Comprehensive analysis of diffraction efficiency of conical beam from sub-wavelength binary metallic grating using rigorous coupled-wave theory

Optik ◽  
2015 ◽  
Vol 126 (24) ◽  
pp. 5504-5508 ◽  
Author(s):  
Bita Azemoodeh Afshar ◽  
Pari Soltanpour ◽  
Arash Sabatyan
Keyword(s):  
Diffraction Efficiency ◽  
Wave Theory ◽  
Comprehensive Analysis ◽  
Metallic Grating ◽  
Rigorous Coupled Wave ◽  
Conical Beam ◽  
Sub Wavelength ◽  
Coupled Wave

Rigorous Coupled Wave Analysis of Surface Plasmon Resonance Sensor Based on Metallic Grating

2011 ◽  
Vol 211-212 ◽  
pp. 465-468
Author(s):  
De Wei Chen
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Diffraction Order ◽  
Wave Analysis ◽  
Metallic Grating ◽  
Rigorous Coupled Wave Analysis ◽  
Resonance Sensor ◽  
Rigorous Coupled Wave ◽  
Coupled Wave

Since the development almost a decade ago of the first biosensor based on surface plasmon resonance (SPR), the use of this technique has increased steadily. In this study, we theoretically investigated the sensing character of SPR sensor with reflection type metallic with Rigorous Coupled Wave Analysis (RCWA) method, and the mechanism is analyzed by the field distribution. It is found that the sensitivity of negative diffraction order, which goes higher quickly as the resonant angle increases, is much greater than that of positive diffraction order.

Design and Analysis of Optical-Communication-Band Sub-Wavelength Grating Polarizer

2013 ◽  
Vol 683 ◽  
pp. 207-210
Author(s):  
Er Fei Cai ◽  
Yong Qing Huang ◽  
Xiao Feng Duan ◽  
Xiao Min Ren
Keyword(s):  
Diffraction Efficiency ◽  
Optical Communication ◽  
Optical Switching ◽  
Optical Memory ◽  
Optical Detectors ◽  
Rigorous Coupled Wave Analysis ◽  
Te Mode ◽  
Communication Devices ◽  
Rigorous Coupled Wave ◽  
Sub Wavelength

According to the requirement of the optical communication devices, sub-wavelength grating polarizer was studied based on rigorous coupled-wave analysis (RCWA) and designed with SOI materials. The paper analyzes the grating parameters such as the period, depth, fill groove that influence the diffraction efficiency of the grating. The TM mode diffraction efficiency is more than 95%, and the TE mode diffraction efficiency is less than 5%, the pyramidal sub-wavelength polarizer grating has good polarizer performance than others shapes in the optical communication band of 1550nm. In this paper, we designed this kind of sub-wavelength grating polarizer has great potential applying in optical switching, optical memory, optical detectors and other photo-electronic devices.

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