ULTRA-SHORT DURATION LASER METHODS FOR THE NANOSTRUCTURING OF MATERIALS
    7.
    发明申请
    ULTRA-SHORT DURATION LASER METHODS FOR THE NANOSTRUCTURING OF MATERIALS 审中-公开
    用于材料纳米结构的超短寿命激光方法

    公开(公告)号:US20080216926A1

    公开(公告)日:2008-09-11

    申请号:US11862449

    申请日:2007-09-27

    IPC分类号: C21D1/09 B23K26/00

    摘要: The present invention is generally directed to the materials processing regimes obtained with laser processing using ultra-short laser pulses of subpicosecond (i.e., up to hundreds of femtoseconds) duration, and to the altered materials obtained through such materials processing regimes. Thus various aspects of the present invention are directed to, for example, methods for altering materials by exposure of the materials to one or more pulses of a fs duration laser, while other aspects of the present invention are directed to, for example, materials altered by the methods of the invention. These macro-, micro-, and nanostructured materials have a variety of applications, including, for example, aesthetic applications such as jewelry or ornamentation; biomedical applications, especially medical applications involving biocompatibility bioperformance; catalysis applications; and modification of, for example, the optical and hydrophilic properties of materials.

    摘要翻译: 本发明一般涉及使用超小型激光脉冲(即高达数百飞秒)持续时间的激光加工以及通过这种材料加工方法获得的改变材料获得的材料加工方案。 因此,本发明的各个方面涉及例如通过将材料暴露于fs持续时间激光器的一个或多个脉冲来改变材料的方法,而本发明的其它方面涉及例如改变的材料 通过本发明的方法。 这些宏观,微观和纳米结构材料具有多种应用,包括例如美学应用如首饰或装饰; 生物医学应用,特别是涉及生物相容性生物学性能的医学应用; 催化应用; 以及例如材料的光学和亲水性质的修改。

    Dispersion-free, automatically phase-matched, and broad spectral-band femtosecond autocorrelation technique
    8.
    发明授权
    Dispersion-free, automatically phase-matched, and broad spectral-band femtosecond autocorrelation technique 失效
    无色散,自动相位匹配和宽谱带飞秒自相关技术

    公开(公告)号:US07420685B1

    公开(公告)日:2008-09-02

    申请号:US11413137

    申请日:2006-04-28

    申请人: Chunlei Guo

    发明人: Chunlei Guo

    IPC分类号: G01N21/25

    CPC分类号: G01J11/00

    摘要: Two optical signals are autocorrelated by causing them to be incident on a metal surface, where they generate a second (or higher) harmonic signal. The resulting harmonic signal is detected by a photomultiplier tube or the like. The harmonic signal generation on the metal surface is phase-matched and dispersion free and can be performed over a wide range of wavelengths.

    摘要翻译: 两个光信号通过使它们入射到金属表面而自相关,在这些表面上它们产生第二(或更高)谐波信号。 所得到的谐波信号由光电倍增管等检测。 金属表面上的谐波信号产生相位匹配和无色散,可在宽范围的波长范围内进行。