ArticleLight, science & applications2022
Ultrafast imaging of terahertz electric waveforms using quantum dots.
Article in Light, science & applications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Strategies to enhance THz harmonic generation combining multilayered, gated, and metamaterial-based architectures.Light, science & applications · 2025Article
- Study of modulation in complex refractive indices induced by ultrafast relativistic electrons using infrared and THz probe pulses.Physics in medicine and biology · 2024Article
- Time-resolved THz Stark spectroscopy of molecules in solution.Nature communications · 2024Article
- Ultrafast strong-field terahertz nonlinear nanometasurfaces.Nanophotonics (Berlin, Germany) · 2023Article
- Measurement of Optical Properties of CHMaterials (Basel, Switzerland) · 2023Article
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
Microscopic electric fields govern the majority of elementary excitations in condensed matter and drive electronics at frequencies approaching the Terahertz (THz) regime. However, only few imaging schemes are able to resolve sub-wavelength fields in the THz range, such as scanning-probe techniques, electro-optic sampling, and ultrafast electron microscopy. Still, intrinsic constraints on sample geometry, acquisition speed and field strength limit their applicability. Here, we harness the quantum-confined Stark-effect to encode ultrafast electric near-fields into colloidal quantum dot luminescence. Our approach, termed Quantum-probe Field Microscopy (QFIM), combines far-field imaging of visible photons with phase-resolved sampling of electric waveforms. By capturing ultrafast movies, we spatio-temporally resolve a Terahertz resonance inside a bowtie antenna and unveil the propagation of a Terahertz waveguide excitation deeply in the sub-wavelength regime. The demonstrated QFIM approach is compatible with strong-field excitation and sub-micrometer resolution-introducing a direct route towards ultrafast field imaging of complex nanodevices in-operando.
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Registered trials
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