Study on Surface-Enhanced Infrared Absorption Characteristics of Double-Layer Petal-Structure Optical Antenna

Xingzheng Shi; Chun Li; Xiaoyan Fan; Guang Yuan; Wanmei Sun; Lin Xiao; Zhedong Wang; Shaodong Wang

doi:10.3788/LOP220870

Journals >Laser & Optoelectronics Progress >Volume 60 >Issue 1 >Page 0124001 > Article

Laser & Optoelectronics Progress
Vol. 60, Issue 1, 0124001 (2023)

Study on Surface-Enhanced Infrared Absorption Characteristics of Double-Layer Petal-Structure Optical Antenna

Xingzheng Shi¹, Chun Li^1、*, Xiaoyan Fan², Guang Yuan¹, Wanmei Sun¹, Lin Xiao¹, Zhedong Wang¹, and Shaodong Wang¹

Author Affiliations

¹Optics and Optoelectronics Laboratory of Qingdao, College of Physics and Optoelectronic Engineering, Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, Shandong , China

²College of Mathematics and Physics, Qingdao University of Science and Technology, Qingdao 266061, Shandong , China

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DOI: 10.3788/LOP220870 Cite this Article Set citation alerts

Xingzheng Shi, Chun Li, Xiaoyan Fan, Guang Yuan, Wanmei Sun, Lin Xiao, Zhedong Wang, Shaodong Wang. Study on Surface-Enhanced Infrared Absorption Characteristics of Double-Layer Petal-Structure Optical Antenna[J]. Laser & Optoelectronics Progress, 2023, 60(1): 0124001 Copy Citation Text

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Fig. 1. Antenna model and structure parameter. (a) Top view of antenna; (b) front view of antenna; (c) schematic diagram of simulation; (d) 3D model of antenna

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Influence of antenna parameters on infrared enhancement characteristics of antenna. (a), (b), (c), (d) are fitting curves of E/E0 at resonant condition and resonant wavelength with different l, w2,w1, and d, respectively

Fig. 2. Influence of antenna parameters on infrared enhancement characteristics of antenna. (a), (b), (c), (d) are fitting curves of

|E / E_{0}|

at resonant condition and resonant wavelength with different l, w₂,_{w₁, and d, respectively}

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Fig. 3. Influence of incident light on infrared enhancement characteristics of antenna

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Fig. 4. Model of double-layer antenna. (a) 3D structure diagram; (b) section structure diagram

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Fig. 5. Fitting curves of

|E / E_{0}|

at resonant condition and resonant wavelength with different h

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Fig. 6. Variation of

|E / E_{0}|

with incident wavelength in different rotation angles of lower antenna

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Fig. 7. Definition of coupling and interference enhancement with double-layer optical antenna structure. (a) Curve of

|E / E_{0}|

in different h at same point with/without upper antenna; (b) projection of surface field intensity ratio difference ∆E on XZ plane

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