The spin valve effect refers to the phenomenon whereby the resistance of a multilayer device depends on the relative orientation of magnetization in its ferromagnetic layers[1].Because the magnetization state encodes ...The spin valve effect refers to the phenomenon whereby the resistance of a multilayer device depends on the relative orientation of magnetization in its ferromagnetic layers[1].Because the magnetization state encodes information in various devices,such as sensors and memory elements,the spin valve effect forms the foundation of many spintronic applications[2].Ferromagnetic semiconductors(FS)can generate spin-polarized currents through their spin-split bands,enabling spin valve behavior in double spin filters[3]or hybrid spin filters[4].展开更多
The noncollinear acousto-optic tunable filter(AOTF)is a new type of spectral component that is developed according to the abnormal acousto-optic interaction principle.The spectral resolution and sidelobe of diffractio...The noncollinear acousto-optic tunable filter(AOTF)is a new type of spectral component that is developed according to the abnormal acousto-optic interaction principle.The spectral resolution and sidelobe of diffraction signal arc two important indices for evaluating the performance of AOTF.The basic principle of double-filtering using two AOTFs is described.The experimental results confirm that the double-filtering achieves a 40.4%to 83.2%improvement in the spectral resolution and from 9.5570 dB to 13.2407 dB suppression of the sidelobes.The results of this exploratory study demonstrate that double-filtering using two AOTFs has great potential for application in the field of the acousto-optic filtering.展开更多
基金supported by the National Natural Science Foundation of China(12374121,12304232,T2425029,and 12374129)the National Key Research and Development Program of China(2022YFA1405100)+5 种基金Anhui Provincial Major S&T Project(s202305a12020005)the China Postdoctoral Science Foundation(2023TQ0266,and 2024M753262)the Innovation Program for Quantum Science and Technology(2021ZD0302403)Anhui Provincial Natural Science Foundation(2408085J025)Kenji Watanabe and Takashi Taniguchi acknowledge the support from The Japan Society for the Promotion of Science(JSPS)KAKENHI(21H05233 and 23H02052)World Premier International Research Center Initiative(WPI),MEXT,Japan.
文摘The spin valve effect refers to the phenomenon whereby the resistance of a multilayer device depends on the relative orientation of magnetization in its ferromagnetic layers[1].Because the magnetization state encodes information in various devices,such as sensors and memory elements,the spin valve effect forms the foundation of many spintronic applications[2].Ferromagnetic semiconductors(FS)can generate spin-polarized currents through their spin-split bands,enabling spin valve behavior in double spin filters[3]or hybrid spin filters[4].
文摘The noncollinear acousto-optic tunable filter(AOTF)is a new type of spectral component that is developed according to the abnormal acousto-optic interaction principle.The spectral resolution and sidelobe of diffraction signal arc two important indices for evaluating the performance of AOTF.The basic principle of double-filtering using two AOTFs is described.The experimental results confirm that the double-filtering achieves a 40.4%to 83.2%improvement in the spectral resolution and from 9.5570 dB to 13.2407 dB suppression of the sidelobes.The results of this exploratory study demonstrate that double-filtering using two AOTFs has great potential for application in the field of the acousto-optic filtering.
