Mid-infrared photonics is an academic and technological field dedicated to the generation, manipulation, transmission, and detection of electromagnetic radiation within the mid-infrared spectral range, typically spanning wavelengths from approximately 2 to 20 micrometers. This research area investigates fundamental light-matter interactions specific to this region and focuses on the design, fabrication, and characterization of photonic devices and integrated systems critical for applications such as molecular spectroscopy, chemical and biological sensing, thermal imaging, and atmospheric monitoring due to the presence of strong molecular vibrational and rotational absorption features in this spectrum.