11.
    发明专利
    未知

    公开(公告)号:FI902103A0

    公开(公告)日:1990-04-26

    申请号:FI902103

    申请日:1990-04-26

    Applicant: BASF AG

    Abstract: The invention relates to a method for optical filtering of polarised light, the polarised light to be filtered impinging on a layer system in which surface plasmons or optical waveguide modes are excited.

    13.
    发明专利
    未知

    公开(公告)号:FI98660B

    公开(公告)日:1997-04-15

    申请号:FI901418

    申请日:1990-03-21

    Applicant: BASF AG

    Abstract: The invention relates to a method for determining the refractive index and layer thickness of ultrathin layers. In order to determine the refractive index and/or thickness of layers having layer thicknesses 1 mu m, layers which are applied to a solid substrate are recorded by means of surface/plasmon microscopy as a function of the angle of incidence of the irradiating laser beam. It is possible in this way to determine layer thicknesses with a vertical resolution >/= 0.1 nm in conjunction with simultaneous lateral resolution >/= 5 mu m.

    15.
    发明专利
    未知

    公开(公告)号:FI901418A0

    公开(公告)日:1990-03-21

    申请号:FI901418

    申请日:1990-03-21

    Applicant: BASF AG

    Abstract: The invention relates to a method for determining the refractive index and layer thickness of ultrathin layers. In order to determine the refractive index and/or thickness of layers having layer thicknesses 1 mu m, layers which are applied to a solid substrate are recorded by means of surface/plasmon microscopy as a function of the angle of incidence of the irradiating laser beam. It is possible in this way to determine layer thicknesses with a vertical resolution >/= 0.1 nm in conjunction with simultaneous lateral resolution >/= 5 mu m.

Patent Agency Ranking