Mid-infrared (mid-IR) refers to the range of wavelengths in the electromagnetic spectrum between near-infrared and far-infrared, typically spanning from around 2.5 to 25 micrometers. Research in the mid-IR region involves studying the properties and behavior of materials, molecules, and structures that interact with this specific range of wavelengths. Mid-IR research has applications in various fields such as spectroscopy, chemical analysis, environmental monitoring, and medical diagnostics. This region of the spectrum is particularly useful for identifying certain chemical compounds based on their unique absorption and reflection patterns in the mid-IR range. Overall, mid-IR research plays a crucial role in advancing technologies and understanding the physical and chemical properties of various materials, making it an important area of study in the scientific community.