Terahertz nano-spectroscopy with resonant scattering probes

被引：0
|
作者：
Siday, Tom [1 ]
Hale, Lucy L. [1 ]
Hermans, Rodolfo, I [1 ]
Mitrofanov, Oleg [1 ]
机构：
[1] UCL, London, England
来源：
2020 45TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2020年
关键词：
D O I：
10.1109/IRMMW-THZ46771.2020.9370491
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We propose and demonstrate tunable resonant scattering probes for terahertz (THz) near-field microscopy, using sharp indium tips fabricated to the tine of a quartz tuning fork. We find the antenna resonance of the indium tips can be tuned by altering the tip length, which we support with numerical models. We also demonstrate the indium tips can provide nanoscale field confinement at the tip apex, with spatial resolution better than 100 nm.
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页数：2
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