Shape resonance omni-directional terahertz filters with near-unity transmittance

J. W. Lee, M. A. Seo, D. J. Park, D. S. Kim, S. C. Jeoung, Ch Lienau, Q. Han Park, P. C.M. Planken

Research output: Contribution to journalArticlepeer-review

82 Citations (Scopus)


Terahertz transmission filters have been manufactured by perforating metal films with various geometric shapes using femtosecond laser machining. Two dimensional arrays of square, circular, rectangular, c-shaped, and epsilon-shaped holes all support over 99% transmission at specific frequencies determined by geometric shape, symmetry, polarization, and lattice constant. Our results show that plasmonic structures with different geometric shaped holes are extremely versatile, dependable, easy to control and easy to make terahertz filters.

Original languageEnglish
Pages (from-to)1253-1259
Number of pages7
JournalOptics Express
Issue number3
Publication statusPublished - 2006 Feb

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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