Semiconductor plasmonic crystals : active control of THz extinction

M.C. Schaafsma, J. Gomez Rivas

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

7 Citaten (Scopus)
112 Downloads (Pure)

Samenvatting

We investigate theoretically the enhanced THz extinction by periodic arrays of semiconductor particles. Scattering particles of doped semiconductors can sustain localized surface plasmon polaritons, which can be diffractively coupled giving rise to surface lattice resonances. These resonances are characterized by a large extinction and narrow bandwidth, which can be tuned by controlling the charge carrier density in the semiconductor. The underlaying mechanism leading to this tuneability is explained using the coupled dipole approximation and considering GaAs as the semiconductor. The enhanced THz extinction in arrays of GaAs particles could be tuned in a wide range by optical pumping of charge carriers.
Originele taal-2Engels
Artikelnummer124003
Pagina's (van-tot)124003-1/7
Aantal pagina's8
TijdschriftSemiconductor Science and Technology
Volume28
Nummer van het tijdschrift12
DOI's
StatusGepubliceerd - 2013

Vingerafdruk Duik in de onderzoeksthema's van 'Semiconductor plasmonic crystals : active control of THz extinction'. Samen vormen ze een unieke vingerafdruk.

Citeer dit