[1]State Key Laboratory of High Performance Complex Manufacturing;
College of Mechanical and Electrical Engineering;
Central South University;
Changsha 410083;
China;
[1]State Key Laboratory of High Performance Complex Manufacturing;
College of Mechanical and Electrical Engineering;
Central South University;
Changsha 410083;
China;
[1]State Key Laboratory of High Performance Complex Manufacturing;
College of Mechanical and Electrical Engineering;
Central South University;
Changsha 410083;
China;
[1]State Key Laboratory of High Performance Complex Manufacturing;
College of Mechanical and Electrical Engineering;
Central South University;
Changsha 410083;
China;
[1]State Key Laboratory of High Performance Complex Manufacturing;
College of Mechanical and Electrical Engineering;
Central South University;
Changsha 410083;
China;
Refractive index sensor; Mach-Zehnder interferometer; photonic crystal fiber; hydrofluoric acid;