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Cooled Infrared Dichroic Beamsplitters and Filters for the MIRI Spectrometer and Imager (5-29µm)

G J Hawkins, R E Sherwood, B M Barrett

Proc. OSA Technical Digest Optical Interference Coatings, WDPDP1, ISBN: 1-55752-841-1 (2007)


The spectral design and fabrication of cooled (7K) mid-infrared dichroic beamsplitters and bandpass filter coatings for the MIRI spectrometer and imager are described. Design methods to achieve the spectral performance and coating materials are discussed.

DOI: 10.1364/OIC.2007.WDPDP1