摘要:
An apparatus and method for tunable generation of terahertz waves at room temperatures are provided. The apparatus for tunable terahertz generation comprises: (A) a terahertz antenna further comprising a magnon gain medium; (B) a means for generating the nonequilibrium magnons in the magnon gain medium; wherein the terahertz antenna is configured to emit generated terahertz photons; and (C) a means for tuning frequency of terahertz photons emitted by the terahertz antenna. The magnon gain medium is selected from the group consisting of: {a ferromagnetic semiconductor; a dilute magnetic semiconductor (DMS); a half-metallic ferromagnet (HMF); and a ferromagnetic conductor, with a gap in the density of states of the minority electrons around the Fermi energy}.
摘要:
An apparatus comprising a ferromagnetic conductive material including a magnon gain medium (MGM) and a tunnel junction coupled to the ferromagnetic conductive material are provided. The magnon gain medium (MGM) further comprises a conduction band that is split into two sub bands separated by an exchange energy gap, a first sub band having spin up, and a second sub band having spin down. The applied bias voltage is configured to shift the Fermi level of the external metallic contact with respect to the Fermi level of the ferromagnetic conductive material so that the injected electrons are configured to tunnel into the second sub band having spin down.
摘要:
A method of modulation terahertz radiation comprising: (A) generating Terahertz radiation by pumping nonequilibrium electrons into a Magnon Gain Medium (MGM), wherein propagation of nonequilibrium electrons in the MGM causes generation of nonequilibrium magnons, and wherein interaction between the nonequilibrium magnons causes generation of the Terahertz radiation; and (B) frequency modulating THz radiation generated in the MGM by applying longitudinal AC magnetic field, or by applying AC electrical field bias.
摘要翻译:一种调制太赫兹辐射的方法,包括:(A)通过将非平衡电子泵送到Magnon Gain Medium(MGM)中来产生太赫兹辐射,其中非平衡电子在MGM中的传播引起非平衡磁子的产生,并且其中非平衡磁子之间的相互作用导致产生 的太赫兹辐射; 和(B)通过施加纵向交流磁场或通过施加交流电场偏置在MGM中产生的频率调制THz辐射。
摘要:
An apparatus for generating ultra-high frequency sound waves with frequencies between (1 GHz-10 GHz) is proposed. The apparatus comprises a magnetic phonon-gain medium configured to generate high frequency non-equilibrium phonons by non-equilibrium magnons having the magnon velocity exceeding the sound velocity in the magnetic phonon-gain medium. The non-equilibrium magnons having the magnon velocity exceeding the sound velocity in the magnetic phonon-gain medium are generated by injected non-equilibrium electrons having spin opposite to the direction of magnetization of the magnetic phonon-gain medium. The apparatus further comprises a means for outputting the ultra-high frequency non-equilibrium phonons.
摘要:
An apparatus and method for generating modulated terahertz radiation are provided. The apparatus comprises: (A) a means for generating Terahertz radiation by pumping nonequilibrium electrons into Magnon Gain Medium (MGM); wherein the nonequilibrium electrons emit nonequilibrium magnons, and wherein interaction between nonequilibrium magnons in the Magnon Gain Medium (MGM) causes generation of Terahertz radiation; and (B) a means for modulating the generated Terahertz radiation. The modulating means further comprises: an AC magnetic field generator, or an AC electric field generator.
摘要翻译:提供了一种用于产生调制太赫兹辐射的装置和方法。 该设备包括:(A)通过将非平衡电子泵送到麦格纳增益介质(MGM)中来产生太赫兹辐射的装置; 其中非平衡电子发射非平衡磁子,并且其中Magnon Gain Medium(MGM)中的非平衡磁体之间的相互作用导致产生太赫兹辐射; 和(B)用于调制产生的太赫兹辐射的装置。 调制装置还包括:交流磁场发生器或交流电场发生器。
摘要:
A magnon laser comprising: a magnon gain medium (MGM) that supports generation of nonequilibrium magnons, and a means for generating nonequilibrium magnons in the MGM further comprising a means for pumping nonequilibrium electrons into the MGM. Propagation of nonequilibrium electrons in the MGM causes generation of nonequilibrium magnons. The MGM is selected from the group consisting of: {ferromagnetic semiconductor; ferromagnetic insulator; and ferromagnetic material}. The merging of nonequilibrium magnons causes generation of terahertz waves.
摘要:
An apparatus for generation of Terahertz radiation comprising: (A) a Magnon Gain Medium (MGM), wherein the MGM supports generation of nonequilibrium magnons; and (B) at least one magnon mirror (MM). The nonequilibrium magnons are generated in the MGM. Interaction between nonequilibrium magnons leads to generation of Terahertz photons.
摘要翻译:一种用于产生太赫兹辐射的装置,包括:(A)Magnon Gain Medium(MGM),其中MGM支持产生非平衡磁子; 和(B)至少一个磁反射镜(MM)。 非平衡磁体在米高梅产生。 非平衡磁体之间的相互作用导致太赫兹光子的产生。
摘要:
A method of tunable generation of terahertz radiation comprising: (A) providing a magnon gain medium; wherein the magnon gain medium supports generation of nonequilibrium magnons; (B) generating terahertz radiation in the magnon gain medium; and (C) tuning frequency of the terahertz radiation by causing changes in an external parameter. The substantial tuning of the frequency of the generated terahertz radiation can be achieved by applying an external magnetic field, and by causing changes in a value of the external magnetic field.
摘要:
An apparatus for generation of Terahertz radiation comprising: (A) a Magnon Gain Medium (MGM), wherein the MGM supports generation of nonequilibrium magnons; and (B) at least one magnon mirror (MM). The nonequilibrium magnons are generated in the MGM. Interaction between nonequilibrium magnons leads to generation of Terahertz photons.
摘要翻译:一种用于产生太赫兹辐射的装置,包括:(A)Magnon Gain Medium(MGM),其中MGM支持产生非平衡磁子; 和(B)至少一个磁反射镜(MM)。 非平衡磁体在米高梅产生。 非平衡磁体之间的相互作用导致太赫兹光子的产生。
摘要:
A magnon laser comprising: a Magnon Gain Medium, wherein the Magnon Gain Medium supports generation of nonequilibrium magnons, and a means for pumping nonequilibrium electrons into the Magnon Gain Medium. Propagation of nonequilibrium electrons in Magnon Gain Medium causes generation of nonequilibrium magnons. Magnon Gain Medium comprises ferromagnetic materials at room temperatures including the half-metallic ferromagnets.
摘要翻译:一种磁激子,其包括:Magnon Gain Medium,其中Magnon Gain Medium支持产生非平衡磁体,以及用于将非平衡电子泵送到Magnon Gain Medium中的装置。 Magnon Gain Medium中非平衡电子的传播导致产生非平衡磁子。 Magnon Gain Medium包括室温下的铁磁材料,包括半金属铁磁体。