针对商用低精度惯性测量单元具有高成本、制造工艺复杂、废弃后污染环境、不能生物降解等缺点，提出一种低成本、可生物降解的木制惯性测量单元。该设计包含平衡振子和非平衡振子单元，分别用于测量3轴加速度和3轴角加速度。采用激光诱导石墨烯的工艺在木梁上制备应变传感器阵列，并形成多组惠斯顿电桥测量电路。结果表明：加速度方面，X轴灵敏度为0.006 mV/g，Y轴灵敏度为8.695×10^-4 mV/g，Z轴灵敏度为0.200 mV/g；角加速度方面，X轴灵敏度为0.285 mV/（rad/s²），绕Y轴旋转的灵敏度为0.305 mV/（rad/s²），绕Z轴旋转的灵敏度为0.765 mV/（rad/s²）。与有限单元法仿真结果对比，实验测量误差在10%以内，且具有良好的重复测量精度。该惯性测量单元在木制船舶、木制载具、木制家具等方面具有潜在的应用前景。

石墨烯作为一种新型半金属材料，具有良好的导电性、光学透明度和机械性能，自发现以来备受研究者关注。特别是石墨烯的零带隙狄拉克色散关系赋予其特殊的光电性质，如宽带光吸收和高载流子迁移率，使得石墨烯基光电探测器具有宽广谱检测和快速响应能力。然而，传统的石墨烯制备方法包括机械剥离法、化学气相沉积法和氧化还原法等存在产量低、设备昂贵、工艺复杂和化学污染等问题。除此之外，单层石墨烯光吸收率和载流子寿命短，严重影响了石墨烯光电探测器的响应度。为了解决上述问题，文中采用一步激光刻蚀法在三聚氰胺-聚酰亚胺复合薄膜上原位诱导生成氮掺杂的多孔石墨烯，制备了光响应增强的石墨烯宽光谱探测器。这种激光直写的制备工艺效率高、成本低、无污染，可快速制备石墨烯光电探测器。经测试，该探测器在630 nm可见光辐照下的光响应度为2.17 mA·W⁻¹，相比未掺杂的激光诱导石墨烯光电探测器的响应度提高了一个数量级。此外，该探测器在343 nm紫外和1 550 nm红外波段都具有光响应能力，响应度分别为3.06、2.63 mA·W⁻¹。该方法为简单、高效、低成本制备高性能石墨烯基光电器件提供了可行性方案。

Laser writing is a fast and efficient technology that can produce graphene with a high surface area, whereas laser-induced graphene (LIG) has been widely used in both physics and chemical device application. It is necessary to update this important progress because it may provide a clue to consider the current challenges and possible future directions. In this review, the basic principles of LIG fabrication are first briefly described for a detailed understanding of the lasing process. Subsequently, we summarize the physical device applications of LIGs and describe their advantages, including flexible electronics and energy harvesting. Then, chemical device applications are categorized into chemical sensors, supercapacitors, batteries, and electrocatalysis, and a detailed interpretation is provided. Finally, we present our vision of future developments and challenges in this exciting research field.Laser writing is a fast and efficient technology that can produce graphene with a high surface area, whereas laser-induced graphene (LIG) has been widely used in both physics and chemical device application. It is necessary to update this important progress because it may provide a clue to consider the current challenges and possible future directions. In this review, the basic principles of LIG fabrication are first briefly described for a detailed understanding of the lasing process. Subsequently, we summarize the physical device applications of LIGs and describe their advantages, including flexible electronics and energy harvesting. Then, chemical device applications are categorized into chemical sensors, supercapacitors, batteries, and electrocatalysis, and a detailed interpretation is provided. Finally, we present our vision of future developments and challenges in this exciting research field.

Terahertz (THz) absorbers for imaging, sensing, and detection are in high demand. However, such devices suffer from high manufacturing costs and limited absorption bandwidths. In this study, we presented a low-cost broadband tunable THz absorber based on one-step laser-induced graphene (LIG). The laser-machining-parameter-dependent morphology and performance of the absorbers were investigated. Coarse tuning of THz absorption was realized by changing the laser power, while it was fine-tuned by changing the scanning speed. The proposed structure can achieve over 90% absorption from 0.5 THz to 2 THz with optimized parameters. The LIG method can help in the development of various THz apparatuses.