Waveguide plate and process for its production and...

Details Waveguide plate and process for its production and... Waveguide plate and process for its production and...

2007-05-08

2007-05-08

Bovernick, Rodney (Department: 2874)

Optical waveguides

With optical coupler

Input/output coupler

C430S005000

Reexamination Certificate

active

11208765

ABSTRACT:
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 (θ) 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 (θ) 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.

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European Search Report dated Oct. 14, 2005 with an English translation of the pertinent portion (three (3) pages).

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