Micro-optics refers to the study and application of optical components and systems that are on a microscale, typically ranging from a few micrometers to a few millimeters in size. These tiny optical elements, such as lenses, mirrors, prisms, and diffraction gratings, are used in various technological applications, including imaging, sensing, communications, and light manipulation. Micro-optics enables the miniaturization of optical systems, making them more compact, lightweight, and cost-effective. This research area involves the design, fabrication, and characterization of micro-scale optical components using advanced lithography, etching, and deposition techniques. Additionally, micro-optics plays a crucial role in emerging fields such as microfluidics, biosensors, and virtual reality. Overall, micro-optics is a multidisciplinary field that combines principles of optics, materials science, and microfabrication to create innovative devices with a wide range of practical applications.