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Comment on “Synthesis and Direct Sampling of Single-Cycle Light Transients by Electron Tunneling in a Nanodevice”
ACS Photonics ( IF 6.5 ) Pub Date : 2025-01-23 , DOI: 10.1021/acsphotonics.4c01800
Phillip D. Keathley, Felix Ritzkowsky

A recent article by Luo et al., “Synthesis and Direct Sampling of Single-Cycle Light Transients by Electron Tunneling in a Nanodevice.” ACS Photonics 2023, 10, 2866–2873, describes the use of photoassisted tunneling from nanostructures to sample synthesized optical field transients in the time domain. The authors claim that with their measurement approach the single-photon absorption process they used for detection is sufficient for the complete characterization of the measured optical field transients in the time domain, thus providing complete amplitude and phase information in the frequency domain. However, our own analysis shows that if the experiments described in the manuscript behave in the way the authors describe, it would in fact not be possible to retrieve complete optical field information. Our analysis finds that measurements described by the authors should only provide spectral amplitude information no different from the information provided by a spectrometer. As a result of our findings, we have significant concerns regarding the validity of the key claims of the paper.

中文翻译:


评论 “纳米器件中电子隧穿对单周期光瞬变的合成和直接采样”



Luo 等人最近的一篇文章,“纳米器件中电子隧穿对单周期光瞬变的合成和直接采样”。ACS Photonics202310, 2866–2873,描述了从纳米结构到在时域中采样合成光场瞬变的光辅助隧穿的使用。作者声称,在他们的测量方法中,他们用于检测的单光子吸收过程足以在时域中完整表征被测的光场瞬变,从而在频域中提供完整的幅度和相位信息。然而,我们自己的分析表明,如果手稿中描述的实验按照作者描述的方式进行,实际上就不可能检索到完整的光场信息。我们的分析发现,作者描述的测量结果应仅提供与光谱仪提供的信息无异的光谱幅度信息。由于我们的调查结果,我们对论文关键主张的有效性表示严重担忧。
更新日期:2025-01-23
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