Time- and Frequency-Resolved Electrodynamics of Germanium Nanoantennas for Mid-Infrared Plasmonics

Ortolani, M. et al. (2015) Time- and Frequency-Resolved Electrodynamics of Germanium Nanoantennas for Mid-Infrared Plasmonics. In: 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), Hong Kong, China, 23-28 Aug 2015, pp. 1-2. (doi: 10.1109/IRMMW-THz.2015.7327717)

Abstract

We investigate the mid-infrared response of heavily doped germanium films and periodic arrays of nanoantennas by both continuous wave transmission/reflection spectroscopy and ultrafast pump-probe spectroscopy. We compare the data to finite-element modeling electromagnetic simulations of the subwavelength nanostructures. The plasma frequency of the doped or optically activated semiconductor extends in the 1000-2000 cm-1 range thus enabling access to molecular fingerprints.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Paul, Professor Douglas and Samarelli, Mr Antonio and Gallacher, Dr Kevin
• Authors: Ortolani, M., Fischer, M. P., Baldassarre, L., Samarelli, A., Gallacher, K., Frigerio, J., Giliberti, V., Sakat, E., Schmidt, C., Leitenstorfer, A., Daniele, B., Isella, G., Paul, D. J., and Biagioni, P.
• College/School: College of Science and Engineering > School of Engineering; College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• ISSN: 2162-2027

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