School;
of;
Optoelectronic;
Science;
and;
Engineering,;
Huazhong;
University;
of;
Science;
and;
Technology,;
Wuhan;
430074;
Key;
Laboratory;
of;
Optoelectronic;
Science;
and;
Technology;
for;
Medicine,;
Ministry;
of;
Education,;
Fujian;
Normal;
University,;
Fuzhou;
350007;