Imaging and time-stamping optical photons with sub-nanosecond resolution for quantum imaging, astrophysics and other applications
Andrei Nomerotski
Faculty of Nuclear Sciences and Physical Engineering, CTU in Prague
Abstrakt:
I will discuss fast optical cameras based on the back-illuminated silicon sensor and Timepix ASICs. The sensor has high quantum efficiency and the chip provides nanosecond scale resolution and data-driven readout. The intensified version of the camera is single photon sensitive and has been used in a variety of quantum imaging experiments as well as for other applications such as time-resolved neutron detection and ion imaging. As a motivation for fast imaging in astrophysics I will also review the standard techniques of single-photon amplitude (Michelson) interferometry and two-photon (Hanbury Brown & Twiss) intensity interferometry, and then visit recent ideas for how they can be improved in the optical through the use of entanglement distribution. A proposed new technique of two-photon amplitude interferometry requires spectral binning and picosecond time-stamping of single photons with a product of resolutions close to the Heisenberg Uncertainty Principle limit. I will show recent results and will discuss future directions for the technology.
Seminář se koná v úterý 11. června ve 14:00
v zasedací místnosti ÚTEF ČVUT, Praha 1, Husova 240/5.
| Ing. Bartoloměj Biskup, Ph.D. tajemník semináře |
doc. Ing. Ivan Štekl, CSc. ředitel ÚTEF |
doc. Dr. André Sopczak předseda NPS, ČS IEEE |
NUCLEAR & PLASMA SCIENCES SOCIETY CHAPTER
IEEE Czechoslovakia section
https://www.ieee.cz/main/section/nps/