First order phase change detection using planar waveguide Bragg grating refractometer
Sparrow, I.J.G., Emmerson, G.D., Gawith, C.B.E., Smith, P.G.R., Kaczmarek, M. and Dyadyusha, A. (2005) First order phase change detection using planar waveguide Bragg grating refractometer. Applied Physics B: Lasers and Optics, 81, (1), 1-4. (doi:10.1007/s00340-005-1872-8).
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Description/Abstract
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 temperature is controlled to trigger phase changes. Measurement of the Bragg wavelength allows changes of effective refractive index to be detected and discontinuities in behaviour caused by phase transitions can be clearly identified.
| Item Type: | Article |
|---|---|
| Additional Information: | Publication no. 3155 |
| ISSNs: | 0946-2171 (print) |
| Related URLs: | |
| Subjects: | T Technology > T Technology (General) Q Science > QC Physics |
| Divisions: | University Structure - Pre August 2011 > School of Physics and Astronomy > Quantum, Light and Matter University Structure - Pre August 2011 > Optoelectronics Research Centre |
| Item ID: | 30204 |
| Date Deposited: | 11 May 2006 |
| Last Modified: | 28 Jun 2012 10:16 |
| Contributors: | Sparrow, I.J.G. (Author) Emmerson, G.D. (Author) Gawith, C.B.E. (Author) Smith, P.G.R. (Author) Kaczmarek, M. (Author) Dyadyusha, A. (Author) |
| Date: | 2005 |
| Additional Information: | Publication no. 3155 |
| Status: | Published |
| Contact Email Address: | ijgs@orc.soton.ac.uk |
| URI: | http://eprints.soton.ac.uk/id/eprint/30204 |
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