A. K. Rüßeler P. Gehrke G.-A. Hoffmann G. Schönsee A. Thiel M. Vitt A. Wienke D. Ristau Substrate-free miniaturized coarse wavelength division multiplexing filters Proceedings of the Optical Interference Coatings Conference 2022 Type: Zeitschriftenaufsatz (non-reviewed) Abstract