Terahertz time-domain transmission and reflection spectroscopy of niobium

Taeyoon Hong, Kyujin Choi, Byoung Cheol Park, Taewoo Ha, Kyung Ik Sim, Dong Gwang Ha, Yonuk Chong, Jae Hoon Kim

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We have developed a terahertz time-domain spectroscopy (THz-TDS) system for transmission and reflection measurements of metallic thin films. Using our THz-TDS system, we studied the conventional superconductor niobium (Nb) in the normal state in the spectral range from 5 to 50 cm-1. Both the real and imaginary parts of the conductivity are acquired without Kramers-Kronig analysis. Nb exhibits a nearly frequency independent real conductivity spectrum in the terahertz range, with a very small imaginary part.

Original languageEnglish
Pages (from-to)11-13
Number of pages3
JournalJournal of the Korea Institute of Applied Superconductivity and Cryogenics
Issue number1
Publication statusPublished - 2013

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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