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Proceedings Paper

Ultrafast field-resolved multi-THz spectroscopy on the sub-nanoparticle scale
Author(s): Tyler L. Cocker; Max Eisele; Markus A. Huber; Markus Plankl; Leonardo Viti; Daniele Ercolani; Lucia Sorba; Miriam S. Vitiello; Rupert Huber
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Paper Abstract

Terahertz spectroscopy plays a key role in understanding ultrafast carrier dynamics in nanomaterials. Diffraction, however, limits time-resolved terahertz spectroscopy to ensemble measurements. By combining time-resolved terahertz spectroscopy in the multi-terahertz range with scattering-type near-field scanning optical microscopy, we show that we can directly trace ultrafast local carrier dynamics in single nanoparticles with sub-cycle temporal resolution (10 fs). Our microscope provides both 10 nm lateral resolution and tomographic sensitivity, allowing us to observe the ultrafast build-up of a local surface depletion layer in an InAs nanowire.

Paper Details

Date Published: 31 August 2015
PDF: 6 pages
Proc. SPIE 9585, Terahertz Emitters, Receivers, and Applications VI, 95850S (31 August 2015); doi: 10.1117/12.2188562
Show Author Affiliations
Tyler L. Cocker, Univ. of Regensburg (Germany)
Max Eisele, Univ. of Regensburg (Germany)
Markus A. Huber, Univ. of Regensburg (Germany)
Markus Plankl, Univ. of Regensburg (Germany)
Leonardo Viti, Instituto Nanoscienze, CNR (Italy)
Scuola Normale Superiore (Italy)
Daniele Ercolani, Instituto Nanoscienze, CNR (Italy)
Scuola Normale Superiore (Italy)
Lucia Sorba, Instituto Nanoscienze, CNR (Italy)
Scuola Normale Superiore (Italy)
Miriam S. Vitiello, Instituto Nanoscienze, CNR (Italy)
Scuola Normale Superiore (Italy)
Rupert Huber, Univ. of Regensburg (Germany)


Published in SPIE Proceedings Vol. 9585:
Terahertz Emitters, Receivers, and Applications VI
Manijeh Razeghi; Alexei N. Baranov; John M. Zavada; Dimitris Pavlidis, Editor(s)

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