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학술대회 Field Enhancement Effect in Nano-electrodes for THz Generation and Detection
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저자
문기원, 이의수, 이일민, 한상필, 박경현
발행일
201609
출처
International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) 2016, pp.1-2
DOI
https://dx.doi.org/10.1109/IRMMW-THz.2016.7758403
협약과제
16ZR1600, 튜너블 테라헤르츠 트랜시버 기술 개발, 박경현
초록
Recently, nano-structures have been adopted for the photonics-based THz emitters and detectors to enhance their output power and detection sensitivity. The notable improvements have been attributed to the plasmon enhanced absorption. However, we found that the field enhancement at the extremities of the nano-structure dominates over the plasmon effect, may be maximized by considering nano-scale ultrafast carrier dynamics. In this work, we present experimental results which support our conclusions. By understanding the underlying physical processes, we may derive an optimized device design for the emission and detection of continuous-wave and pulsed THz radiation.
KSP 제안 키워드
Detection sensitivity, Field enhancement effect, Nano-electrodes, Nano-structures, Output power, Physical processes, Plasmon enhanced absorption, Pulsed THz, THz generation, THz radiation, Ultrafast carrier dynamics