FU Yun-liang~1, YUAN Yi-fang~2, FU Jun~1, et al. Surface plasmon resonance optical sensor by using Ag-SnO2 thin film[J]. 2007, (1): 54-55+59. DOI: 10.13873/j.1000-97872007.01.018.
S gas sensitive optical sensor structure coated a combined Ag-SnO
2
film is proposed.The Ag-SnO
2
combined film(CuO as the dropped impurity) is prepared by RF-reactive-sputtering deposition on rutile prism
and the thicknesss of Ag film and SnO
2
film are 50 nm and 100 nm respectively.A gas sample cell is set up on the surface of the combined film.Under the excitation of white light
the phenomena of SPR are occured on the demarcation surface of combined film.The experiments show that the resonance wavelength of SPR is almost linear with the H