title: Parallel self-mixing imaging system based on an array of vertical-cavity surface-emitting lasers.
abstract: In this paper we investigate the feasibility of a massively parallel self-mixing imaging system based on an array of vertical-cavity surface-emitting lasers (VCSELs) to measure surface profiles of displacement, distance, velocity, and liquid flow rate. The concept of the system is demonstrated using a prototype to measure the velocity at different radial points on a rotating disk, and the velocity profile of diluted milk in a custom built diverging-converging planar flow channel. It is envisaged that a scaled up version of the parallel self-mixing imaging system will enable real-time surface profiling, vibrometry, and flowmetry.
authors.affiliation: School of Information Technology and Electrical Engineering, The University of Queensland, St. Lucia, Queensland 4072, Brisbane, Australia.
authors.forename: John R
authors.initials: JR
authors.lastname: Tucker
authors.forename: Johnathon L
authors.initials: JL
authors.lastname: Baque
authors.forename: Yah Leng
authors.initials: YL
authors.lastname: Lim
authors.forename: Andrei V
authors.initials: AV
authors.lastname: Zvyagin
authors.forename: Aleksandar D
authors.initials: AD
authors.lastname: Rakić