High Photon Information Efficient Imaging using Single Photon Source
Reihaneh Shahrokhshahi, Niranjan Sridhar, Olivier Pfister, Saikat Guha, Jonathan L. Habif, Aaron Miller, Adriana E. Lita, Brice Calkins, Thomas Gerrits, Antı́a Lamas-Linares, Sae Woo Nam · 2013
We report progress towards information-efficient quantum imaging. We implemented a 4-mode interferometer (Fig.1) which uses both polarization and spatial encoding to image Hadamard-encoded phase arrays. We used this interferometer with a single-photon source to achieve the theoretical goal of Photon Information Efficiency (PIE)= 2 bits per photon (bpp). This demonstration is a particular case of a generalized M-path interferometer which can yield log2 M bits of information with a single measurement of a single photon, the photon being placed in the W state