title: Note: Automated optical focusing on encapsulated devices for scanning light stimulation systems.
abstract: Recently, a scanning light stimulation system with an automated, adaptive focus correction during the measurement was introduced. Here, its application on encapsulated devices is discussed. This includes the changes an encapsulating optical medium introduces to the focusing process as well as to the subsequent light stimulation measurement. Further, the focusing method is modified to compensate for the influence of refraction and to maintain a minimum beam diameter on the sample surface.
authors.affiliation: University of Duisburg-Essen, Faculty of Engineering, NST and CENIDE, Bismarckstr. 81, 47057 Duisburg, Germany.
authors.forename: L A
authors.initials: LA
authors.lastname: Bitzer
authors.affiliation: University of Duisburg-Essen, Faculty of Engineering, NST and CENIDE, Bismarckstr. 81, 47057 Duisburg, Germany.
authors.forename: N
authors.initials: N
authors.lastname: Benson
authors.affiliation: University of Duisburg-Essen, Faculty of Engineering, NST and CENIDE, Bismarckstr. 81, 47057 Duisburg, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Schmechel