Abstract
Finesse as high as 260 and peak transmission close to 98% at frequencies around 30 cm−1 are predicted at 10 K by coating the Perot-Fabry (PF) mirrors with a suitable thickness of High Tc (HTC) superconductor YBaCuO. In fact, Finesse will be limited by the lack of parallelism and the lack of perfect flatness of the mirrors to values around 100. These predictions are based upon phenomenological models for both the YBaCuO coating and the MgO support, i.e. from direct transmission measurements of MgO and YBaCuO in the Far IR, which had to be fitted by the models.
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Gerbaux, X., Hadni, A. & Josse, M. The possibility of new high-transmission, high finesse, Perot-Fabry interferometers for far ir spectroscopy. Int J Infrared Milli Waves 15, 775–782 (1994). https://doi.org/10.1007/BF02096575
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DOI: https://doi.org/10.1007/BF02096575