The possibility of constructing an optical sensor for temperature monitoring based on the Goos–Hänchen (GH) effect is explored using a theoretical model. This model considers the lateral shift of the incident beam upon reflection from a metal–dielectric interface, with the shift becoming a function of temperature due mainly to the temperature dependence of the optical properties of the metal. It is found that such a sensor can be most effective by using long wavelength p-polarized incident light at almost grazing incidence onto the metal, where significant variation of negative GH shifts can be observed as a function of the temperature.
© 2007 Optical Society of America
Original Manuscript: November 27, 2006
Revised Manuscript: April 15, 2007
Manuscript Accepted: April 23, 2007
Published: July 23, 2007
Chih-Wei Chen, Wen-Chi Lin, Lu-Shing Liao, Zheng-Hung Lin, Hai-Pang Chiang, Pui-Tak Leung, Edin Sijercic, and Wan-Sun Tse, "Optical temperature sensing based on the Goos-Hänchen effect," Appl. Opt. 46, 5347-5351 (2007)