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<p>We report, to the best of our knowledge, the first realization of an electrically-biased, resonant-cavity metallic photonic-crystal (PC) emitter. The PC device is electrically-biased and is driven out of thermal equilibrium. The PC emission exhibits a strongly nonlinear input-output power characteristic at the resonant peak wavelength, λ ~ 1.7 μm. Particularly, at lower bias, the emission power shows an exponential growth over 3 orders-of-magnitude. At higher bias, the growth slows down and shows a linear dependence on input power. This observed output/input characteristic may arise from non-equilibrium injection of hot electrons, the excitation of localized surface plasmons at the interior surfaces of the PC and photon emission to optical passband modes of the PC/ resonant cavity structure.</p>

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Observation of nonlinear input-output power characteristic of light emission from an electrically-biased metallic photonic crystal

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年5月8日

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  • Mei-Li Hsieh,
  • Tyler Romero,
  • J. A. Bur,
  • Xuanjie Wang,
  • Jhih-Sheng Wu,
  • Shankar Narayan,
  • Sajeev John,
  • Shawn-Yu Lin

摘要

We report, to the best of our knowledge, the first realization of an electrically-biased, resonant-cavity metallic photonic-crystal (PC) emitter. The PC device is electrically-biased and is driven out of thermal equilibrium. The PC emission exhibits a strongly nonlinear input-output power characteristic at the resonant peak wavelength, λ ~ 1.7 μm. Particularly, at lower bias, the emission power shows an exponential growth over 3 orders-of-magnitude. At higher bias, the growth slows down and shows a linear dependence on input power. This observed output/input characteristic may arise from non-equilibrium injection of hot electrons, the excitation of localized surface plasmons at the interior surfaces of the PC and photon emission to optical passband modes of the PC/ resonant cavity structure.