Spatially noiseless optical amplification of images

Phys Rev Lett. 2005 Jun 10;94(22):223603. doi: 10.1103/PhysRevLett.94.223603. Epub 2005 Jun 9.

Abstract

We present the first experimental demonstration of noiseless amplification of images, where noise refers to spatial quantum fluctuations on the pixels of single shot images. Phase-sensitive and phase-insensitive schemes are compared and the noise figures are in good agreement with theory, inasmuch this theory includes the quantum efficiency of the whole system and the pixel size.