Infrared and Laser Engineering, Volume. 45, Issue 6, 621001(2016)

Progress on ultrafast laser fabricating metal surface micro-nano antireflection structures

Fan Peixun* and Zhong Minlin
Author Affiliations
  • [in Chinese]
  • show less

    Surface antireflection properties are of great value in many fields including solar utilization, optoelectronic products, infrared sensing/imaging, stealth, aerospace technologies, etc. Here, the applications, the artificial realization routines of surface antireflection properties were summarized, as well as the state of the art in the surface antireflection structures. Currently, scientists have achieved ultra-broad-band antireflection performances through carbon nanotube coatings and silicon nanotip array structures. However, there is still much room for the improvement of the antireflection properties of metal surface micro/nano structures. Based on the next generation high power high repetition rate ultrafast laser system, the Laser Materials Processing Research Grouop in Tsinghua University has successfully fabricated diverse metal surface micro-nano structures and conducted systematic research on their antireflection properties. The average reflectance of metal surfaces in the UV-VIS, UV-NIR, UV-MIR, and UV-FIR regions are reduced down to around 2%, 6%, 5%, and 8%, respectively, exhibiting ultra-broad-band highly effective antireflection properties. Besides, these antireflection performances show little change within the incident angle range of 0-60°. Further, "macro-micronano-nanowire" hierarchical structures are also developed, reaching an ultralow total reflectance of 0.6% at the infrared wavelength around 16-17 μm and keeping steadily below 3% over a broad band of 14-18 μm. The outstanding ultra-broad-band spectrum antireflection properties are anticipated to have good prospects in various applications in future.

    Tools

    Get Citation

    Copy Citation Text

    Fan Peixun, Zhong Minlin. Progress on ultrafast laser fabricating metal surface micro-nano antireflection structures[J]. Infrared and Laser Engineering, 2016, 45(6): 621001

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: 先进光学材料

    Received: Nov. 10, 2015

    Accepted: Dec. 12, 2015

    Published Online: Jul. 26, 2016

    The Author Email: Peixun Fan (fpx@tsinghua.edu.cn)

    DOI:10.3788/irla201645.0621001

    Topics