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arXiv · 2505.24276

Versatile Lithium Niobate Platform for Photoacoustic/Thermoelastic Gas Sensing and Photodetection

Haoyang Lin·Wenguo Zhu·Yongchun Zhong·Huihui Lu·Jianhui Yu·Huadan Zheng
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Abstract

We present a lithium niobate multi-functional platform (LN-MFP) that integrates photoacoustic and thermoelastic spectroscopy with photodetection on a single chip. Utilizing LN's piezoelectric and thermoelastic properties and an optimized design, it achieves high sensitivity across visible to long-wave infrared wavelengths. We demonstrate photoacoustic/thermoelastic gas sensing and photodetection using LN-MFP. The compact, integrated system with custom packaging and direct wire bonding reduces complexity and size, enabling portable, scalable sensing for environmental and diagnostic applications.

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Haoyang Lin, Wenguo Zhu, Yongchun Zhong, Huihui Lu, Jianhui Yu, Huadan Zheng. 2025-05-30. Versatile Lithium Niobate Platform for Photoacoustic/Thermoelastic Gas Sensing and Photodetection. https://arxiv.org/abs/2505.24276

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