脉冲激光改性金属纳米薄膜的等离子体特性

孙文峰; 洪瑞金; 陶春先; 张大伟

doi:doi:10.3788/CJL202047.0103001

中国激光, 2020, 47 (1): 0103001, 网络出版: 2020-01-09

脉冲激光改性金属纳米薄膜的等离子体特性下载： 1771次

Pulsed-Laser-Modified Plasmon Properties of Metal Nanofilms

孙文峰 ¹洪瑞金 ^1,2,*陶春先 ^1,2张大伟 ^1,2

作者单位

¹ 上海理工大学光电信息与计算机工程学院, 上海 200093

² 教育部光学仪器与系统工程研究中心, 上海市现代光学系统重点实验室, 上海 200093

图 & 表

图 1. 实验过程示意图

Fig. 1. Schematic of experimental process

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图 2. Ag、Cu、Al三种薄膜在激光辐照前后的XRD图谱

Fig. 2. XRD patterns of Ag, Cu,and Al thin films before and after laser irradiation

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图 3. Ag、Cu、Al三种薄膜在激光辐照前后的AFM图

Fig. 3. AFM images of Ag, Cu, and Al thin films before and after laser irradiation

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图 4. Ag、Cu、Al三种薄膜在激光辐照前后的RMS表面粗糙度与激光扫描速率的关系

Fig. 4. RMS surface roughness of Ag, Cu, and Al thin films as a function of laser scanning speed before and after laser irradiation

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图 5. Ag、Cu、Al三种薄膜在激光辐照前后的吸收图谱。(a)三种薄膜在激光辐照前的吸收图谱;(b) Ag薄膜经激光辐照后在不同扫描速率下的吸收图谱;(c) Cu薄膜经激光辐照后在不同扫描速率下的吸收图谱;(d) Al薄膜经激光辐照后在不同扫描速率下的吸收图谱

Fig. 5. Absorption spectra of Ag, Cu, and Al thin films before and after laser irradiation. (a) Absorption spectra of Ag, Cu, and Al thin films before laser irradiation; (b) absorption spectra of Ag thin film at different scanning speeds after laser irradiation; (c) absorption spectra of Cu thin film at different scanning speeds after laser irradiation; (d) absorption spectra of Al film at different scanning speeds after laser irradiation

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图 6. Ag、Cu、Al三种薄膜在激光辐照前后的SERS图谱

Fig. 6. SERS spectra of Ag, Cu,and Al thin films before and after laser irradiation

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图 7. 采用FDTD仿真得到的Ag、Cu、Al三种薄膜在激光辐照前后的电场强度

Fig. 7. Electric-field intensities of Ag, Cu, and Al thin films before and after laser irradiation obtained from FDTD simulations

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孙文峰, 洪瑞金, 陶春先, 张大伟. 脉冲激光改性金属纳米薄膜的等离子体特性[J]. 中国激光, 2020, 47(1): 0103001. Wenfeng Sun, Ruijin Hong, Chunxian Tao, Dawei Zhang. Pulsed-Laser-Modified Plasmon Properties of Metal Nanofilms[J]. Chinese Journal of Lasers, 2020, 47(1): 0103001.

脉冲激光改性金属纳米薄膜的等离子体特性下载： 1771次

图 1. 实验过程示意图

Fig. 1. Schematic of experimental process

图 2. Ag、Cu、Al三种薄膜在激光辐照前后的XRD图谱

Fig. 2. XRD patterns of Ag, Cu,and Al thin films before and after laser irradiation

图 3. Ag、Cu、Al三种薄膜在激光辐照前后的AFM图

Fig. 3. AFM images of Ag, Cu, and Al thin films before and after laser irradiation

图 4. Ag、Cu、Al三种薄膜在激光辐照前后的RMS表面粗糙度与激光扫描速率的关系

Fig. 4. RMS surface roughness of Ag, Cu, and Al thin films as a function of laser scanning speed before and after laser irradiation

图 6. Ag、Cu、Al三种薄膜在激光辐照前后的SERS图谱

Fig. 6. SERS spectra of Ag, Cu,and Al thin films before and after laser irradiation

图 7. 采用FDTD仿真得到的Ag、Cu、Al三种薄膜在激光辐照前后的电场强度

Fig. 7. Electric-field intensities of Ag, Cu, and Al thin films before and after laser irradiation obtained from FDTD simulations

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脉冲激光改性金属纳米薄膜的等离子体特性 下载： 1771次

图 1. 实验过程示意图

Fig. 1. Schematic of experimental process

图 2. Ag、Cu、Al三种薄膜在激光辐照前后的XRD图谱

Fig. 2. XRD patterns of Ag, Cu,and Al thin films before and after laser irradiation

图 3. Ag、Cu、Al三种薄膜在激光辐照前后的AFM图

Fig. 3. AFM images of Ag, Cu, and Al thin films before and after laser irradiation

图 4. Ag、Cu、Al三种薄膜在激光辐照前后的RMS表面粗糙度与激光扫描速率的关系

Fig. 4. RMS surface roughness of Ag, Cu, and Al thin films as a function of laser scanning speed before and after laser irradiation

图 6. Ag、Cu、Al三种薄膜在激光辐照前后的SERS图谱

Fig. 6. SERS spectra of Ag, Cu,and Al thin films before and after laser irradiation

图 7. 采用FDTD仿真得到的Ag、Cu、Al三种薄膜在激光辐照前后的电场强度

Fig. 7. Electric-field intensities of Ag, Cu, and Al thin films before and after laser irradiation obtained from FDTD simulations

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脉冲激光改性金属纳米薄膜的等离子体特性下载： 1771次