r | d | θ | ng | Δλ | ngΔω/ω | vg |
0.200a | 0.200a | 145o | 39.0 | 8.5 | 0.215 | 0.026c |
0.225a | 0.225a | 128o | 43.0 | 7.6 | 0.211 | 0.023c |
0.250a | 0.250a | 118.5o | 51.0 | 5.1 | 0.168 | 0.020c |
0.275a | 0.275a | 114o | 66.1 | 3.9 | 0.166 | 0.015c |
0.300a | 0.300a | 111.7o | 92.6 | 2.1 | 0.123 | 0.011c |