Laser & Optoelectronics Progress, Volume. 57, Issue 11, 111401(2020)
Fundamentals and Applications of Ultrafast Laser Induced Photothermal Reshaping of Plasmonic Nanomaterials
Owing to its advantages of ultrashort pulse width and extremely high peak intensity, ultrafast lasers have been widely used in fabricating plasmonic nanomaterials. Laser beams with extremely high power densities heat the free electrons in plasmonic nanomaterials, thereby increasing the lattice temperature and causing photothermal reshaping. Depending on the power density of the laser beam and the melting/boiling threshold, we review three types of photothermal reshaping mechanisms: complete melting above threshold, surface atom diffusion below melting temperature, and ablation. The exemplary applications of photothermal reshaping of plasmonic nanomaterials in optical data storage, plasmonic color printing, and steganography are reviewed.
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Mingsi Zhang, Meiling Jiang, Ziwei Feng, Xu Ouyang, Yaoyu Cao, Xiangping Li. Fundamentals and Applications of Ultrafast Laser Induced Photothermal Reshaping of Plasmonic Nanomaterials[J]. Laser & Optoelectronics Progress, 2020, 57(11): 111401
Category: Lasers and Laser Optics
Received: Apr. 13, 2020
Accepted: Apr. 30, 2020
Published Online: Jun. 1, 2020
The Author Email: Li Xiangping (xiangpingli@jnu.edu.cn)