Abstract
The spatial resolution of an imaging apparatus is limited by the Rayleigh diffraction bound, a consequence of the imager’s finite spatial extent. We show some -photon strategies that permit resolution of details that are smaller than this bound, attaining either a enhancement (standard quantum limit) or a enhancement (Heisenberg-like scaling) over standard techniques. In the incoherent imaging regime, the methods presented are loss resistant, since classical light sources suffice. Our results may be of importance in many applications: microscopy, telescopy, lithography, metrology, etc.
- Received 5 May 2008
- Publisher error corrected 3 March 2009
DOI:https://doi.org/10.1103/PhysRevA.79.013827
©2009 American Physical Society
Corrections
3 March 2009