Table 2 The table shows the relative frequency change, by adding 0.5 μm to the liquid film thickness h . Considering the \(\pmb{f_{0}}\) listed in Table 3 , these numbers represent frequency changes of the order 10 \(\pmb{^{2}}\) -10 \(\pmb{^{3}\mbox{ Hz}}\)
From: Reconstruction of annular bi-layered media in cylindrical waveguide section
Mode | Relative tunability h  = 1 mm | Relative tunability h  = 2 mm |
|---|---|---|
TE110 | 3.701⋅10−6 | 5.107⋅10−6 |
TE210 | 7.452⋅10−6 | 1.293⋅10−5 |
Quarter wave | 1.520⋅10−5 | 1.059⋅10−5 |