杂化模式二聚体结构光电子发射研究
Study of Photoelectron Emission in Hybrid Mode Dimer Structures
摘要: 基于金属纳米结构中的等离激元效应可以将周围电场局域在纳米级空间尺度范围中，并且有着出色的电场增强的能力，在增强光传导效应、提高超快电子源亮度、提升太阳能电池转化效率等方面都有着出色的潜力。本文使用非对称金纳米二聚体结构进行模拟，对等离激元杂化模式对光电子发射进行研究，发现金纳米短棒占据二聚体结构场增强的主导，当二聚体结构呈成键模式，短棒的Ez分量要强于长棒，反键模式中长棒的Ez分量要超过短棒，并将金纳米二聚体结构的间隙增加至200 nm时，在双棒的耦合作用足够小的情况下，分别对二者的近场进行研究，发现金纳米长棒中的Ez/E约是短棒的4倍左右，金纳米长棒的光电子产额是短棒的十倍左右。
Abstract: Based on the plasmon effect in metal nanostructures, the surrounding electric field can be localized within the nanometer-scale spatial range, with excellent field enhancement capabilities. This has great potential in enhancing light conduction effects, improving the brightness of ultrafast electron sources, and increasing the efficiency of solar cell conversion. In this study, asymmetric gold nanorod dimer structures were simulated to investigate the plasmon hybrid mode on photoelectron emission. It was found that the gold nanorod played a dominant role in the field enhancement of the dimer structure, with the short rod having a stronger Ez component than the long rod in the bonding mode, while in the anti-bonding mode, the Ez component of the long rod exceeded that of the short rod. When the gap between the gold nanorod dimer structures was increased to 200 nm, and the coupling effect between the two rods was sufficiently small, the near-field of each rod was studied. It was observed that the Ez/E ratio in the gold nanorod long rod was about four times that of the short rod, and the photoelectron yield of the gold nanorod long rod was approximately ten times that of the short rods.
文章引用：张涵博, 季博宇. 杂化模式二聚体结构光电子发射研究[J]. 应用物理, 2024, 14(4): 131-141. https://doi.org/10.12677/app.2024.144016

