Enhanced spatial resolution of terahertz spectroscopy via semiconductor photoexcitation

Daniel Krotkov, Eli Flaxer, Sharly Fleischer

Research output: Contribution to journalArticlepeer-review

Abstract

We utilize the photoexcitation of a semiconductor material as a 'reflectivity switch' for a broadband terahertz field. We show that judicious use of this switch enables temporal characterization of the THz field with spatial resolution significantly surpassing the diffraction limit of the terahertz and provides desirable means for spatio-temporal terahertz spectroscopy.

Original languageEnglish
Pages (from-to)3365-3377
Number of pages13
JournalOSA Continuum
Volume3
Issue number12
DOIs
StatePublished - 15 Dec 2020

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