Ultrafast field-resolved multi-THz spectroscopy on the sub-nanoparticle scale

Tyler L. Cocker; Max Eisele; Markus A. Huber; Markus Plankl; Leonardo Viti; Daniele Ercolani; Lucia Sorba; Miriam S. Vitiello; Rupert Huber

doi:10.1117/12.2188562

31 August 2015 Ultrafast field-resolved multi-THz spectroscopy on the sub-nanoparticle scale

Tyler L. Cocker, Max Eisele, Markus A. Huber, Markus Plankl, Leonardo Viti, Daniele Ercolani, Lucia Sorba, Miriam S. Vitiello, Rupert Huber

Author Affiliations +

Proceedings Volume 9585, Terahertz Emitters, Receivers, and Applications VI; 95850S (2015) https://doi.org/10.1117/12.2188562
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

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.

Citation Download Citation

Tyler L. Cocker, Max Eisele, Markus A. Huber, Markus Plankl, Leonardo Viti, Daniele Ercolani, Lucia Sorba, Miriam S. Vitiello, and Rupert Huber "Ultrafast field-resolved multi-THz spectroscopy on the sub-nanoparticle scale", Proc. SPIE 9585, Terahertz Emitters, Receivers, and Applications VI, 95850S (31 August 2015); https://doi.org/10.1117/12.2188562

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