LI Jie, DU Xiao-song, HU Jia, et al. Investigation of love wave resonator device coated with magnesium fluoride guiding layer[J]. 2008, 27(10): 60-62+65.
LI Jie, DU Xiao-song, HU Jia, et al. Investigation of love wave resonator device coated with magnesium fluoride guiding layer[J]. 2008, 27(10): 60-62+65. DOI: 10.13873/j.1000-97872008.10.011.
Magnesium fluoride guiding layer films is deposited on SSBW device by vacuum thermal evaporation.Frequency
insertion loss and mass sensitivity of the devices changed by the thickness of guiding layers are studied.A much low insertion loss of-23.93dB is achieved when the thickness of guiding layer is about 2.48μm.The maximum sensitivity is up to 416.7cm2·g-1of magnesium fluoride film with thickness of 6.5μm.Influence of different deposition rate to the quality of the films is analyzed.The results show that high quality films can be attained by using low deposition rate
and magnesium fluoride can be used as guiding layer material of Love wave device.