Active dielectric antenna on chip for spatial light modulation
| dc.citation.issueNumber | 855 | en_US |
| dc.citation.journalTitle | Scientific Reports | en_US |
| dc.citation.volumeNumber | 2 | en_US |
| dc.contributor.author | Qiu, Ciyuan | en_US |
| dc.contributor.author | Chen, Jianbo | en_US |
| dc.contributor.author | Xia, Yang | en_US |
| dc.contributor.author | Xu, Qianfan | en_US |
| dc.date.accessioned | 2013-08-22T22:47:43Z | en_US |
| dc.date.available | 2013-08-22T22:47:43Z | en_US |
| dc.date.issued | 2012-11-14 | en_US |
| dc.description.abstract | Integrated photonic resonators are widely used to manipulate light propagation in an evanescently-coupled waveguide. While the evanescent coupling scheme works well for planar optical systems that are naturally waveguide based, many optical applications are free-space based, such as imaging, display, holographics, metrology and remote sensing. Here we demonstrate an active dielectric antenna as the interface device that allows the large-scale integration capability of silicon photonics to serve the free-space applications. We show a novel perturbation-base diffractive coupling scheme that allows a high-Q planer resonator to directly interact with and manipulate free-space waves. Using a silicon-based photonic crystal cavity whose resonance can be rapidly tuned with a p-i-n junction, a compact spatial light modulator with an extinction ratio of 9.5 dB and a modulation speed of 150 MHz is demonstrated. Method to improve the modulation speed is discussed. | en_US |
| dc.description.sponsorship | Air Force Office of Scientific Research (AFOSR grant FA9550-12-1-0261) | en_US |
| dc.identifier.citation | C. Qiu, J. Chen, Y. Xia and Q. Xu, "Active dielectric antenna on chip for spatial light modulation," <i>Scientific Reports,</i> vol. 2, no. 855, 2012. | en_US |
| dc.identifier.doi | http://dx.doi.org/10.1038/srep00855 | en_US |
| dc.identifier.uri | https://hdl.handle.net/1911/71766 | en_US |
| dc.language.iso | eng | en_US |
| dc.publisher | Nature Publishing Group | en_US |
| dc.title | Active dielectric antenna on chip for spatial light modulation | en_US |
| dc.type | Journal article | en_US |
| dc.type.dcmi | Text | en_US |
| dc.type.dcmi | Text | en_US |