Does anyone else feel those two optical windows on the sides of cockpit look huge? They look much bigger than the chin eots on J-20. Maybe opto-electronic system outperform radar in detecting VLO targets
If I remember correctly, the Kunming Institute of Physics successfully produced the substrate material for 8K infrared detector chips in 2022 and set their goal to like 10K. Although it is still a long way from the final product, the performance of EOTS does not only depend on the substrate material, but it is obviously preparing for a super large EOTS system.
EDIT:They have already produced HgCd single crystals in 2021, which can support Φ120mm film with 10K resolution infrared focal planes, and increased the size to Φ150mm in 2022. That paper also mentioned that the North China Institute of Optoelectronics Technology began developing 8k resolution HgCd medium-wave and short-wave infrared focal plane detectors in 2020.