title: High-sensitivity fiber-tip pressure sensor with graphene diaphragm.
abstract: A miniature fiber-tip pressure sensor was built by using an extremely thin graphene film as the diaphragm. The graphene also acts as a light reflector, which, in conjunction with the reflection at the fiber end-air interface, forms a low finesse Fabry-Perot interferometer. The graphene based sensor demonstrated pressure sensitivity over 39.4 nm/kPa with a diaphragm diameter of 25 μm. The use of graphene as diaphragm material would allow highly sensitive and compact fiber-tip sensors.
authors: Department of Electrical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, China.
authors: Jun
authors: J
authors: Ma
authors: Wei
authors: W
authors: Jin
authors: Hoi Lut
authors: HL
authors: Ho
authors: Ji Yan
authors: JY
authors: Dai