Scholarlink

<p>This study reports the formation of Laser-Induced Gradient Periodic Surface Structures (LIGPSS) on vanadium films using femtosecond laser irradiation. By varying fluence and pulse number, we observed a morphological evolution from nanostrips and high-spatial-frequency gratings (HSFGs) to hybrid structures with VO₂ nanosheets. Raman analysis confirmed the phase transition from vanadium to VO₂. At higher fluences, low-spatial-frequency gratings (LSFGs) appeared, oriented perpendicularly to the laser polarization. These findings demonstrate femtosecond laser processing as a promising method for controlled surface nanostructuring and VO₂-based smart material fabrication.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Vanadium dioxide (VO₂) nanostructure formation and gradient patterning on vanadium films via femtosecond laser processing

  • 期刊论文

  • 发表日期：

    2025年9月26日

查看全文
  • Paulina Segovia-Olvera,
  • Noel Ramos-Camacho,
  • Alejandro Esparza-Garcia,
  • Santiago Camacho-Lopez

摘要

This study reports the formation of Laser-Induced Gradient Periodic Surface Structures (LIGPSS) on vanadium films using femtosecond laser irradiation. By varying fluence and pulse number, we observed a morphological evolution from nanostrips and high-spatial-frequency gratings (HSFGs) to hybrid structures with VO₂ nanosheets. Raman analysis confirmed the phase transition from vanadium to VO₂. At higher fluences, low-spatial-frequency gratings (LSFGs) appeared, oriented perpendicularly to the laser polarization. These findings demonstrate femtosecond laser processing as a promising method for controlled surface nanostructuring and VO₂-based smart material fabrication.