title: Note: A resonating reflector-based optical system for motion measurement in micro-cantilever arrays.
abstract: A robust, compact optical measurement unit for motion measurement in micro-cantilever arrays enables development of portable micro-cantilever sensors. This paper reports on an optical beam deflection-based system to measure the deflection of micro-cantilevers in an array that employs a single laser source, a single detector, and a resonating reflector to scan the measurement laser across the array. A strategy is also proposed to extract the deflection of individual cantilevers from the acquired data. The proposed system and measurement strategy are experimentally evaluated and demonstrated to measure motion of multiple cantilevers in an array.
authors.affiliation: Department of Instrumentation and Applied Physics, Indian Institute of Science, Bangalore 560012, India.
authors.forename: P
authors.initials: P
authors.lastname: Sathishkumar
authors.affiliation: Department of Instrumentation and Applied Physics, Indian Institute of Science, Bangalore 560012, India.
authors.forename: P
authors.initials: P
authors.lastname: Punyabrahma
authors.affiliation: Department of Instrumentation and Applied Physics, Indian Institute of Science, Bangalore 560012, India.
authors.forename: R Sri Muthu
authors.initials: RS
authors.lastname: Mrinalini
authors.affiliation: Department of Instrumentation and Applied Physics, Indian Institute of Science, Bangalore 560012, India.
authors.forename: G R
authors.initials: GR
authors.lastname: Jayanth
mesh_terms: D060328:Magnetic Phenomena; D055616:Microtechnology / Q000295:instrumentation*; D009038:Motion; D055096:Optical Devices