
Optical Resolution is being increased by a factor of ten
Nicholas Fang at the University of Illinois is developing optical technology which will allow
biologists to see what is going on at the sub-cellular level.
Vision and Missions:
sub-wavelength nanophotonics (fundamental physics of plasmonic structures and devices);
advancement in nanofabrication technology, with preference of photo-material interaction
related techniques;
mechanism of energy and mass transport in micro/nano/bio systems;
acoustic metamaterial.
New Superlens Focuses Sound Waves
Our group have developed a novel acoustic superlens that focuses sound waves in much the
same way that an optical superlens focuses light waves. In the May 15 issue of Physical
Review Letters. Zhang etc described the design and test results for an ultrasonic
metamaterial lens that focuses 60kHz (~2cm wavelength) sound waves under water. The lens
is made up of subwavelength elements and is therefore potentially more compact than
phononic lenses that operate in the same frequency range. Made of metamaterial, the
acoustic superlens technology, if improved, could lead to an acoustic cloaking device that
might hide submarines and other objects from sonar. This work has also been reported by
Technology Review. http://www.technologyreview.com/biomedicine/22710/
http://mechse.illinois.edu/research/fang/
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