In:
Review of Scientific Instruments, AIP Publishing, Vol. 82, No. 7 ( 2011-07-01)
Kurzfassung:
We introduce a highly compact fiber-optic Fabry-Pérot refractive index sensor integrated with a fluid channel that is fabricated directly near the tip of a 32 μm in diameter single-mode fiber taper. The focused ion beam technique is used to efficiently mill the microcavity from the fiber side and finely polish the end facets of the cavity with a high spatial resolution. It is found that a fringe visibility of over 15 dB can be achieved and that the sensor has a sensitivity of ∼1731 nm/RIU (refractive index units) and a detection limit of ∼5.78 × 10−6 RIU. This miniature integrated all-in-fiber optofludic sensor may find use in minimal-invasive biomedical applications.
Materialart:
Online-Ressource
ISSN:
0034-6748
,
1089-7623
Sprache:
Englisch
Verlag:
AIP Publishing
Publikationsdatum:
2011
ZDB Id:
209865-9
ZDB Id:
1472905-2
SSG:
11