

Now, Andrew I. Haines and Jeremy J. Baumberg et al. have described a new way of measuring the three-dimensional angular scattering of light from nanostructures (hyperspectral goniometry technique), and use it to show that scattering from polymer opals, composed of ordered polymer nanospheres, is anisotropic. Specifically, light is scattered more broadly in the direction perpendicular to sample processing. They find that this effect is the result of chain defects, i.e., the presence of extra lines of polymer nanospheres, in the polymer-opal films tested; and that the enhanced colour observed when the structures are more highly ordered is due to an increased effective refractive-index contrast.

Furthermore, by doping these synthetic opal structures with light-absorbing carbon nanoparticles they discovered the colour saturation could be greatly improved as the nanoparticles absorb multiply scattered light so lower the background scattering without affecting the resonant scattering.

This research was reported in Advanced Optical Materials, a new section in Advanced Materials dedicated to breakthrough discoveries and fundamental research in photonics, plasmonics, metamaterials, and more, covering all aspects of light-matter interactions. Advanced Optical Materials will start as an independent journal in 2013. More information can be found on www.advopticalmat.de

####

For more information, please click here

Copyright © Wiley-VCH Materials Science Journals

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 Links

Link to the original paper on Wiley Online Library:

Related News Press

News and information

GS7 Graphene Sensor maybe Solution in Fight Against Cancer January 25th, 2015

Toyocolor to Launch New Carbon Nanotube Materials at nano tech 2015 January 24th, 2015

NANOPOSTER 2015 - 5th Virtual Nanotechnology Conference - call for abstracts January 24th, 2015

Nanosensor Used for Simultaneous Determination of Effective Tea Components January 24th, 2015

Discoveries

GS7 Graphene Sensor maybe Solution in Fight Against Cancer January 25th, 2015

Nanosensor Used for Simultaneous Determination of Effective Tea Components January 24th, 2015

The latest fashion: Graphene edges can be tailor-made: Rice University theory shows it should be possible to tune material's properties January 24th, 2015

Silver nanowires demonstrate unexpected self-healing mechanism: The material has potential for flexible electronics January 23rd, 2015

Announcements

GS7 Graphene Sensor maybe Solution in Fight Against Cancer January 25th, 2015

Toyocolor to Launch New Carbon Nanotube Materials at nano tech 2015 January 24th, 2015

NANOPOSTER 2015 - 5th Virtual Nanotechnology Conference - call for abstracts January 24th, 2015

Nanosensor Used for Simultaneous Determination of Effective Tea Components January 24th, 2015

Textiles/Clothing

Teijin to Participate in Nano Tech 2015 January 22nd, 2015

Anti-microbial coatings with a long-term effect for surfaces presentation at nano tech 2015 in Japan January 21st, 2015

Laser-induced graphene 'super' for electronics: Rice University researchers test flexible, three-dimensional supercapacitors January 14th, 2015

Zinc oxide materials tapped for tiny energy harvesting devices: New research helps pave the way toward highly energy-efficient zinc oxide-based micro energy harvesting devices with applications in portable communications, healthcare and environmental monitoring, and more January 13th, 2015

Photonics/Optics/Lasers

Scientists 'bend' elastic waves with new metamaterials that could have commercial applications: Materials could benefit imaging and military enhancements such as elastic cloaking January 23rd, 2015

Teijin to Participate in Nano Tech 2015 January 22nd, 2015

New method to generate arbitrary optical pulses January 21st, 2015

New signal amplification process set to transform communications, imaging, computing: UC San Diego researchers discover a mechanism to amplify signals in optoelectronic systems that is far more efficient than standard processes January 21st, 2015

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







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE