Title :
High Performance Polarizing Beam Splitter with Embedded Metal-wire Nanograting
Author :
Zhang, Liang ; Zhang, Fei ; Li, Chengfang ; Liu, Wen ; Wang, Dingli
Author_Institution :
Dept. of Phys., Wuhan Univ.
Abstract :
Based on innovative nano-optical structures and design, an embedded metal-wire nanograting was fabricated for using as a broadband polarizer or polarizing beam splitter to reflect TE-polarized light and transmit TM-polarized light, and AR coating was designed in order to achieve best efficiency for both polarizations. An upper-cladding layer of the same material as the gratings is deposited on the ridge of the gratings, whereas the metal wire is deposited in the grating trenches. This embedded structure makes the grating firmer in its applications. By optimization of the designed structure and AR coating, high polarization efficiency and low insertion loss with a broad wavelength ranges 1000-2000 nm and a wide angular tolerance are obtained
Keywords :
antireflection coatings; claddings; diffraction gratings; light polarisation; nanotechnology; optical beam splitters; 1000 to 2000 nm; AR coating; TE-polarized light; TM-polarized light; angular tolerance; anti-reflective coating; broadband polarizer; embedded metal-wire nanograting; insertion loss; nano-optical structures; polarization efficiency; polarizing beam splitter; upper-cladding layer; Gratings; Nanoscale devices; Nanostructures; Optical devices; Optical diffraction; Optical filters; Optical polarization; Optical refraction; Optical surface waves; Optical variables control; anti-reflective coatings; metal-wire nanograting; polarizing beam splitter;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems, 2006. NEMS '06. 1st IEEE International Conference on
Conference_Location :
Zhuhai
Print_ISBN :
1-4244-0139-9
Electronic_ISBN :
1-4244-0140-2
DOI :
10.1109/NEMS.2006.334571
