title: Hydrofluoric acid flow etching of low-loss subwavelength-diameter biconical fiber tapers.
authors.affiliation: Department of Electrical and Computer Engineering and the Institute for Optical Sciences,University of Toronto, Toronto, Ontario M5S3G4, Canada. ejzhang@princeton.edu
authors.forename: Eric J
authors.initials: EJ
authors.lastname: Zhang
authors.forename: Wesley D
authors.initials: WD
authors.lastname: Sacher
authors.forename: Joyce K S
authors.initials: JK
authors.lastname: Poon