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Comment on 'Observation of Fourier transform limited lines in hexagonal boron nitride'

机译:评论“六角形氮化物中傅立叶变换限量线”的观察“

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摘要

Recently, emission linewidths of single defect centers in layered hexagonal boron nitride down to 50 MHz were reported, close to the lifetime limit. The linewidths were extracted from time traces of laser scanning photoluminescence excitation experiments. At the same time, temporal blinking was affecting the measured time traces even in the absence of a frequency scanning the excitation laser. I argue here that the reported temporal blinking timescale is consistent with the observed transients, implying that the interpretation as spectral shapes and thus the extracted linewidths are invalid.
机译:最近,报告了分层六边形氮化物中的单缺陷中心的排放线宽,下降至50MHz,接近寿命限制。从激光扫描光致发光励磁实验的时间痕量提取线宽。同时,即使在没有频率扫描激光激光的情况下,也会影响测量的时间迹线。我在这里争辩说报告的时间闪烁时间尺度与观察到的瞬变一致,这意味着解释为频谱形状,因此提取的换行宽度无效。

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  • 来源
    《Physical review》 |2019年第4期|047401.1-047401.1|共1页
  • 作者

    Langbein W.;

  • 作者单位

    Cardiff Univ Sch Phys & Astron Cardiff CF24 3AA S Glam Wales;

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  • 正文语种 eng
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