Laser-Induced Graphene (LIG) based diffraction optical systems and implementation of higher precision attitude measurement sensor

In the realm of modern advanced optical systems, such as those integrated into IoT devices, mobile phones, micro-satellites, and AR/VR devices, there is a growing demand for lighter and more compact solutions. Conventional optical elements relying on refraction encounter limitations stemming from the constraints of lens shape and refractive index. To address this challenge, we propose a novel approach employing laser-induced graphene-based diffraction elements created through direct laser writing. Employing the direct laser drawing method with an ultrafast laser facilitates the effortless creation and utilization of a diffraction pattern by irradiating a colorless polyimide (CPI) film. Through this technique, we have achieved the development of a satellite attitude control device capable of generating and deploying a Fresnel zone plate (FZP).