On-chip temporal focusing of elastic waves in a phononic crystal waveguide.
On-chip temporal focusing of elastic waves in a phononic crystal waveguide.
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DOI：
10.1038/s41467-018-03726-7
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发表时间：
2018-04-06
影响因子：
16.6
通讯作者：
Yamaguchi H
中科院分区：
文献类型：
--
作者：
Kurosu M;Hatanaka D;Onomitsu K;Yamaguchi H
在连续介质中操纵声波和弹性波形的能力已经引起了重大的研究兴趣，并且对于从生物成像到材料表征的实际应用至关重要。虽然已经开发了几种空间聚焦技术，但这些系统需要具有窄带宽的复杂谐振结构，这限制了它们的实际应用。在这里，我们展示了时间脉冲操纵色散一维声子晶体波导，这使得超声波传播的时间控制。利用啁啾脉冲实现了片上脉冲聚焦，聚焦时间和位置与理论预测完全一致。此外，行波四波混频实验的实施，提供了一个平台上实现新的非线性现象的系统。将这种色散脉冲工程方案应用到非线性声子晶体结构中，开辟了研究诸如声子孤子等新现象的可能性。在这里，作者演示了超声波在一维声子晶体波导中传播的时间控制。四波混频实验的实施，提供了一个平台上实现新的非线性现象的系统。
The ability to manipulate acoustic and elastic waveforms in continuous media has attracted significant research interest and is crucial for practical applications ranging from biological imaging to material characterization. Although several spatial focusing techniques have been developed, these systems require sophisticated resonant structures with narrow bandwidth, which limit their practical applications. Here we demonstrate temporal pulse manipulation in a dispersive one-dimensional phononic crystal waveguide, which enables the temporal control of ultrasonic wave propagation. On-chip pulse focusing is realized at a desired time and position with chirped input pulses that agree perfectly with the theoretical prediction. Moreover, traveling four-wave mixing experiments are implemented, providing a platform on which to realize novel nonlinear phenomena in the system. Incorporating this dispersive pulse engineering scheme into nonlinear phononic crystal architecture opens up the possibility of investigating novel phenomena such as phononic solitons. Here the authors demonstrate the temporal control of ultrasonic wave propagation in a one-dimensional phononic crystal waveguide. Four-wave mixing experiments are implemented, providing a platform on which to realize novel nonlinear phenomena in the system.
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影响因子：
16.6
作者：
Manenti R;Kockum AF;Patterson A;Behrle T;Rahamim J;Tancredi G;Nori F;Leek PJ
通讯作者：
Leek PJ
影响因子：
16.6
作者：
Blanco-Redondo, A.;Husko, C.;Eades, D.;Zhang, Y.;Li, J.;Krauss, T. F.;Eggleton, B. J.
通讯作者：
Eggleton, B. J.
DOI：
10.1109/2944.796320
发表时间：
1999-07-01
影响因子：
4.9
作者：
Esenaliev, RO;Karabutov, AA;Oraevsky, AA
通讯作者：
Oraevsky, AA
影响因子：
56.9
作者：
Fatemi, M;Greenleaf, JF
通讯作者：
Greenleaf, JF
影响因子：
3.8
作者：
Monat, C.;Ebnali-Heidari, M.;Krauss, T. F.
通讯作者：
Krauss, T. F.