| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 848393 | Optik - International Journal for Light and Electron Optics | 2015 | 4 Pages |
Abstract
A defect subwavelength metallic grating is proposed to improve light transmittance and quantum efficiency, leading to better responsivity of photodetector at 1550 nm wavelength. We mainly focus on the refractive index of rectangle defect influence on performance. With optimizing the parameter, responsivity can be increased 4.5 times, compared to the photodetector with uniform subwavelength metallic grating. In addition, response bandwidth of the structure can reach 76 GHz.
Related Topics
Physical Sciences and Engineering
Engineering
Engineering (General)
Authors
Mingdi Du, Junqiang Sun,