Dramatic optical limiting effect in graphene demonstrated

posted Nov 8, 2011, 2:36 AM by Hatef Sadeghi
Researchers from Singapore and the UK demonstrated a dramatic optical limiting effect in graphene using dispersed sub-oxidized graphene. While transparency in graphene is useful, having non-transparent (or light limiting) graphene also has its applications.
The optical-limiting effect achieved using suspensions of carbon nanotubes or carbon black occurs through a 'damage' mechanism involving the development of microbubbles or microplasmas at high light fluence, which increases light scattering and breaks the optical transparency.

More info: http://www.nanowerk.com/news/newsid=23307.php