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公开(公告)号:US20160299077A1
公开(公告)日:2016-10-13
申请号:US15100346
申请日:2014-11-25
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: JOHANNES JOSEPH HUBERTINA BARBARA SCHLEIPEN , REINHOLD WIMBERGER-FRIEDL , PIETER JAN VAN DER ZAAG , HENDRIK PAUL URBACH , MITRADEEP SARKAR
CPC classification number: G01N21/648 , C12Q1/6869 , G01N21/6452 , G01N21/7743 , G01N2021/7773 , G01N2021/7786 , G01N2201/06113 , G01N2201/068 , G01N2201/08
Abstract: The invention relates to an optical device (110) and a corresponding detection apparatus (100) that may for example be used for monitoring the replication of nucleotide sequences at a surface. In a preferred embodiment, the optical device (110) comprises a waveguide substrate (130) with a wiregrid (140) on a bottom surface (132), wherein apertures (141) of the wiregrid are in at least one direction (x) smaller than a characteristic wavelength (λ) of input light (IL). Moreover, a diffractive structure (120) is disposed on the opposite surface (131) of the substrate (130) for coupling input light (IL) into the substrate (130) such that constructive interference occurs at the apertures (141). Thus evanescent waves can be generated with high efficiency in these apertures, allowing for example for a surface-specific excitation of fluorescence (FL) that can be sensed by a detector (160).
Abstract translation: 本发明涉及可以例如用于监测表面上的核苷酸序列的复制的光学装置(110)和相应的检测装置(100)。 在优选实施例中,光学装置(110)包括在底表面(132)上具有丝网(140)的波导基底(130),其中,丝网的孔(141)在至少一个方向(x)上较小 比输入光(IL)的特征波长(λ)大。 此外,衍射结构(120)设置在衬底(130)的相对表面(131)上,用于将输入光(IL)耦合到衬底(130)中,使得在孔(141)处发生相长的干涉。 因此,可以在这些孔中以高效率产生ev逝波,例如允许由检测器(160)感测的荧光(FL)的表面特异性激发。