title: Leakage radiation interference microscopy.
abstract: We present a proof of principle for a new imaging technique combining leakage radiation microscopy with high-resolution interference microscopy. By using oil immersion optics it is demonstrated that amplitude and phase can be retrieved from optical fields, which are evanescent in air. This technique is illustratively applied for mapping a surface mode propagating onto a planar dielectric multilayer on a thin glass substrate. The surface mode propagation constant estimated after Fourier transformation of the measured complex field is well matched with an independent measurement based on back focal plane imaging.
authors.affiliation: Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Torino, Italy.
authors.forename: Emiliano
authors.initials: E
authors.lastname: Descrovi
authors.forename: Elsie
authors.initials: E
authors.lastname: Barakat
authors.forename: Angelo
authors.initials: A
authors.lastname: Angelini
authors.forename: Peter
authors.initials: P
authors.lastname: Munzert
authors.forename: Natascia
authors.initials: N
authors.lastname: De Leo
authors.forename: Luca
authors.initials: L
authors.lastname: Boarino
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Giorgis
authors.forename: Hans Peter
authors.initials: HP
authors.lastname: Herzig