Real-time 12-photon superresolution
This interferometer achieves superresolution equivalent to a 12-photon de Broglie wavelength by cascaded upconversion of orbital angular momentum states, operating in real time with classical light.
Zhang, Xinyu · Wu, Haijun · Yu, Bing Shi · Rosales-Guzmán, Carmelo · Zhu, Zhihan · Hu, Xiaopeng · Shi, Baosen · Zhu, Shining
Laser and Photonics Reviews 2023
Real-time observation of a 12-photon de Broglie wavelength
Interference visibility is nearly perfect
Uses only a low-cost detector