Super-resolution spectroscopy using a quantum memory

PRELEGENT: 
dr Michał Parniak
DataSeminarium: 
2022-02-28
AfiliacjaPrelegenta: 
Centrum Nowych Technologii, Uniwersytet Warszawski
AbstraktSeminarium: 

While super-resolution techniques are widespread, they are rarely applied in fluorescence spectroscopy. One of the new methods for achieving super-resolution has been discovered through considering the quantum Cramer-Rao bound, which subsequently led to optimal projective measurement that facilitated resolution beyond the Rayleigh limit. Those measurements are especially difficult to implement in the spectro-temporal domain. We have devised a protocol that utilizes the spectro-temporal processing capabilities of our quantum memory. The atomic ensemble trapped and cooled in our laboratory has served as a processor for time-frequency quantum information, which allowed for optimal extraction of information from incident photons and beating the Rayleigh limit in spectroscopy. 

The seminar will be held remotely. To participate in the webinar, please, contact prof. Szymon Pustelny (szymon.pustelny@uj.edu.pl) MS Teams Channel: Zakład Fotoniki IF UJ. Link to the channel:  https://teams.microsoft.com/l/channel/19%3a3721f0b9286c47c78efdd4f33e6adf7a%40thread.tacv2/Og%25C3%25B3lny?groupId=d4c030cf-1dbb-4300-ad6d-f346f7a2dd08&tenantId=eb0e26eb-bfbe-47d2-9e90-ebd2426dbceb