| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| polarization volume grating waveguide | 1.91 | 0.4 | 3979 | 35 | 37 |
| polarization | 1.76 | 0.7 | 7330 | 32 | 12 |
| volume | 0.07 | 0.7 | 3791 | 30 | 6 |
| grating | 0.27 | 0.3 | 6444 | 60 | 7 |
| waveguide | 0.97 | 0.6 | 6529 | 12 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| polarization volume grating waveguide | 0.52 | 0.9 | 6433 | 29 |
