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Self-collimated waveguide bends and partial bandgap reflection of photonic crystals with parallelogram lattice.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Gao, Dingshan Zhou, Zhiping |
| Copyright Year | 2008 |
| Abstract | The photonic crystal structure with parallelogram lattice, capable of bending a self-collimated wave with free angles and partial bandgap reflection, is presented. The equifrequency contours show that the direction of the collimation wave can be turned by tuning the angle between the two basic vectors of the lattice. Acute, right, and obtuse angles of collimating waveguide bends have been realized by arc lattices of parallelogram photonic crystals. Moreover, partial bandgap reflection of the parallelogram lattice photonic crystals is validated from the equifrequency contours and the projected band structures. A waveguide taper based on this partial bandgap reflection is also designed and proved to have above 85% transmittance over a very wide operating bandwidth of 180 nm. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://spm.pku.edu.cn/upload/fckeditor/2011-11/09140514.pdf |
| PubMed reference number | 18311251v1 |
| Volume Number | 25 |
| Issue Number | 3 |
| Journal | Journal of the Optical Society of America. A, Optics, image science, and vision |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Bending - Changing basic body position Collimator Device Component Decompression Sickness Projections and Predictions Tapering - action Waveguide Device Component |
| Content Type | Text |
| Resource Type | Article |
