Design and Fabrication of Lower Aspect Ratio Subwavelength Grating for Polarization Separation

Date Issued
01-01-2012
Author(s)
Sridharan, Gayathri
Pramitha, V.
Indian Institute of Technology, Madras
Abstract
Highly efficient polarization separation requires very high aspect ratio gratings. The simplified modal method allows compromises between height and efficiency. Lower aspect ratio gratings are designed for 633nm and fabricated by e-beam lithography.