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arXiv physics/0607144physics.optics
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波导中的黑洞:霍金辐射还是自相位调制?

Black hole in a waveguide: Hawking radiation or self-phase modulation?

Igor I. Smolyaninov

摘要:

最近有人提出,当光脉冲在非线性电磁波导中传播时,可以观察到霍金辐射。我们表明,在这样的波导中的霍金效应的光谱特性是无法区分的光脉冲的频率展宽,由于自相位调制的众所周知的效果。此外,我们得到了霍金效应由自相位调制主导的临界光功率的估计。看来,迄今为止报道的光学实验显然是由自相位调制。

英文摘要:

Recently it was suggested that Hawking radiation may be observed in a nonlinear electromagnetic waveguide upon propagation of an optical pulse. We show that the spectral characteristics of the Hawking effect in such a waveguide are indistinguishable from the well-known effect of frequency broadening of an optical pulse due to self-phase modulation. Furthermore, we derive an estimate on the critical optical power at which Hawking effect is dominated by the self-phase modulation. It appears that optical experiments reported so far are clearly dominated by self-phase modulation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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