College;
of;
Precision;
Instrument;
and;
Optoelectronics;
Engineering,and;
the;
Key;
Laboratory;
of;
Optoeleetronics;
Information;
and;
TechnicalScience,;
Ministry;
of;
Education;
of;
China,;
Tianjin;
University,;
Tianjin300072,;
China;
School;
of;
ElectricalEngineering;
and;
Telecommunications,;
University;
of;
New;
South;
Wales,Sydney,;
NSW;
2052,;
Australia.;
Department;
of;
Physics,;
Harbin;
EngineeringUniversity,;
Harbin,;
150001,;
China.;
Tianjin;
Key;
Laboratory;
of;
Biomedical;
Detection;
&Instruments,;
Tianjin;
University,;
Tianjin,;
300072,;
China.;