Self-Referencing in Optical-Fiber Surface Plasmon Resonance Sensors

Current status of micro- and nano-structured optical fiber sensors

“…For this purpose, the fiber cladding can be completely or partially removed by chemical etching [24], precise flame controlling [43], or polishing. An alternative that uses evanescent waves is tapering a fiber, which is prepared by stretching the fiber while it is heated with the flame touch [30].…”

“…Hence a temperature correction is required because a temperature variation of 1 • C in an aqueous solution is associated with a change in its refractive index in the order of the detectable signal for SPR sensors [43,58]. Zhang et al measured the temperature-related resonance wavelength change in an SPR sensor [43].…”

“…Measurement of the difference in reflectance at two wavelengths improves the sensitivity almost two fold, 5.2 × 10 −4 RIU [72], as shown in Table 4 [43,66,67,[69][70][71][72][73][74][75][76][77][78][79][80].…”

Fiber-optic surface plasmon resonant sensor with low-index anti-oxidation coating

“…Bimetallic combination is a kind of tradeoff using both the higher accuracy of the silver film and the better chemical stability of the gold film [14] . In most papers, dielectric film is coated to modulate the sensing range of the sensor [18,19] or for specific measurement (temperature/humidity) [20,21] . However, the effects of the dielectric film on the sensitivity and shape of the resonant dip have not been studied.…”

Fiber optic chip for fully-guided Raman iterrogation of molecular adsorbates.

“…As reported in the literature, the core of an optical fiber may be exposed by a chemical etching process or by a precisely controlled flame [40]. In this work we use a lapping process by which the cladding is slowly polished away exposing the core [14,[41][42].…”