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Optical and Laser-Induced Damage Characterization of Porous Structural Silicon Oxide Film with Hexagonal Period by Nanoimprint Lithography
| Content Provider | MDPI |
|---|---|
| Author | Li, Yuan Su, Junhong Xu, Junqi Yang, Lihong Yang, Guoliang |
| Copyright Year | 2022 |
| Description | We designed and fabricated a porous nanostructured film with a hexagonal period for a high-power laser system. The proposed nanostructure exhibits polarization-independent, infrared, and antireflective properties. The measured transmittance of the structural film does not drop below 93% between 948 nm and 2500 nm (exceeding 95% from 1411–2177 nm), and this performance is maintained for incident angles ranging from 0–30°. The laser-induced damage threshold (LIDT) of the structural film (17.94 $J/cm^{2}$) is much higher than that of the single layer of $SiO_{2}$ film (7.06 $J/cm^{2}$). These results show that the preparation process is an effective technique to obtain a large-scale structural surface for high-power laser systems. |
| Starting Page | 351 |
| e-ISSN | 20796412 |
| DOI | 10.3390/coatings12030351 |
| Journal | Coatings |
| Issue Number | 3 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-03-07 |
| Access Restriction | Open |
| Subject Keyword | Coatings Antireflection Structural Film Polarization Independence Laser-induced Damage Threshold (lidt) |
| Content Type | Text |
| Resource Type | Article |
