Abstract
Laser photoablation of red polydiacetylene films was observed at 193, 248, 266 and 532 nm. Etch curves are reported, in conjunction with simultaneous spectroscopic absorption measurements. In the ultraviolet region the characteristics were found to resemble those of unconjugated polymers, showing little non-ablative degradation. With visible light, however, residual polymer degradation was observed in addition to ablation, which can be related to the conjugated nature of the polymer backbone. Temporally resolved transmission measurements at the helium-neon laser wavelength showed a submicrosecond response at both UV and visible wavelengths, confirming the ablative nature of the process in both cases.
| Original language | English |
|---|---|
| Pages (from-to) | 247-253 |
| Number of pages | 7 |
| Journal | Journal of molecular electronics |
| Volume | 5 |
| Issue number | 4 |
| Publication status | Published - Oct 1989 |
| Externally published | Yes |