Investigation on spectral loss characteristics of subwavelength terahertz fibers.
By measuring the spectral loss characteristics of subwavelength-diameter terahertz fibers, our study supports the recent theory proposed by M. Sumetsky [Opt. Lett. 31, 870 (2006)] that diameter-variation-induced radiation is a dominant loss mechanism for subwavelength fibers in the low- (<1%) core-fraction-power regime. This physical mechanism limits the lowest guidable frequency in a subwavelength fiber.
Chen
Hung-Wen
HW
Department of Electrical Engineering and Graduate Institute of Electro-Optical Engineering, National Taiwan University, Taiwan.
Li
Yu-Tai
YT
Pan
Ci-Ling
CL
Kuo
Jeng-Liang
JL
Lu
Ja-Yu
JY
Chen
Li-Jin
LJ
Sun
Chi-Kuang
CK