First order phase change detection using planar waveguide Bragg grating refractometer
Solid-to-liquid and gas-to-liquid phase changes in water and ordered-to-isotropic phase changes in a nematic liquid crystal are detected with an optical sensor. A planar Bragg grating defined purely by refractive index modulation is covered with a water or liquid crystal overcladding and the tempera...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2005-06-07.
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| Subjects: | |
| Online Access: | Get fulltext |