Scientists Levitated A Diamond Particle With A Laser Beam (Video)
Aug 14, 2013 09:09
A tractor beam of sorts is in the works. That tiny prick of light you see above is a speck of diamond dust trapped in the grip of a laser beam. Researchers are on their way to understanding macro and quantum physics.
The researchers at the University of Rochester have submitted a paper for publication to the journal Optics Letters to describe that they were successful at capturing, levitating and holding diamond nanoparticles as small as 100 nm.
Led by Nick Vamivakas, the researchers used laser trapping techniques using a highly concentrated laser beam that exerts an attractive or repulsive force against a dielectric nanoparticle. This is the first experiment to successfully pick up diamonds.
The light emitted by the nanodiamonds is due to photoluminescence. The defects inside the nanodiamonds absorb photons from the second laser – not the one that is trapping the diamonds – which excites the system and changes the spin. The system then relaxes and other photons are emitted. This process is also known as optical pumping.
The whole experiment involved spraying an aerosolized nanodiamond dust solution into a 10 inch cubic box.
Building upon this success, Vamivakas' team hopes to apply the technology towards nano sensory equipment to explain some of physic's most fundamental conundrums. [University of Rochester via R&D Mag]
When discussing the choice between choosing a console, one of the most important factors is the games that particular system can exclusively provide you. Generally, at first glance everyone looks towards the first party collections from each system such as Halo, Mario, and Uncharted. Read more
In the next five years or so it is expect that Virtual Reality gambling wagers are set for massive rise of up to 800% according to a report recently released, and this huge percentage increase will be driven by the 'high rollers' using VR technology. Read more
In today’s world, where social media, specifically Instagram is all the rage, everyone wants to get more and more followers and become a social media star. But there’s a difference between just dreaming and taking smart actions to achieve that dream. You need to put a great deal of effort to promote yourself on social media. Read more