典型文献
Ultrafast imaging of terahertz electric waveforms using quantum dots
文献摘要：
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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中图分类号：
作者姓名：
Moritz B.Heindl;Nicholas Kirkwood;Tobias Lauster;Julia A.Lang;Markus Retsch;Paul Mulvaney;Georg Herink
作者机构：
Experimental Physics Ⅷ-Ultrafast Dynamics,University of Bayreuth,Bayreuth,Germany;ARC Centre of Excellence in Exciton Science,School of Chemistry,University of Melbourne,Melbourne,Australia;Physical Chemistry Ⅰ,University of Bayreuth,Bayreuth,Germany
文献出处：
引用格式：
[1]Moritz B.Heindl;Nicholas Kirkwood;Tobias Lauster;Julia A.Lang;Markus Retsch;Paul Mulvaney;Georg Herink-.Ultrafast imaging of terahertz electric waveforms using quantum dots)[J].光：科学与应用（英文版）,2022(01):63-68
A类：
QFIM
B类：
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AB值：
0.65578
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