参考文献

[1] Keathley, P.D., Sell, A., Putnam, W.P., et al. (2013) Strong-Field Photoemission from Silicon Field Emitter Arrays. Annalen der Physik, 525, 144-150. [Google Scholar] [CrossRef] 
[2] Musumeci, P., Cultrera, L., Ferrario, M., et al. (2010) Multiphoton Photoemission from a Copper Cathode Illuminated by Ultrashort Laser Pulses in an rf Photoinjector. Physical Review Letters, 104, Article ID: 084801. [Google Scholar] [CrossRef] 
[3] Dowell, D.H, Bazarov, I., Dunham, B., et al. (2010) Cathode R&D for Future Light Sources. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 622, 685-697. [Google Scholar] [CrossRef] 
[4] Orendorff, C.J., Sau, T.K. and Murphy, C.J. (2006) Shape-Dependent Plasmon-Resonant Gold Nanoparticles. Small, 2, 636-639. [Google Scholar] [CrossRef] [PubMed]
[5] Sharma, V., Verma, D. and Okram, G.S. (2019) Influence of Surfactant, Particle Size and Dispersion Medium on Surface Plasmon Resonance of Silver Nanoparticles. Journal of Physics: Condensed Matter, 32, Article ID: 145302. [Google Scholar] [CrossRef] 
[6] Hommelhoff, P., Kling, M.F. (2015) Attosecond Nanophysics: From Basic Science to Applications. John Wiley & Sons, Hoboken. [Google Scholar] [CrossRef] 
[7] Nordlander, P., Oubre, C., Prodan, E., Li, K. and Stockman, M.I. (2004) Plasmon Hybridization in Nanoparticle Dimers. Nano Letters, 4, 899-903. [Google Scholar] [CrossRef] 
[8] Prodan, E., Radloff, C., Halas, N.J. and Nordlander, P. (2003) Hybridization Model for the Plasmon Response of Complex Nanostructures. Science, 302, 419-422. [Google Scholar] [CrossRef] [PubMed]
[9] Wang, L., Ji, B., Xu, Y., et al. (2023) Analysis of Dephasing Time of Plasmonic Hybridization Modes Using a Quasi-Normal Mode Method. Journal of the Optical Society of America B, 40, 178-186. [Google Scholar] [CrossRef] 
[10] Sun, Q., Yu, H., Ueno, K.,et al. (2016) Dissecting the Few-Femtosecond Dephasing Time of Dipole and Quadrupole Modes in Gold Nanoparticles Using Polarized Photoemission Electron Microscopy. ACS Nano, 10, 3835-3842. [Google Scholar] [CrossRef] [PubMed]
[11] Biagioni, P., Huang, J.S., Duò, L., et al. (2009) Cross Resonant Optical Antenna. Physical Review Letters, 102, Article ID: 256801. [Google Scholar] [CrossRef] 
[12] Kim, S., Jin, J., Kim, Y.-J., et al. (2008) High-Harmonic Generation by Resonant Plasmon Field Enhancement. Nature, 453, 757-760. [Google Scholar] [CrossRef] [PubMed]
[13] Hutter, E. and Fendler, J.H. (2004) Exploitation of Localized Surface Plasmon Resonance. Advanced Materials, 16, 1685-1706. [Google Scholar] [CrossRef] 
[14] Zhang, X., Chen, Y.L., Liu, R.S., et al. (2013) Plasmonic Photocatalysis. Reports on Progress in Physics, 76, Article ID: 046401. [Google Scholar] [CrossRef] [PubMed]
[15] Zhang, N., et al. (2015) Ultrabroadband Metasurface for Efficient Light Trapping and Localization: A Universal Surface-Enhanced Raman Spectroscopy Substrate for “All” Excitation Wavelengths. Advanced Materials Interfaces, 2, Article ID: 1500142. [Google Scholar] [CrossRef] 
[16] Wang, H., Brandl, D.W., et al. (2007) Plasmonic Nanostructures: Artificial Molecules. Accounts of Chemical Research, 40, 53-62. [Google Scholar] [CrossRef] [PubMed]
[17] Liu, Z., et al. (2015) Automatically Acquired Broadband Plasmonic-Metamaterial Black Absorber during the Metallic Film-Formation. ACS Applied Materials & Interfaces, 7, 4962-4968. [Google Scholar] [CrossRef] [PubMed]
[18] Rohmer, M., Bauer, M., Leissner, T., et al. (2010) Time Resolved Photoelectron Nano Spectroscopy of Individual Silver Particles: Perspectives and Limitations. Physica Status Solidi B, 247, 1132-1138. [Google Scholar] [CrossRef] 
[19] Dombi, P.T., Hörl, A., Rácz, P.T., et al. (2013) Ultrafast Strong-Field Photoemission from Plasmonic Nanostructures. Nano Letters, 13, 674-678. [Google Scholar] [CrossRef] [PubMed]
[20] Nakamura, T., Hirata, N., Sekino, Y., et al. (2010) Photoemission Enhancement Induced by Near-Fields via Local Surface Plasmon Resonance of Silver Nanostructures on a Hydrogen-Terminated Si(111) Surface. The Journal of Physical Chemistry C, 114, 16270-16277. [Google Scholar] [CrossRef] 
[21] Hobbs, R.G., Yang, Y., Fallahi, A., Keathley, P.D., De Leo, E., Kartner, F.X., Graves, W.S. and Berggren, K.K. (2014) ACS Nano, 8, 11474-11482. [Google Scholar] [CrossRef] [PubMed]
[22] Ropers, C., Solli, D.R., Schulz, C.P., Lienau, C. and Elsaesser, T. (2007) Physical Review Letters, 98, Article ID: 043907. [Google Scholar] [CrossRef] 
[23] Schertz, F., Schmelzeisen, M., Mohammadi, R., Kreiter, M., Elmers, H.J. and Schonhense, G. (2012) Near Field of Strongly Coupled Plasmons: Uncovering Dark Modes. Nano Letters, 12, 1885-1890. [Google Scholar] [CrossRef] [PubMed]
[24] Li, Y., Peng, S., Wang, L., et al. (2023) Enhanced Photoelectron Emission from Dark Plasmon Mode in Gold Nanoring. Chinese Journal of Physics, 85, 104-111. [Google Scholar] [CrossRef] 
[25] Tsai, C.-Y., Wu, C.-Y., Chang, K.-H., et al. (2013) Slab Thickness Dependence of Localized Surface Plasmon Resonance Behavior in Gold Nanorings. Plasmonics, 8, 1011-1016. [Google Scholar] [CrossRef] 
[26] Johnson, P.B. and Christy, R.W. (1972) Optical Constants of the Noble Metals. Physical Review B, 6, 4370-4379. [Google Scholar] [CrossRef] 
[27] Zhang, J., Xu, Y.-G., Zhang, J.-X., Guan, L.-L. and Li, Y.-F. (2020) Bright-Dark Mode Coupling Model of Plasmons. Chinese Physics Letters, 37, Article ID: 037101. [Google Scholar] [CrossRef] 
[28] 季博宇. 飞秒局域等离激元相干控制的研究[D]: [博士学位论文]. 长春: 长春理工大学, 2017.

为你推荐