Le contenu de cette page n’est pas disponible en français. Veuillez nous en excuser.
 

Fundamental Physics with Optically Levitated Dielectric Objects



Playing this video requires the latest flash player from Adobe.

Download link (right click and 'save-as') for playing in VLC or other f4v compatible player.


Recording Details

Speaker(s): 
Scientific Areas: 
Collection/Series: 
Subjects: 
PIRSA Number: 
13040114

Abstract

In the past few years, optical
cooling and manipulating of macroscopic objects, such as micro-mirrors and
cantilevers has developed into an active field of research.
In mechanical systems, the oscillator is attached to its suspension,
a thermal contact that limits the motion isolation. On the other hand, when
these small objects are levitated using the radiation pressure force of lasers,
the excellent thermal isolation even at room temperatures helps produce
very sensitive force detectors, and eventually quantum transducers for quantum
computation purposes. These new techniques may have a variety of applications
for fundamental physics such as short distance tests of gravity and
gravitational wave detection at high frequencies. In addition, there are
several proposals suggesting that optically levitated dielectrics can be cooled
to the ground state of the center of mass motion, opening the exciting
possibility of creating macroscopic matter-wave interferometers.