Film structure for filter and triple-band filter utilizing same
A film structure and filter technology, applied in the direction of optical filters, layered products, etc., can solve the problems of difficult film coating, increase the difficulty of film design, etc., achieve high mechanical strength, strong bonding performance, easy to use The effect of plating
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Embodiment 2
[0038] The wave system structure for the 1.064 μm, 1.57 μm, 7.7~10.5 μm three-band filter in this embodiment is:
[0039] (1.48H1.48L)^5|ZnSe|(LH)^5
[0040] Among them, H is ZnS film layer, L is YbF 3film layer. In the film system (HL)^5, the film layer adjacent to the ZnSe substrate is the first layer, and the outermost layer is the tenth layer. The geometric thickness values of the first to tenth layers are: the first layer is 96.4nm, the second layer 155.6nm, 3rd layer 167.5nm, 4th layer 105.3nm, 5th layer 243.5nm, 6th layer 53.6nm, 7th layer 280.4nm, 8th layer 53.2nm, 9th layer 163.5nm, 10th layer 80.5nm . In the film system (1.48H1.48L)^5, the film layer adjacent to the ZnSe substrate is the first layer, and the outermost layer is the tenth layer. The geometric thickness value of the first to tenth layers is: the first layer is 135.4nm, Layer 2 268.5nm, Layer 3 125.6nm, Layer 4 546.7nm, Layer 5 352.4nm, Layer 6 83.5nm, Layer 7 415.1nm, Layer 8 73.6nm, Layer 9 363...
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