Low-loss subwavelength plastic fiber for terahertz waveguiding

Li Jin Chen, Hung Wen Chen, Tzeng Fu Kao, Ja Yu Lu, Chi Kuang Sun

研究成果: Article同行評審

332 引文 斯高帕斯(Scopus)


We report a simple subwavelength-diameter plastic wire, similar to an optical fiber, for guiding a terahertz wave with a low attenuation constant. With a large wavelength-to-fiber-core ratio, the fractional power delivered inside the lossy core is reduced, thus lowering the effective fiber attenuation constant. In our experiment we adopt a polyethylene fiber with a 200 μm diameter for guiding terahertz waves in the frequency range near 0.3 THz in which the attenuation constant is reduced to of the order of or less than 0.01 cm-1. Direct free-space coupling efficiency as high as 20% can be achieved by use of an off-axis parabolic mirror. Furthermore, all the plastic wires are readily available, with no need for complex or expensive fabrication.

頁(從 - 到)308-310
期刊Optics Letters
出版狀態Published - 2006 2月 1

All Science Journal Classification (ASJC) codes

  • 原子與分子物理與光學


深入研究「Low-loss subwavelength plastic fiber for terahertz waveguiding」主題。共同形成了獨特的指紋。