کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
850201 | 909281 | 2013 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Wide band polarizer with suspended silicon grating Wide band polarizer with suspended silicon grating](/preview/png/850201.png)
In this paper, we propose an ultra broadband polarizer operating in the telecommunication wavelength band; this device consisting a single silicon suspended resonant grating layer is designed with using the inverse mathematical method and rigorous vector diffraction theory. It is shown from our calculations that the device presents extremely high reflection (R > 98%) for TE polarization light and high transmission (T > 98%) for TM polarization over ∼330 nm wavelength range; moreover, the extinction ratio is ∼100 in the central wavelength 1550 nm. Furthermore, it is found with Rigorous Coupled Wave Analysis (RCWA) and near field distribution that the extremely wide band property for TE polarization is due to the excitation of strong modulation guided modes in the design wavelength range.
Journal: Optik - International Journal for Light and Electron Optics - Volume 124, Issue 22, November 2013, Pages 5607–5610