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| Content Provider | Springer Nature Link |
|---|---|
| Author | Si, J.H. Qiu, J.R. Hirao, K. |
| Copyright Year | 2002 |
| Abstract | Volume holographic gratings and two-dimensional periodic microstructures in azodye-doped polymethylmethacrylate were fabricated, respectively, by interference of two coherent beams of a femtosecond laser and by interference of three coherent beams of a nanosecond laser. The dependence of the first-order Bragg diffraction efficiency and the photoinduced refractive-index modulation of the gratings on the intensity of the writing light was investigated. The measurements of the absorption spectra before and after irradiation with the writing light suggest that the photoinduced gratings were refractive-index-modulated gratings, which arose from a photoinduced decomposition reaction of the azodye molecules through multiphoton absorption. In the experiments involving the interference of three beams, the period of the two-dimensional periodic microstructures was changed by adjusting the angle between the three writing beams. |
| Starting Page | 847 |
| Ending Page | 851 |
| Page Count | 5 |
| File Format | |
| ISSN | 09462171 |
| Journal | Applied Physics B |
| Volume Number | 75 |
| Issue Number | 8 |
| e-ISSN | 14320649 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2002-12-01 |
| Publisher Place | Berlin Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
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