Please wait a minute...
Chin. Phys. B, 2022, Vol. 31(3): 034201    DOI: 10.1088/1674-1056/ac1930

Multi-frequency focusing of microjets generated by polygonal prisms

Yu-Jing Yang(杨育静), De-Long Zhang(张德龙), and Ping-Rang Hua(华平壤)
School of Precision Instruments and Opto-electronics Engineering, and Key Laboratory of Optoelectronic Information Science&Technology(Ministry of Education), Tianjin University, Tianjin 300072, China
Abstract  We systematically investigate the power distribution characteristics of microjets generated by prismatic scatterers with different shapes at sub-THz region (λ = 8.57 mm). Among these prismatic scatterers, the hexagonal-type one shows better focusing feature than the others. Aiming at the hexagonal-type one, we propose a double-layer scatterer composed of a Teflon hexagonal prism as an outer layer and a semiconductor cuboid as an inner layer. Aiming at the double-layer scatterer, we further study the effects of refractive index, size, and shape of the inner cuboid on microjet's features. The study allows us to present an optimized double-layer scatterer, which has a side length λ /2 (λ) and a refractive index 2.0 (1.4) for the inner (outer) layer. We show that the optimized scatterer can produce an ultra-strong, ultra-narrow microjet with a power enhancement of ~30 and a full width at half maximum (FWHM) of ~0.26λ, and the microjet is just located at the output face. The microjet keeps compact within the distance range of λ from the output face. These features and effects are explained from the viewpoint of ray optics theory. According to the optimized double-layer scatterer, we further study the multi-frequency focusing features of the microjets, and find that the microjet remains good features at harmonic frequencies 2f0 and 3f0. In addition, we investigate the effect of an Au sphere presence in the center of the microjet on the power distribution. The results show that a spherical dark spot with a size similar to that of the Au sphere emerges in the area where the Au sphere is placed. The feature can be used to measure the size of a metallic particle.
Keywords:  photonic microjet      hexagonal prism      harmonical frequencies      localized surface plasmon resonance  
Received:  08 June 2021      Revised:  23 July 2021      Accepted manuscript online:  30 July 2021
PACS:  42.25.Bs (Wave propagation, transmission and absorption)  
  42.25.Fx (Diffraction and scattering)  
  42.50.St (Nonclassical interferometry, subwavelength lithography)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61875148).
Corresponding Authors:  De-Long Zhang, Ping-Rang Hua     E-mail:;

Cite this article: 

Yu-Jing Yang(杨育静), De-Long Zhang(张德龙), and Ping-Rang Hua(华平壤) Multi-frequency focusing of microjets generated by polygonal prisms 2022 Chin. Phys. B 31 034201

