Wednesday, 15 August 2012 14:24

Swinburne scientists use gold nanorods to boost optical storage capacity and security

By

Swinburne University of Technology researchers have developed a technique that uses nanotechnology to increase the storage capacity of optical discs and encrypt the data they carry.

Professor Min Gu and Dr Xiangping Li of Swinburne University, along with a visiting PhD student from Taiwan's National Chiao Tung University, have found a way of using gold nanorods as a coating on DVDs.

As the light beam is polarised in different directions, it is reflected by different subsets of the nanorods. Different light frequencies (colours) can also be used.

"Instead of having a beam in a straight plane (a vector), the team has been able to make that beam rotated on any plane, with infinite control so now they can make that beam polarised in any direction and then they can tune the light frequency," said Professor Gu.

"The new technique creates a truly unique way of aiming a beam of light so that it only reacts to very specific sets of particles."

In addition to increasing storage density (the length of a gold nanorod is 1/500th of the thickness of a human hair), the technique provides a new way of encrypting the data.

The technology is said to have medical applications in the use of lasers to destroy cancer cells.

The research was funded by the Australian Research Council.

CHIEF DATA & ANALYTICS OFFICER BRISBANE 2020

26-27 February 2020 | Hilton Brisbane

Connecting the region’s leading data analytics professionals to drive and inspire your future strategy

Leading the data analytics division has never been easy, but now the challenge is on to remain ahead of the competition and reap the massive rewards as a strategic executive.

Do you want to leverage data governance as an enabler?Are you working at driving AI/ML implementation?

Want to stay abreast of data privacy and AI ethics requirements? Are you working hard to push predictive analytics to the limits?

With so much to keep on top of in such a rapidly changing technology space, collaboration is key to success. You don't need to struggle alone, network and share your struggles as well as your tips for success at CDAO Brisbane.

Discover how your peers have tackled the very same issues you face daily. Network with over 140 of your peers and hear from the leading professionals in your industry. Leverage this community of data and analytics enthusiasts to advance your strategy to the next level.

Download the Agenda to find out more

DOWNLOAD NOW!

Stephen Withers

joomla visitors

Stephen Withers is one of Australia¹s most experienced IT journalists, having begun his career in the days of 8-bit 'microcomputers'. He covers the gamut from gadgets to enterprise systems. In previous lives he has been an academic, a systems programmer, an IT support manager, and an online services manager. Stephen holds an honours degree in Management Sciences and a PhD in Industrial and Business Studies.

VENDOR NEWS & EVENTS

REVIEWS

Recent Comments