Abstract
We designed a compact terahertz (THz) wave polarizing beam splitter based on a periodic bilayer structure, which operates over a wide THz wavelength range. Within a short length (about ), this polarizing beam splitter separates THz wave TE- and TM-polarized modes into orthogonal output waveguides. Results of simulations with the finite-element method show that 99.99% of the TE-polarized THz wave is deflected by the periodic bilayer structure (with extinction ratio), whereas 99.58% of the TM-polarized THz wave propagates through the structure (with a extinction ratio). Tolerance analysis reveals a large tolerance to fabrication errors.
© 2010 Optical Society of America
Full Article | PDF ArticleOSA Recommended Articles
Seunghyun Kim, Gregory P. Nordin, Jingbo Cai, and Jianhua Jiang
Opt. Lett. 28(23) 2384-2386 (2003)
Tiaoming Niu, Withawat Withayachumnankul, Aditi Upadhyay, Philipp Gutruf, Derek Abbott, Madhu Bhaskaran, Sharath Sriram, and Christophe Fumeaux
Opt. Express 22(13) 16148-16160 (2014)
Xiao Sun, J. Stewart Aitchison, and Mo Mojahedi
Opt. Express 25(7) 8296-8305 (2017)