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Highly reflective coatings for micromechanical mirror arrays operating in the DUV and VUV spectral range

: Sandner, T.; Schmidt, J.U.; Schenk, H.; Lakner, H.; Gatto, A.; Yang, M.; Kaiser, N.; Braun, S.; Foltyn, T.; Leson, A.


Ürey, H. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
MOEMS Display and Imaging Systems III : 24-25 January 2005, San Jose, California. Proceedings
Bellingham/Wash.: SPIE, 2005 (SPIE Proceedings Series 5721)
ISBN: 0-8194-5695-0
Conference on MOEMS Display and Imaging Systems <3, 2005, San Jose/Calif.>
Fraunhofer IPMS ()
Fraunhofer IWS ()
Fraunhofer IOF ()
MOEMS; enhanced aluminum; highly reflective coating; DUV; mask-less lithography; PCB printing

High reflecting low-stress optical coatings for the next-generation of micro mechanical mirrors have been developed.
The optimized metal systems are applicable from VUV and DUV down to the UV and VIS spectral region and can be
integrated in the technology of MOEMS, such as spatial light modulators (SLM) and micro scanning mirrors. This
optimized metal designs enable to reconcile high optical performances with adequate mechanical properties and
convenient CMOS compatibility. Currently, micro-mirror arrays with enhanced highly reflective coatings for DUV
(A. = 193 nm) and VUV ()t 157 nm) exist as prototypes.