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1. NATURAL SCIENCES, 1.3 PHYSICAL SCIENCES, Optics
The humidity and temperature responses of a reflection hologram recorded in a self-processing photopolymer layer have been characterised by measurement of the position of the maximum intensity in the spectral response of the hologram. It has been demonstrated that such a hologram can be used for indication of the relative humidity (RH) in a specific temperature range. The operational range and reversibility of the holograms have been characterised in a controlled humidity and temperature environment. The humidity studies were carried out in the range from 10 to 80% RH and the temperature range under study was 15 – 50 ºC.
Naydenova, I. et al. (2009) Characterisation of the Humidity and Temperature Responses of a Reflection Hologram Recorded in Acrylamide-Based Photopolymer. Sensors and Actuators B: Chemical, Vol. 139,no. 1, pp.35-38, May. doi: 10.1016/j.snb.2008.08.020