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arXiv · 2308.07764

Miniaturized Computational Photonic Molecule Spectrometer

Yujia Zhang·Xuhan Guo·Tom Albrow-Owen·Zhenyu Zhao·Yaotian Zhao·Tawfique Hasan·Zongyin Yang·Yikai Su
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Abstract

Miniaturized spectrometry system is playing an essential role for materials analysis in the development of in-situ or portable sensing platforms across research and industry. However, there unavoidably exists trade-offs between the resolution and operation bandwidth as the device scale down. Here, we report an extreme miniaturized computational photonic molecule (PM) spectrometer utilizing the diverse spectral characteristics and mode-hybridization effect of split eigenfrequencies and super-modes, which effectively eliminates the inherent periodicity and expands operation bandwidth with ultra-high spectral resolution. These results of dynamic control of the frequency, amplitude, and phase of photons in the photonic multi-atomic systems, pave the way to the development of benchtop sensing platforms for applications previously unfeasible due to resolution-bandwidth-footprint limitations, such as in gas sensing or nanoscale biomedical sensing.

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Yujia Zhang, Xuhan Guo, Tom Albrow-Owen, Zhenyu Zhao, Yaotian Zhao, Tawfique Hasan, Zongyin Yang, Yikai Su. 2023-08-15. Miniaturized Computational Photonic Molecule Spectrometer. https://arxiv.org/abs/2308.07764

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