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Medical Uses of Perfect Lens

IP.com Disclosure Number: IPCOM000004449D
Publication Date: 2000-Nov-13

Publishing Venue

The IP.com Prior Art Database

Related People

Chris Phoenix [+details]

Related Documents

http://composite.about.com/industry/composite/library/PR/2000/blucsd1.htm?terms=negative+dielectric+constant http://www.sst.ph.ic.ac.uk/photonics/abstracts/negref1.html


Recent advances in physics present the possibility of delivering microwave energy to small (sub-wavelength) areas inside the body without surgical implantation of antennae. This would seem to be useful for several classes of medical treatments, including tumor therapy. Recent experimental work has produced a structure with a negative index of refraction and negative magnetic constant for electromagnetic waves in the microwave domain. More recent theoretical work has indicated that such a material could form a "perfect lens"--creating a sub-wavelength image of the source on the opposite side of the lens, by transmitting both the near-field (non-radiatively-propagating component) and the far-field. Electromagnetic waves can have a source far smaller than the wavelength. The "perfect lens" would create a precise image of the source at a certain distance from the lens, thus allowing the reconcentration of emitted radiation inside a body. The effect would be similar to surgically implanting the source at the focal point. This should allow the delivery of energies on the order of watts to volumes on the order of cubic millimeters.