Twin-Photon Confocal Microscopy
Quantum Physics
2015-05-18 v2 Optics
Abstract
A recently introduced two-channel confocal microscope with correlated detection promises up to 50% improvement in transverse spatial resolution [Simon, Sergienko, Optics Express {\bf 18}, 9765 (2010)] via the use of photon correlations. Here we achieve similar results in a different manner, introducing a triple-confocal correlated microscope which exploits the correlations present in optical parametric amplifiers. It is based on tight focusing of pump radiation onto a thin sample positioned in front of a nonlinear crystal, followed by coincidence detection of signal and idler photons, each focused onto a pinhole. This approach offers further resolution enhancement in confocal microscopy.
Cite
@article{arxiv.1005.1576,
title = {Twin-Photon Confocal Microscopy},
author = {D. S. Simon and A. V. Sergienko},
journal= {arXiv preprint arXiv:1005.1576},
year = {2015}
}