[1] Zhang S, Wei K, Xiao Y, Ma X H, Zhang Y C, Liu G G, Lei T M, Zheng Y K, Huang S and Wang N 2018 Chin. Phys. B 27 097309
[2] Liu Z W, Lee H, Xiong Y, Sun C and Zhang X 2007 Science 315 1686
[3] Tapashree R, Edward T F and Nikolay I Z 2013 Opt. Express 21 7577
[4] Darafsheh A 2017 Opt. Lett. 42 735
[5] Darafsheh A, Guardiola C, Palovcak A, Finlay J C and Carabe A 2015 Opt. Lett. 40 5
[6] Chen L, Zhou Y, Wu M and Hong M 2018 Opto-Electron. Adv. 1 7000101
[7] Zhen Z, Huang Y, Feng Y, Shen Y and Li Z 2019 Opt. Express 27 9178
[8] Poteet A, Zhang X, Nagai H and Chang C 2018 Nanotechnology 29 075204
[9] Wang Z, Guo W, Li L, Luk'yanchuk B, Khan A, Liu Z, Chen Z and Hong M 2011 Nat. Commun. 2 218
[10] Pacheco-Peña V, Beruete M, Minin I V and Minin O V 2014 Appl. Phys. Lett. 105 3966
[11] Pacheco-Pea V, Beruete M, Minin I V and Minin O V 2015 Opt. Lett. 40 245
[12] Kelly K L, Coronado E, Zhao L L and Schatz G C 2003 J. Phys. Chem. B 107 668
[13] Miller M and Lazarides A 2005 J. Phys. Chem. B 109 21556
[14] Jensen T R, Duval M L, Kelly L, Lazarides A, Schatz G C and Van Duyne R P 1999 J. Phys. Chem. B 103 9846
[15] McFarland A D and Van Duyne R P 2003 Nano Lett. 3 1057
[1] A multi-band and polarization-independent perfect absorber based on Dirac semimetals circles and semi-ellipses array
Zhiyou Li(李治友), Yingting Yi(易颖婷), Danyang Xu(徐丹阳), Hua Yang(杨华), Zao Yi(易早), Xifang Chen(陈喜芳), Yougen Yi(易有根), Jianguo Zhang(张建国), and Pinghui Wu(吴平辉). Chin. Phys. B, 2021, 30(9): 098102.
[2] Optical absorption tunability and local electric field distribution of gold-dielectric-silver three-layered cylindrical nanotube
Ye-Wan Ma(马业万), Zhao-Wang Wu(吴兆旺), Yan-Yan Jiang(江燕燕), Juan Li(李娟), Xun-Chang Yin(尹训昌), Li-Hua Zhang(章礼华), and Ming-Fang Yi(易明芳). Chin. Phys. B, 2021, 30(11): 114207.
[3] Controlled plasmon-enhanced fluorescence by spherical microcavity
Jingyi Zhao(赵静怡), Weidong Zhang(张威东), Te Wen(温特), Lulu Ye(叶璐璐), Hai Lin(林海), Jinglin Tang(唐靖霖), Qihuang Gong(龚旗煌), and Guowei Lyu(吕国伟). Chin. Phys. B, 2021, 30(11): 114215.
[4] Photocurrent improvement of an ultra-thin silicon solar cell using the localized surface plasmonic effect of clustering nanoparticles
F Sobhani, H Heidarzadeh, H Bahador. Chin. Phys. B, 2020, 29(6): 068401.
[5] Selective enhancement of green upconversion luminescence of Er-Yb: NaYF4 by surface plasmon resonance of W18O49 nanoflowers and applications in temperature sensing
Ang Li(李昂), Jin-Lei Wu(吴金磊), Xue-Song Xu(许雪松), Yang Liu(刘洋), Ya-Nan Bao(包亚男), Bin Dong(董斌). Chin. Phys. B, 2018, 27(9): 097301.
[6] Subwavelength asymmetric Au-VO2 nanodisk dimer for switchable directional scattering
Han-Mou Zhang(张汉谋), Wu-Yun Shang(尚武云), Hua Lu(陆华), Fa-Jun Xiao(肖发俊), Jian-Lin Zhao(赵建林). Chin. Phys. B, 2018, 27(11): 117301.
[7] Ultrasensitive nanosensors based on localized surface plasmon resonances: From theory to applications
Wen Chen(陈文), Huatian Hu(胡华天), Wei Jiang(姜巍), Yuhao Xu(徐宇浩), Shunping Zhang(张顺平), Hongxing Xu(徐红星). Chin. Phys. B, 2018, 27(10): 107403.
[8] Optical interaction between one-dimensional fiber photonic crystal microcavity and gold nanorod
Yang Yu(于洋), Ting-Hui Xiao(肖廷辉), Zhi-Yuan Li(李志远). Chin. Phys. B, 2018, 27(1): 017301.
[9] Effects of thickness & shape on localized surface plasmon resonance of sexfoil nanoparticles
Yan Chen(陈艳), Xianchao Liu(刘贤超), Weidong Chen(陈卫东), Zhengwei Xie(谢征微), Yuerong Huang(黄跃容), Ling Li(李玲). Chin. Phys. B, 2017, 26(1): 017807.
[10] Tunable multiple plasmon resonances and local field enhancement of nanocrescent/nanoring structure
Wang Bin-Bing (王彬兵), Zhou Jun (周骏), Chen Dong (陈栋), Fang Yun-Tuan (方云团), Chen Ming-Yang (陈明阳). Chin. Phys. B, 2015, 24(8): 087301.
[11] The enhancement of 21.2%-power conversion efficiency in polymer photovoltaic cells by using mixed Au nanoparticles with a wide absorption spectrum of 400 nm-1000 nm
Hao Jing-Yu (郝敬昱), Xu Ying (徐颖), Zhang Yu-Pei (张玉佩), Chen Shu-Fen (陈淑芬), Li Xing-Ao (李兴鳌), Wang Lian-Hui (汪联辉), Huang Wei (黄维). Chin. Phys. B, 2015, 24(4): 045201.
[12] Deep-ultraviolet surface plasmon resonance of Al and Alcore/Al2O3shell nanosphere dimers for surface-enhanced spectroscopy
Ci Xue-Ting (慈雪婷), Wu Bo-Tao (吴伯涛), Song Min (宋敏), Chen Geng-Xu (陈耿旭), Liu Yan (刘岩), Wu E (武愕), Zeng He-Ping (曾和平). Chin. Phys. B, 2014, 23(9): 097303.
[13] Fano-like resonance characteristics of asymmetric Fe2O3@Au core/shell nanorice dimer
Wang Bin-Bing (王彬兵), Zhou Jun (周骏), Zhang Hao-Peng (张昊鹏), Chen Jin-Ping (陈金平). Chin. Phys. B, 2014, 23(8): 087303.
[14] High-order plasmon resonances in an Ag/Al2O3 core/shell nanorice
Chen Li (陈立), Wei Hong (魏红), Chen Ke-Qiu (陈克求), Xu Hong-Xing (徐红星). Chin. Phys. B, 2014, 23(2): 027303.
[15] Influence of polarization direction, incidence angle, and geometry on near-field enhancement in two-layered gold nanowires
Wu Da-Jian(吴大建), Jiang Shu-Min(蒋书敏), and Liu Xiao-Jun(刘晓峻) . Chin. Phys. B, 2012, 21(7): 077803.
No Suggested Reading articles found!