Far UV (far-ultraviolet) research focuses on studying the electromagnetic spectrum in the wavelength range of approximately 100-200 nanometers. This area of research is important for understanding processes such as photochemistry, photophysics, and ionization in various physical and biological systems. Far UV radiation has unique properties that make it useful for applications in areas such as astronomy, atmospheric science, and semiconductor technology. Researchers in this field often use specialized instrumentation, such as far UV spectrographs and detectors, to study the effects of far UV radiation on different materials and biological systems.