Reduced distortion in high-index microsphere imaging by partial immersion Yang, Songlin ; Wang, Xiaoqing ; Wang, Jianguo ; Cao, Yurong ; Wang, Fengge ; Chen, Tao ; Ye, Yong-Hong Abstract Publication: Applied Optics Pub Date: September 2018 DOI: 10.1364/AO.57.007818 Bibcode: 2018ApOpt..57.7818Y