Wenxiao ZHAO, Jiaqi JIANG, Chunyu LI, Bo ZHAO, Aili WANG, Haibin WU, Zhihan ZHU. Polarization-resolved upconversion detection enabled by time-division multiplexed nonlinear spatial Stokes tomography (invited)[J]. Infrared and Laser Engineering, 2024, 53(12): 20240410

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- Infrared and Laser Engineering
- Vol. 53, Issue 12, 20240410 (2024)

Fig. 1. Polarization-resolved upconversion detection principle diagram. (a) Principle diagram, where the VR is full-wave electrically controlled variable retarder, DM is dichroic mirror, is nonlinear medium, the right-side show the timing diagram of the system operation; (b) Gaussian profile correction and polarization reconstruction

Fig. 2. Experimental setup

Fig. 3. Polarization-resolved upconversion detection results of IG vector mode, where the left sides are the Signal and Reconstruction SOC states on the higher-order Poincaré sphere and fidelity F , and the right sides are the spatial polarization distribution of signal, upconversion and reconstruction

Fig. 4. Results of polarization-resolved upconversion detection for images

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