Wanxin Li and Jiaxin Chen participated in the 2nd Photonic Technology Forum

  From November 27th to 30th, 2020, the 2nd Photonic Technology Forum was held in Guangzhou, China. Master student Wanxin Li gave a poster presentation on "High Sensitivity Subwavelength Grating Microring Refractive Index Sensor Based on Mode Splitting", and master student Jiaxin Chen gave a report on "Subwavelength Grating Antenna for Large Aperture Optical Phased Array".

    The 2nd Photonic Technology Forum was co-sponsored by the Ministry of Information Science of the National Natural Science Foundation of China, Guangdong Optical Society, "Science in China: Information Science" magazine and "Light: Science & Applications". The purpose of the forum is to promote academic exchanges, strengthen industry-university-research-application and regional win-win cooperation, and promote photonic technology research to better serve national strategies and economic development. Master student Wanxin Li demonstrated that the sub-wavelength grating micro-ring structure is based on the mode splitting caused by the lack of rotational symmetry, and finally achieves high-sensitivity detection of the measured object. Master student Jiaxin Chen designed a sub-wavelength grating antenna for optical phased arrays, which uses the quasi-BIC effect to reduce the relative lateral emission and controls the size as well as position of the sub-wavelength structure to control the intensity of the grating. When the feature size is greater than 100nm The grating size can reach millimeter or even centimeter level.