title: Supported microfiber loops for optical sensing.
abstract: We demonstrate refractive-index sensors based on copper-rod- supported microfiber loops. Due to the robustness of the supported loop structure and the flexibility of obtaining critical coupling within a broad spectral range, these microfiber loops show high sensitivity and high stability for sensing in both low- and high-concentration solutions with estimated sensitivity of refractive-index measurement up to 1.8 x 10(-5).
authors.affiliation: Department of Optical Engineering, State Key Laboratory of Modern Optical Instrumentation, Zhejiang University,Hangzhou 310027, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Guo
authors.forename: Limin
authors.initials: L
authors.lastname: Tong
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D008027:Light; D008904:Miniaturization; D055095:Optics and Photonics / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*; D012680:Sensitivity and Specificity; D014159:Transducers