Temperature dependence of femtosecond photoacoustic process in high-precision characterization for metal nanofilms
Femtosecond photoacoustic detection is a powerful all-optical technique for characterizing metal nanofilms. However, the lack of accurate descriptions of the temperature-dependent optical properties of metal nanofilms during ultrafast thermal processes hinders the deep understanding of this dynamic...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Photoacoustics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213597924000958 |
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| author | Zhongyu Wang Jing Min Yong Sun Xuesong Wang Xiuguo Chen Zirong Tang Shiyuan Liu |
| author_facet | Zhongyu Wang Jing Min Yong Sun Xuesong Wang Xiuguo Chen Zirong Tang Shiyuan Liu |
| author_sort | Zhongyu Wang |
| collection | DOAJ |
| description | Femtosecond photoacoustic detection is a powerful all-optical technique for characterizing metal nanofilms. However, the lack of accurate descriptions of the temperature-dependent optical properties of metal nanofilms during ultrafast thermal processes hinders the deep understanding of this dynamic behavior, leading to compromised measurement accuracy. To address this, we developed Critical Point Models (CPMs) for copper and AlCu nanofilms to describe their dynamic optical properties during photoacoustic testing. By integrating dynamic behavior into ultrafast laser-matter interaction and acousto-optic processes, we explored the temperature effects throughout testing. Numerical simulations were performed to analyze the temperature, stress, and surface reflectivity distributions of the nanofilms. Compared to experimental results, our dynamic models significantly improved prediction accuracy for both copper and AlCu nanofilms. This highlights the importance of temperature dependence in femtosecond photoacoustic testing and validates our model's capability to capture the behavior of metal nanofilms under ultrafast laser irradiation. |
| format | Article |
| id | doaj-art-a3259cfc34b241a682124f1f1d618008 |
| institution | Kabale University |
| issn | 2213-5979 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Photoacoustics |
| spelling | doaj-art-a3259cfc34b241a682124f1f1d6180082025-01-17T04:49:31ZengElsevierPhotoacoustics2213-59792025-02-0141100678Temperature dependence of femtosecond photoacoustic process in high-precision characterization for metal nanofilmsZhongyu Wang0Jing Min1Yong Sun2Xuesong Wang3Xiuguo Chen4Zirong Tang5Shiyuan Liu6School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; Optics Valley Laboratory, Wuhan 430074, ChinaSchool of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; Optics Valley Laboratory, Wuhan 430074, China; Corresponding authors at: School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; Optics Valley Laboratory, Wuhan 430074, China; Corresponding authors at: School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.Femtosecond photoacoustic detection is a powerful all-optical technique for characterizing metal nanofilms. However, the lack of accurate descriptions of the temperature-dependent optical properties of metal nanofilms during ultrafast thermal processes hinders the deep understanding of this dynamic behavior, leading to compromised measurement accuracy. To address this, we developed Critical Point Models (CPMs) for copper and AlCu nanofilms to describe their dynamic optical properties during photoacoustic testing. By integrating dynamic behavior into ultrafast laser-matter interaction and acousto-optic processes, we explored the temperature effects throughout testing. Numerical simulations were performed to analyze the temperature, stress, and surface reflectivity distributions of the nanofilms. Compared to experimental results, our dynamic models significantly improved prediction accuracy for both copper and AlCu nanofilms. This highlights the importance of temperature dependence in femtosecond photoacoustic testing and validates our model's capability to capture the behavior of metal nanofilms under ultrafast laser irradiation.http://www.sciencedirect.com/science/article/pii/S2213597924000958Femtosecond photoacousticMetal nanofilmsCritical point modelDynamic behaviorOptical properties |
| spellingShingle | Zhongyu Wang Jing Min Yong Sun Xuesong Wang Xiuguo Chen Zirong Tang Shiyuan Liu Temperature dependence of femtosecond photoacoustic process in high-precision characterization for metal nanofilms Photoacoustics Femtosecond photoacoustic Metal nanofilms Critical point model Dynamic behavior Optical properties |
| title | Temperature dependence of femtosecond photoacoustic process in high-precision characterization for metal nanofilms |
| title_full | Temperature dependence of femtosecond photoacoustic process in high-precision characterization for metal nanofilms |
| title_fullStr | Temperature dependence of femtosecond photoacoustic process in high-precision characterization for metal nanofilms |
| title_full_unstemmed | Temperature dependence of femtosecond photoacoustic process in high-precision characterization for metal nanofilms |
| title_short | Temperature dependence of femtosecond photoacoustic process in high-precision characterization for metal nanofilms |
| title_sort | temperature dependence of femtosecond photoacoustic process in high precision characterization for metal nanofilms |
| topic | Femtosecond photoacoustic Metal nanofilms Critical point model Dynamic behavior Optical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2213597924000958 |
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