Table 2.
Comparative data of laser-induced change of the refractive index Δni for the currently studied and previously investigated plastic materials at the wavelength of 532 nm.
| Studied Structure |
Dopant Content wt.% |
Energy Density, J × cm−2 |
Λ, mm−1 |
Laser Pulse Width, ns |
Δni | References |
|---|---|---|---|---|---|---|
| Pure PI | 0 | 0.6 | 90 | 20 | 10−4–10−5 | [49] |
| PI + C60 | 0.2 | 0.5–0.6 | 90 | 10–20 | 4.2 × 10−3 | [49] |
| PI + C70 | 0.2 | 0.6 | 90 | 10–20 | 4.68 × 10−3 | [49] |
| PI + Sh 1 | 0.1 | 0.5 | 100 | 20 | 4.1 × 10−3 | current |
| PI + Sh | 0.2 | 0.5 | 100 | 20 | 5.5 × 10−3 | current |
| PI + Sh | 0.2 | 0.6 | 150 | 20 | 5.3 × 10−3 | [59,60] |
| PI + CNTs | 0.1 | 0.5–0.8 | 90 | 10–20 | 5.7 × 10−3 | [49] |
| PI + CNTs | 0.2 | 0.6 | 100 | 20 | 5.5 × 10−3 | current |
| PI + DWCNTs 2 | 0.1 | 0.1 | 100 | 10 | 9.4 × 10−3 | [61] |
| PI + DWCNTs | 0.2 | 0.3 | 100 | 10 | 9.8 × 10−3 | current |
| PI + DWCNTs | 0.1 | 0.1 | 150 | 10 | 7.0 × 10−3 | [61] |
| PI + RGO | 0.1 | 0.1 | 100 | 20 | 7.5 × 10−3 | current |
| PI + RGO | 0.2 | 0.3 | 100 | 20 | 7.7 × 10−3 | current |
| PI + RGO | 0.1 | 0.1 | 150 | 20 | 6.5 × 10−3 | current |
| Pure COANP | 0 | 0.9 | 100 | 20 | ~10−5 | [49,62] |
| COANP + C60 | 5 | 0.9 | 90–100 | 20 | 6.2 × 10−3 | [62] |
| COANP + C70 | 0.5 | 0.9 | 100 | 20 | 4.5 × 10−3 | current |
| COANP + C70 | 2.0 | 0.9 | 100 | 20 | 5.2 × 10−3 | current |
| COANP + C70 | 5 | 0.9 | 90 | 10–20 | 6.89 × 10−3 | [49] |
Sh 1—shungite nano-object dopant, DWCNTs 2—double-walled carbon nanotubes dopant.