High-sensitivity fiber-tip pressure sensor with graphene diaphragm

Jun Ma, Wei Jin, Hoi Lut Ho, Jiyan Dai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

268 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)2493-2495
Number of pages3
JournalOptics Letters
Issue number13
Publication statusPublished - 1 Jul 2012

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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