Abstract
To develop a thin and flexible hollow waveguide for terahertz (THz) waves that can be applied to endoscopic applications, a new (to our knowledge) fabrication method is proposed in which thin polymer tubing is first drawn and then a silver layer is formed on the outside of the tubing. By using this method, a thick dielectric layer, which was difficult to form by liquid-phase deposition, is easily obtained with high accuracy in the thickness. A transmission loss at 1.5 THz measured by a Fourier transform IR spectrometer was 3.0 dB for a 50 cm long, 1 mm inner-diameter waveguide. It is shown that the transmission losses are not affected by the bending of the waveguide when the bending radius is larger than around 10 cm.
© 2012 Optical Society of America
Full Article | PDF ArticleMore Like This
Bang-Shan Sun, Xiao-Li Tang, Xuan Zeng, and Yi-Wei Shi
Appl. Opt. 51(30) 7276-7285 (2012)
Pallavi Doradla, Cecil S. Joseph, Jayant Kumar, and Robert H. Giles
Opt. Express 20(17) 19176-19184 (2012)
Yukio Abe, Yi-Wei Shi, Yuji Matsuura, and Mitsunobu Miyagi
Opt. Lett. 25(3) 150-152 (2000)