The 13th International Photonics and OptoElectronics Meetings (POEM 2021) is hosted online from Nov.6th to 8th.  http://poem.hust.edu.cn

You can watch the livestream using the following link: https://www.koushare.com/topicIndex/i/poem2021

Prof. Zhang and his colleagues host a topical meeting of Nano-Optics and Meta-Devices (NOMD). You are welcome to watch the meeting online:

https://www.koushare.com/lives/room/087935