Calendar of Events

Friday, April 8 2022

Friday, April 8, 2022 - 4:00pm

Journal Club Video Archive

Journal Club is a group that meets bi-weekly to listen to and present summaries of exciting and insightful research papers. You can present any paper you’d like, any meeting week you’d like! Check out the start-up notice with more details regarding the club mission and expectations.

Presenter: Nico Deshler

Title: "Quantum Theory of Superresolution for Two Incoherent Optical Point Sources" (Tsang et. al. 2016)

Abstract: Rayleigh’s criterion for resolving two incoherent point sources has been the most influential measure of
optical imaging resolution for over a century. In the context of statistical image processing, violation of the
criterion is especially detrimental to the estimation of the separation between the sources, and modern
far-field superresolution techniques rely on suppressing the emission of close sources to enhance the
localization precision. Using quantum optics, quantum metrology, and statistical analysis, here we show
that, even if two close incoherent sources emit simultaneously, measurements with linear optics and photon
counting can estimate their separation from the far field almost as precisely as conventional methods do for
isolated sources, rendering Rayleigh’s criterion irrelevant to the problem. Our results demonstrate that
superresolution can be achieved not only for fluorophores but also for stars.​