发明公开
EP1411383A1 Surface plasmon resonance optical notch filter apparatus and method therefor
审中-公开
Optischer Bandsperrfilter basierend aufOberflächenplasmonenresonanzund damit verbundenes Verfahren
- 专利标题： Surface plasmon resonance optical notch filter apparatus and method therefor
- 专利标题（中）： Optischer Bandsperrfilter basierend aufOberflächenplasmonenresonanzund damit verbundenes Verfahren
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申请号： EP02257122.8申请日： 2002-10-14
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公开(公告)号： EP1411383A1公开(公告)日： 2004-04-21
- 发明人: Xu, Yu, c/o Agilent Technologies UK Limited
- 申请人： Agilent Technologies, Inc. - a Delaware corporation -
- 申请人地址： 395 Page Mill Road, P.O. Box 10395 Palo Alto, CA 94303-0870 US
- 专利权人： Agilent Technologies, Inc. - a Delaware corporation -
- 当前专利权人： Agilent Technologies, Inc. - a Delaware corporation -
- 当前专利权人地址： 395 Page Mill Road, P.O. Box 10395 Palo Alto, CA 94303-0870 US
- 代理机构： Coker, David Graeme
- 主分类号： G02F1/1335
- IPC分类号： G02F1/1335 ; G02F1/19 ; G02B27/28
摘要：
Known optical notch filter devices employing Surface Plasmon Resonance (SPR) do not completely filter out light of a predetermined wavelength from light from an optical source, because the light of the predetermined wavelength has a combination of polarisation states, namely the p-polarised and s-polarised states. In known device arrangements, if the light of the predetermined wavelength is to be completely filtered out of the light from the optical source, a secondary optical notch filter device has to be provided. The present invention overcomes these disadvantages and achieves complete filtration of light of the predetermined wavelength from the light from the optical source by providing a polarisation modifying element (22) to rotate the state of polarisation of s-polarised light into p-polarised light that can be filtered by a single optical notch filter device (2) employing SPR.
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