Cavity-enhanced harmonic generation in silicon rich nitride photonic crystal microresonators
Cavity-enhanced harmonic generation in silicon rich nitride photonic crystal microresonators
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DOI：
10.1063/1.5066996
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发表时间：
2019-04
影响因子：
4
通讯作者：
M. Clementi;K. Debnath;M. Sotto;A. Barone;A. Khokhar;T. D. Bucio;S. Saito;F. Gardes;D. Bajoni;M. Galli
中科院分区：
文献类型：
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作者：
M. Clementi;K. Debnath;M. Sotto;A. Barone;A. Khokhar;T. D. Bucio;S. Saito;F. Gardes;D. Bajoni;M. Galli
我们报告了在电信波长的谐振连续波激发下，在悬浮的富硅氮化物膜中制造的光子晶体腔中产生的二次和三次谐波。采用具有远场优化线宽调制设计的二维光子晶体腔。基波波长高达 Q = 1.3 × 104 的品质因数和耦合效率 ηc ≈ 30% 使我们能够利用腔场增强来实现发电效率 ρSH = (4.7 ± 0.2) × 10−7 W−1 和 ρTH = (5.9 ± 0.3) × 10−5 W−2。高功率下不存在饱和效应以及器件在二次谐波波长下的透明度表明不存在双光子吸收和相关的有害影响。我们报告了在电信波长的谐振连续波激励下，在悬浮的富硅氮化物膜中制造的光子晶体腔中产生二次和三次谐波。采用具有远场优化线宽调制设计的二维光子晶体腔。基波波长高达 Q = 1.3 × 104 的品质因数和耦合效率 ηc ≈ 30% 使我们能够利用腔场增强来实现发电效率 ρSH = (4.7 ± 0.2) × 10−7 W−1 和 ρTH = (5.9 ± 0.3) × 10−5 W−2。高功率下不存在饱和效应以及器件在二次谐波波长下的透明度表明不存在双光子吸收和相关的有害效应。
We report second and third harmonic generation in photonic crystal cavities fabricated in a suspended silicon-rich nitride membrane under resonant continuous-wave excitation at telecom wavelength. Two-dimensional photonic crystal cavities with a far-field optimized line-width modulated design were employed. A quality factor at fundamental wavelength as high as Q = 1.3 × 104 and a coupling efficiency ηc ≈ 30% enabled us to exploit the cavity field enhancement to achieve the generation efficiencies ρSH = (4.7 ± 0.2) × 10−7 W−1 and ρTH = (5.9 ± 0.3) × 10−5 W−2. The absence of saturation effects at high power and the transparency of the device at the second harmonic wavelength suggest the absence of two-photon absorption and related detrimental effects.We report second and third harmonic generation in photonic crystal cavities fabricated in a suspended silicon-rich nitride membrane under resonant continuous-wave excitation at telecom wavelength. Two-dimensional photonic crystal cavities with a far-field optimized line-width modulated design were employed. A quality factor at fundamental wavelength as high as Q = 1.3 × 104 and a coupling efficiency ηc ≈ 30% enabled us to exploit the cavity field enhancement to achieve the generation efficiencies ρSH = (4.7 ± 0.2) × 10−7 W−1 and ρTH = (5.9 ± 0.3) × 10−5 W−2. The absence of saturation effects at high power and the transparency of the device at the second harmonic wavelength suggest the absence of two-photon absorption and related detrimental effects.