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).


[img] PDF - Author's Original
Restricted to Registered users only

Download (363Kb) | Request a copy


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
Digital Object Identifier (DOI): doi:10.1007/s00340-005-1872-8
ISSNs: 0946-2171 (print)
Related URLs:
Subjects: Q Science > QC Physics
T Technology > T Technology (General)
Divisions: University Structure - Pre August 2011 > School of Physics and Astronomy > Quantum, Light and Matter
University Structure - Pre August 2011 > Optoelectronics Research Centre
ePrint ID: 30204
Date :
Date Event
Date Deposited: 11 May 2006
Last Modified: 21 Oct 2016 17:49

Actions (login required)

View Item View Item

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics