Fast detection of humidity with a subwavelength-diameter fiber taper coated with gelatin film Zhang, Lei ; Gu, Fuxing ; Lou, Jingyi ; Yin, Xuefeng ; Tong, Limin Abstract Publication: Optics Express Pub Date: August 2008 DOI: 10.1364/OE.16.013349 Bibcode: 2008OExpr..1613349Z