Terahertz transmission through nanogaps using both pulsed and CW sources

J. S. Kyoung, M. A. Seo, H. R. Park, O. Kwon, G. S. Park, O. K. Suwal, S. S. Choi, D. S. Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We measure field enhancement through nanogap by using both terahertz time domain spectroscopy (TDS) and terahertz imaging technique with continuous wave (CW) radiation source. Far-field amplitude is connected to the near-field enhancement through the Kirchhoff formalism [1, 2, 3]. With TDS, we found that a field enhancement of 200 at 0.1 THz for the 500 nm slit. To confirm our TDS results, we also perform the transmission experiment with 70 nm width nanogap structure perforated in thin gold films on Si substrates by using 0.2 THz CW source.

Original languageEnglish (US)
Title of host publication34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009
DOIs
StatePublished - 2009
Event34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009 - Busan, Korea, Republic of
Duration: Sep 21 2009Sep 25 2009

Publication series

Name34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009

Other

Other34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009
CountryKorea, Republic of
CityBusan
Period9/21/099/25/09

Fingerprint Dive into the research topics of 'Terahertz transmission through nanogaps using both pulsed and CW sources'. Together they form a unique fingerprint.

Cite this