| 摘要 |
A waveguide plate and a process for making the waveguide plate with a plate-like glass substrate ( 1 ), carrying a waveguiding layer ( 2 ), with at least one coupling grating on the surface carrying said waveguiding layer ( 2 ), which coupling grating is formed as a grating of lines with a period between 150 nm and 1000 nm, the extension of said grating being at least 5 cm with lines parallel to one another, wherein the coupling angle (<img id="CUSTOM-CHARACTER-00001" he="3.13mm" wi="1.02mm" file="US06961490-20051101-P00900.TIF" alt="custom character" img-content="character" img-format="tif"/>) varies by not more than 0.1_/cm along a line of said grating and wherein the absolute value of the deviation of the coupling angle (<img id="CUSTOM-CHARACTER-00002" he="3.13mm" wi="1.02mm" file="US06961490-20051101-P00900.TIF" alt="custom character" img-content="character" img-format="tif"/>) on said waveguide plate, from a predefined desired value, does not exceed 0.5_. The deviation from the average value of the coupling angle does not exceed 0.3_, preferably not 0.15_ on the whole waveguide plate. The waveguide plate is suitable as part of a sensor platform and of an arrangement of sample compartments for chemo-and bioanalytical investigations in order to produce a coupling grating formed as a line grating with a grating period between 100 nm and 2500 nm
|
