Seminar by Dr Hugo Defienne

Seminar by Dr Hugo Defienne, University of Glasgow, United Kingdom, on 15 February 2022 at 2pm in the auditorium of the Institut d'Optique in Palaiseau., on the topic: "Breaking classical imaging limits with entangled photons. In short: Quantum physics may be at the origin of tomorrow's microscopes - let's understand how it works!"

Abstract: "Quantum imaging harnesses quantum properties of light to go beyond the limits of classical imaging. In this respect, entangled photons sources are very promising. They have been proposed and used to achieve super-resolution [1] and sub-shot-noise imaging [2], and to create new imaging approaches such as ghost imaging [3], quantum illumination [4] and quantum holography [5]. In this presentation, I will show recent imaging techniques based on entangled photon pairs that our team has developed. I will discuss some fundamental aspects of these approaches, including the critical role of entanglement, but I will also insist on their application potential for biological imaging and microscopy. 

[1] Boto, Agedi N., et al. "Quantum interferometric optical lithography: exploiting entanglement to beat the diffraction limit." Physical Review Letters 85.13 (2000): 2733.

[2] Brida, Giorgio, Marco Genovese, and I. Ruo Berchera. "Experimental realization of sub-shot-noise quantum imaging." Nature Photonics 4.4 (2010): 227-230.

[3] Pittman, Todd B., et al. "Optical imaging by means of two-photon quantum entanglement." Physical Review A 52.5 (1995): R3429.

[4] Defienne, Hugo, et al. "Quantum image distillation." Science advances 5.10 (2019): eaax0307.

[5] Defienne, Hugo, et al. "Polarization entanglement-enabled quantum holography." Nature Physics 17, 591-597 (2021)