This study proposes and demonstrates a novel nanoclamp structure symmetrically disposed near a one-dimensional (1D) photonic crystal (PhC) nanocavity embedded in a deformable polydimethylsiloxane substrate. These nanoclamps show capabilities of locally shaping (including enhancing and inhibiting) the strain of PhC nanocavity. The produced artificial non-ideal elastomer leads to an enhanced wavelength response of −12.7 nm for every percentage compressive strain variation from the tunable PhC nanolasers in experiments. This result not only guarantees the excellent tunability of the 1D PhC nanolasers but also promises ultrahigh sensitivity in strain sensing. Moreover, such nanoclamps can further create a reconfigurable conversion between waveguide and nanocavity with a 1–2 order difference in the quality factor when applied to a 1D PhC waveguide. We believe this study provides a possibility for on-demand sculpturing of the optical properties of tunable PhC devices in the nanoscale by inserting additional nano- or micro-structures.

中文翻译：

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应变在光子晶体纳米腔中塑造光

这项研究提出并展示了一种新型纳米夹具结构，该结构对称地布置在嵌入可变形聚二甲基硅氧烷基板中的一维 (1D) 光子晶体 (PhC) 纳米腔附近。这些纳米夹具显示出局部成形（包括增强和抑制）PhC 纳米腔应变的能力。在实验中，对于来自可调 PhC 纳米激光器的每个百分比压缩应变变化，所生产的人造非理想弹性体导致 -12.7 nm 的增强波长响应。这一结果不仅保证了 1D PhC 纳米激光器的出色可调性，而且还保证了应变传感的超高灵敏度。此外，当应用于一维 PhC 波导时，这种纳米夹具可以进一步在波导和纳米腔之间创建可重构的转换，质量因数相差 1-2 级。