scholarly journals Effect of interfacial damping on high-frequency surface wave resonance on a nanostrip-bonded substrate

2022 ◽  
Vol 131 (1) ◽  
pp. 015103
Author(s):  
Wenlou Yuan ◽  
Akira Nagakubo ◽  
Hirotsugu Ogi
Keyword(s):  
Surface Wave ◽  
High Frequency ◽  
Wave Resonance

Recent advances in high-frequency surface-wave methods

2015 ◽  
Author(s):  
Jianghai Xia ◽  
Lingli Gao ◽  
Yudi Pan ◽  
Chao Shen
Keyword(s):  
Surface Wave ◽  
High Frequency ◽  
Recent Advances ◽  
Wave Methods

scholarly journals Bloch Surface Wave Resonance Based Sensors as an Alternative to Surface Plasmon Resonance Sensors

Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5119 ◽  
Author(s):  
Michal Gryga ◽  
Dalibor Ciprian ◽  
Petr Hlubina
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Wave ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Moist Air ◽  
Polarized Waves ◽  
Wave Resonance ◽  
Highly Sensitive ◽  
Bloch Surface Wave ◽  
Spr Effect

We report on a highly sensitive measurement of the relative humidity (RH) of moist air using both the surface plasmon resonance (SPR) and Bloch surface wave resonance (BSWR). Both resonances are resolved in the Kretschmann configuration when the wavelength interrogation method is utilized. The SPR is revealed for a multilayer plasmonic structure of SF10/Cr/Au, while the BSWR is resolved for a multilayer dielectric structure (MDS) comprising four bilayers of TiO2/SiO2 with a rough termination layer of TiO2. The SPR effect is manifested by a dip in the reflectance of a p-polarized wave, and a shift of the dip with the change in the RH, or equivalently with the change in the refractive index of moist air is revealed, giving a sensitivity in a range of 0.042–0.072 nm/%RH. The BSWR effect is manifested by a dip in the reflectance of the spectral interference of s- and p-polarized waves, which represents an effective approach in resolving the resonance with maximum depth. For the MDS under study, the BSWRs were resolved within two band gaps, and for moist air we obtained sensitivities of 0.021–0.038 nm/%RH and 0.046–0.065 nm/%RH, respectively. We also revealed that the SPR based RH measurement is with the figure of merit (FOM) up to 4.7 × 10−4 %RH−1, while BSWR based measurements have FOMs as high as 3.0 × 10−3 %RH−1 and 1.1 × 10−3 %RH−1, respectively. The obtained spectral interferometry based results demonstrate that the BSWR based sensor employing the available MDS has a similar sensitivity as the SPR based sensor, but outperforms it in the FOM. BSW based sensors employing dielectrics thus represent an effective alternative with a number of advantages, including better mechanical and chemical stability than metal films used in SPR sensing.

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