DataVXSmallPaper
journal article·2021-11

Optically Controlled Ultrafast Terahertz Metadevices with Ultralow Pump Threshold (Small 44/2021)

Jing Lou, Xing Xu, Yindong Huang, Ying Yu, Jun Wang, Guangyou Fang, Jiangang Liang, Chunhai Fan, Chao Chang

Small· Volume 17· Issue 44
Publisher page
Source abstract

Abstract

Ultrafast Terahertz Metadevices In article number 2104275, Jiangang Liang, Chunhai Fan, Chao Chang, and co-workers present a germanium hybrid metallic metasurface under dual-stimulus control. Photoexcitation of germanium film enables 100% modulation depth of Fano resonance and ultrafast switching time within 10 ps. By adding current-bias, the pump threshold to modulate the metasurface is greatly reduced from 1600 to 200 μJ cm−2. Compared with single laser control, the terahertz amplitude modulation is increased by 56.3% under dual-stimulus function.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Metamaterials and Metasurfaces Applications · Terahertz technology and applications · Plasmonic and Surface Plasmon Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Physics Peking University Beijing 100871 China

Innovation Laboratory of Terahertz Biophysics National Innovation Institute of Defense Technology Beijing 100071 China

Air and Missile Defense College Air Force Engineering University Xi'an 710051 China

Key Laboratory of Electromagnetic Radiation and Sensing Technology Aerospace Information Research Institute Chinese Academy of Sciences Beijing 100094 China

School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules and Shanghai Key Laboratory for Nucleic Acids Chemistry and Nanomedicine Institute of Molecular Medicine Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai 200240 China

References

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