title: Direct phase probing and mapping via spintronic Michelson interferometry.
abstract: A spintronic approach is introduced to transform classic Michelson interferometry that probes the electromagnetic phase only. This method utilizes a nonlinear four-wave coherent mixing effect. A previously unknown striking relation between spin dynamics and the relative phase of electromagnetic waves is revealed. Spintronic Michelson interferometry allows direct probing of both the spin-resonance phase and the relative phase of electromagnetic waves via microspintronics. Thereby, it breaks new ground for cross-disciplinary applications with unprecedented capabilities, which we demonstrate via a powerful phase-resolved spin-resonance spectroscopy on magnetic materials and an on-chip technique for phase-resolved near-field microwave imaging.
authors.affiliation: Department of Physics and Astronomy, University of Manitoba, Winnipeg, Canada R3T 2N2.
authors.forename: A
authors.initials: A
authors.lastname: Wirthmann
authors.forename: Xiaolong
authors.initials: X
authors.lastname: Fan
authors.forename: Y S
authors.initials: YS
authors.lastname: Gui
authors.forename: K
authors.initials: K
authors.lastname: Martens
authors.forename: G
authors.initials: G
authors.lastname: Williams
authors.forename: J
authors.initials: J
authors.lastname: Dietrich
authors.forename: G E
authors.initials: GE
authors.lastname: Bridges
authors.forename: C-M
authors.initials: CM
authors.lastname: Hu