| 简介 |
1. Modulator of infrared radiation, containing working optical element, made from n layers, where n ≥ 2, manganite A1-xBxMnO3, in which trivalent rare-earth metal A partially substituted odnoili a divalent metal in with substitution degree x, having effect magnitopropuskaniya, material manganite of each of the layers has its value temperature Curie, difference between maximum and minimum its values corresponds to temperature range of operation of modulator, located on transparent substrate of monocrystal and placed in source control magnetic field, characterized in that in working optical member between two adjacent layers of manganites is located additional layer, made from transparent in infrared spectrum dielectric magnetic material with vehicle, exceeding TC manganites, saturation magnetisation, exceeding magnetization layers of manganites, and coercive force, not exceeding coercive force manganites. ! 2. Modulator according to Claim 1, characterized in that as material is used additional layer of spinel ferrites SoFe2O4, or MnFe2O4, or grenades Nd3Fe5O12, or (Nd0.75La0.25) 3Fe5O12 thickness from 100 to 800 nm, with the Curie temperature higher than 530 to, coercive force less than 5 E, saturation magnetisation more than 5000 Gs.! 3. Modulator according to Claim 1, characterized in that as substrate material are used from monocrystals LaAlO3, SrTiO3 or ZrO2 (Y2O3). |
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