The effect of symmetry on resonant and nonresonant photoresponses in a field-effect terahertz detector
文献类型：期刊论文
| 作者 | Sun, JD(孙建东); Qin, H(秦华) ; Lewis, RA; Yang, XX(杨昕昕); Sun, YF(孙云飞); Zhang, ZP(张志鹏); Li, XX(李欣幸); Zhang, XY(张晓渝); Cai, Y(蔡勇); Wu, DM(吴东岷)
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| 刊名 | APPLIED PHYSICS LETTERS
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| 出版日期 | 2015 |
| 卷号 | 106期号:3页码:5 |
| 通讯作者 | Qin, H (秦华) |
| 英文摘要 | The effect of the symmetries in the terahertz (THz) field distribution and the field-effect channel on THz photoresponse is examined. Resonant excitation of cavity plasmon modes and nonresonant self-mixing of THz waves are demonstrated in a GaN/AlGaN two-dimensional electron gas with symmetrically designed nanogates, antennas, and filters. We found that the self-mixing signal can be effectively suppressed by the symmetric design and the resonant response benefits from the residual asymmetry. The findings suggest that a single detector may provide both high sensitivity from the self-mixing mechanism and spectral resolution from the resonant response by optimizing the degree of geometrical and/or electronic symmetries. (C) 2015 AIP Publishing LLC. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.sinano.ac.cn/handle/332007/3444]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_纳米器件及相关材料研究部_秦华团队 |
| 推荐引用方式 GB/T 7714 | Sun, JD,Qin, H,Lewis, RA,et al. The effect of symmetry on resonant and nonresonant photoresponses in a field-effect terahertz detector[J]. APPLIED PHYSICS LETTERS,2015,106(3):5. |
| APA | Sun, JD.,Qin, H.,Lewis, RA.,Yang, XX.,Sun, YF.,...&Zhang, BS.(2015).The effect of symmetry on resonant and nonresonant photoresponses in a field-effect terahertz detector.APPLIED PHYSICS LETTERS,106(3),5. |
| MLA | Sun, JD,et al."The effect of symmetry on resonant and nonresonant photoresponses in a field-effect terahertz detector".APPLIED PHYSICS LETTERS 106.3(2015):5. |
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