Reply to Comment on “Synthesis and Direct Sampling of Single-Cycle Light Transients by Electron Tunneling in a Nanodevice”

IF 6.5 1区 物理与天体物理 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Yang Luo, Alberto Martin-Jimenez, Frank Neubrech, Na Liu, Manish Garg
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Abstract

The phase in the lock-in detection, as derived in the discussions above, is (f1 + f0)τ – ϕ′′τ2 + ϕ′′′τ3. Please note that the GDD (ϕ′′) appears with an opposite sign to both the linear phase term as well as to the second order chirp (ϕ′′′). Thus, an increase of dispersion (positive linear chirp, ϕ′′), will have an inverse effect on the temporal profiles of the laser-induced tunnelling current. The phase characterized in our experiments will also have the contribution of the dispersive phase profile of the localized surface plasmon resonance (LSPR) of the nanodevice, as also demonstrated in the following work: Nature Photonics 2021, 15, 456–460. Figure 1. Characterization of dispersion by the frequency modulation technique. (a) Comparison of the temporal profiles of the laser-induced tunnelling current measured at the lock-in frequency of f0 when the laser pulses traverses though no glass (black curve) and ∼2 mm thick fused silica glass (blue curve). The dispersive element is placed in the path of the laser beam before it enters the interferometric setup. (b) Comparison of the spectrum of the incident laser pulses on the device (green curve) with the spectra of the laser pulses as retrieved by the Fourier-transformation of the temporal profiles shown in (a). (c) Comparison of the spectral phases of the laser pulse which traverses through the glass (blue curve) with the laser pulse which does not pass through the glass (black curve). Red curve shows the difference in the spectral phases of the two laser pulses. The sign of this spectral phase difference is flipped for a direct comparison with the theoretical estimation. The linear part of the spectral phases of the laser pulses has been removed in the analysis. Green curve shows the simulated phase profile assuming a GDD value of 50 fs2. Open access funded by Max Planck Society. This article has not yet been cited by other publications.

Abstract Image

关于“纳米器件中电子隧穿单周期光瞬态的合成与直接采样”的回复
锁相检测的相位,如在上面的讨论中导出的,是(f1 + f0)τ - ϕ ‘ τ2 + ϕ ’ τ3。请注意,GDD (ϕ”)出现与线性相位项以及二阶啁啾(ϕ”)相反的符号。因此,色散(正线性啁啾,φ”)的增加将对激光诱导隧穿电流的时间分布产生相反的影响。在我们的实验中表征的相位也将有纳米器件的局部表面等离子体共振(LSPR)的色散相位谱的贡献,正如以下工作所证明的那样:Nature Photonics 2021, 15, 456-460。图1所示。用调频技术表征色散。(a)激光脉冲穿过无玻璃(黑色曲线)和~ 2mm厚熔融石英玻璃(蓝色曲线)时,锁相频率为f0时测量的激光诱导隧穿电流的时间曲线的比较。色散元件在进入干涉装置之前被放置在激光束的路径上。(b)设备上入射激光脉冲的光谱(绿色曲线)与(a)所示时间曲线的傅里叶变换得到的激光脉冲光谱的比较。(c)穿过玻璃的激光脉冲的光谱相位(蓝色曲线)与未穿过玻璃的激光脉冲的光谱相位(黑色曲线)的比较。红色曲线表示两种激光脉冲的光谱相位差异。这个谱相位差的符号被翻转,以便与理论估计进行直接比较。分析中去掉了激光脉冲光谱相位的线性部分。绿色曲线表示假设GDD值为50 fs2时的模拟相位曲线。由马克斯普朗克学会资助的开放获取。这篇文章尚未被其他出版物引用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
ACS Photonics
ACS Photonics NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
11.90
自引率
5.70%
发文量
438
审稿时长
2.3 months
期刊介绍: Published as soon as accepted and summarized in monthly issues, ACS Photonics will publish Research Articles, Letters, Perspectives, and Reviews, to encompass the full scope of published research in this field.
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