THz near-field microscopy of semiconductor and metal bowtie antennas

Arkabrata Bhattacharya, Giorgos Georgiou, Simon Sawallich, Christopher Matheisen, Michael Nagel, Jaime Gomez Rivas

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

We perform THz near-field measurements on bowtie antennas made of doped Si and gold. The measurements show a similar local field enhancement for the different materials. These measurements constitute the first demonstration of plasmonic near-field enhancement using semiconductors at THz frequencies. Semiconductors offer the possibility of ultrafast optical switching of plasmonic resonances (on a ps time scale), which will enable the active control of sub-wavelength fields. Since this excitation can be implemented in picoseconds time scale, these structures can be used as a tool for ultrafast sub-wavelength THz spectroscopic purposes.

Originele taal-2Engels
Titel2014 39th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2014
Plaats van productiePiscataway
UitgeverijIEEE Computer Society
ISBN van elektronische versie9781479938773978-1-4799-3877-3
DOI's
StatusGepubliceerd - 1 jan 2014
Evenement39th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz 2014) - Tucson, Verenigde Staten van Amerika
Duur: 14 sep 201419 sep 2014
Congresnummer: 39

Congres

Congres39th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz 2014)
Verkorte titelIRWWM-THz 2014
LandVerenigde Staten van Amerika
StadTucson
Periode14/09/1419/09/14

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