title: All-in-fiber optofluidic sensor fabricated by femtosecond laser assisted chemical etching.
abstract: An all-in-fiber prototype optofluidic device was fabricated by femtosecond laser irradiation and subsequent selective chemical wet etching. Horizontal and vertical microchannels can be flexibly created into an optical fiber to form a fluidic cavity with inlets/outlets. The fluidic cavity also functions as an optical Fabry-Perot cavity in which the filled liquid can be probed. The assembly-free microdevice exhibited a fringe visibility of 20 dB and was demonstrated for measurement of the refractive index of the filling liquids. The proposed all-in-fiber optofluidic micro device is attractive for chemical and biomedical sensing because it is flexible in design, simple to fabricate, mechanically robust, and miniaturized in size.
authors: Lei
authors: L
authors: Yuan
authors: Jie
authors: J
authors: Huang
authors: Xinwei
authors: X
authors: Lan
authors: Hanzheng
authors: H
authors: Wang
authors: Lan
authors: L
authors: Jiang
authors: Hai
authors: H
authors: Xiao
mesh_terms: D015374:Biosensing Techniques / Q000295:instrumentation; D004867:Equipment Design; D007834:Lasers; D046210:Microfluidic Analytical Techniques; D055616:Microtechnology / Q000379:methods; D055100:Optical Fibers; D055620:Optical Phenomena