Subjects: Optics >> Quantum optics submitted time 2023-02-19
Chen Yang
Zhi-Yuan Zhou
Liu-Long Wang
Yan Li
Shi-Kai Liu
Zheng Ge
Xiao-Chun Zhang
Qing Tang
Guang-Can Guo
Bao-Sen Shi
Abstract： Quantum nonlinear interferometers (QNIs) can measure the infrared physical quantities of a sample by detecting visible photons. A QNI with Michelson geometry based on the spontaneous parametric down-conversion in a second-order nonlinear crystal is studied systematically. A simplified theoretical model of the QNI is presented. The interference visibility, coherence length, equal-inclination interference, and equal-thickness interference for the QNI are demonstrated theoretically and experimentally. As an application example of the QNI, the refractive index and the angle between two surfaces of a BBO crystal are measured using equal-inclination interference and equal-thickness interference.
Peer Review Status:
Awaiting Review
Hits
Hits
Downloads
Comment