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Experimental results.
| Wave Mode | Wavenumber [1/m] |
Phase Velocity [m/s] |
Optimal ACT Angle [deg] |
|---|---|---|---|
| direction along fibres | |||
| A0 | 34.2 ± 1 | 1169.6 ± 33 | 17 ± 0.5 |
| S0 | 4.4 ± 0.13 | 9091 ± 261 | 2.1 ± 0.05 |
| direction across fibres | |||
| A0 | 61.2 ± 1.8 | 653.59 ± 19 | 31.6 ± 1 |
| S0 | 14.7 ± 0.4 | 2706.4 ± 72 | 7.2 ± 0.2 |
