Circularly polarized terahertz radiation monolithically generated by cylindrical mesas of intrinsic Josephson junctions
Circularly polarized terahertz radiation monolithically generated by cylindrical mesas of intrinsic Josephson junctions
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DOI：
10.1063/1.5040159
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发表时间：
2018-07
影响因子：
4
通讯作者：
A. Elarabi;Y. Yoshioka;M. Tsujimoto;I. Kakeya
中科院分区：
文献类型：
--
作者：
A. Elarabi;Y. Yoshioka;M. Tsujimoto;I. Kakeya
本文报道了高温超导体Bi_2Sr_2CaCu_2O_（8 +δ）圆柱形梅萨结构的圆极化电磁波发射。圆极化发射的频率范围的圆柱形梅萨与缺口侧是400和430 GHz之间，这是更宽的贴片天线理论的预期。三个最大的发射强度被认为是由于基本的正交模式和圆偏振模式的激发。沿着圆极化发射的演示从截断边缘正方形台面，所获得的结果提供了各种各样的工程设计的紧凑和固态的电磁源，能够产生圆极化太赫兹wave.We报告的圆极化电磁波的发射从圆柱形梅萨结构的高温超导体Bi2Sr2CaCu2O8+δ。圆极化发射的频率范围的圆柱形梅萨与缺口侧是400和430 GHz之间，这是更宽的贴片天线理论的预期。三个最大的发射强度被认为是由于基本的正交模式和圆偏振模式的激发。沿着圆偏振发射的演示从截断边缘正方形台面，所获得的结果提供了各种各样的工程设计的紧凑型和固态电磁源，能够产生圆偏振太赫兹波。
We report emissions of circular polarized electromagnetic waves from cylindrically shaped mesa structures of the high-temperature superconductor Bi2Sr2CaCu2O8+δ. The frequency range of circularly polarized emission of a cylindrical mesa with notched sides is between 400 and 430 GHz, which is wider than expected by the patch antenna theory. Three maxima recognized in emission intensity are presumably attributed to excitations of fundamental orthogonal modes and circularly polarized modes. Along with the demonstration of circularly polarized emission from truncated edge square mesas, the obtained results provide a wide variety of engineering designs of compact and solid-state electromagnetic sources which are able to generate circularly-polarized terahertz waves.We report emissions of circular polarized electromagnetic waves from cylindrically shaped mesa structures of the high-temperature superconductor Bi2Sr2CaCu2O8+δ. The frequency range of circularly polarized emission of a cylindrical mesa with notched sides is between 400 and 430 GHz, which is wider than expected by the patch antenna theory. Three maxima recognized in emission intensity are presumably attributed to excitations of fundamental orthogonal modes and circularly polarized modes. Along with the demonstration of circularly polarized emission from truncated edge square mesas, the obtained results provide a wide variety of engineering designs of compact and solid-state electromagnetic sources which are able to generate circularly-polarized terahertz waves.