Physical mechanisms for the unique optical properties of chalcogen-hyperdoped siliconHezhu Shao, Yuan Li, Jinhu Zhang, Bo-Yuan Ning, Wenxian Zhang, Xi-Jing Ning, Li Zhao and Jun ZhuangEPL, 99 4 (2012) 46005DOI: https://doi.org/10.1209/0295-5075/99/46005