Mid-infrared (mid-IR) refers to a specific range of wavelengths within the infrared spectrum, typically spanning from 2.5 to 25 micrometers. This region is particularly useful for a variety of applications, including chemical sensing, environmental monitoring, medical diagnostics, and industrial processes. Mid-IR radiation is absorbed by many molecules, making it ideal for identifying and analyzing chemical compounds. Researchers in the mid-IR field work with various techniques such as spectroscopy, imaging, and sensing to explore and detect materials based on their unique spectral fingerprints in this wavelength range. Additionally, advancements in mid-IR technology, such as the development of mid-IR lasers and sources, have expanded the capabilities and potential applications of this research area.