| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| optics express impact factor | 0.1 | 0.9 | 7131 | 70 | 28 |
| optics | 1.51 | 1 | 4696 | 4 | 6 |
| express | 1.75 | 0.9 | 5602 | 56 | 7 |
| impact | 1.22 | 1 | 5009 | 65 | 6 |
| factor | 1.45 | 0.1 | 2529 | 91 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| optics express impact factor | 1.11 | 0.6 | 8667 | 90 |
