Neumann, N.N.NeumannEbermann, M.M.EbermannGittler, E.E.GittlerMeinig, MarcoMarcoMeinigKurth, SteffenSteffenKurthHiller, KarlaKarlaHiller2022-03-112022-03-112010https://publica.fraunhofer.de/handle/publica/37020110.1109/ICSENS.2010.5690856In this paper we describe the design, the fabrication and the properties of tunable MEMS Fabry-Pérot (FP) filters for the long-wave infrared range (LWIR). Based on a mid-wave IR (MWIR) device, completely new optical and electromechanical designs have to be used to extend the spectral range to the LWIR. A new set of optical thin films with low and high refractive index materials and an additional third thin film with medium refractive index are introduced as well. A further approach is focused on covering both, the mid-wave and longwave IR range in one device to obtain dual-band FP filters which is reported too. Significant improvements towards reduced acceleration response were achieved using two springsuspended reflectors. ©2010 IEEE.enconference paper