Shrinking optical devices

Details Shrinking optical devices Shrinking optical devices

Jul 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009njph...11g3033w&link_type=abstract

New Journal of Physics, Volume 11, Issue 7, pp. 073033 (2009).

Physics

13

Scientific paper

Much of optics depends on objects being much larger than the wavelength of light: shadows of opaque objects are sharp only if free of diffraction effects, and 'cat's eye' retroreflectors function only if they are large. Here, we show how to make theoretically arbitrarily small versions of these devices by exploiting the power of a negatively refracting lens to magnify objects that are smaller than the wavelength, thus creating the effect of a large object while keeping all physical dimensions small. We also give a new perspective on the 'perfect lens theorem' on which the paper is based.

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