4:15 PM - 4:30 PM [E-6-05] Buffer-Free GeSn Photodetector Based on Si with Extended Cutoff Wavelength ○Y. Wang1, C. Fang1, Y. Liu1, G. Han1, Y. Hao1 (1.Xidian University (China)) https://doi.org/10.7567/SSDM.2018.E-6-05