Based in New Jersey, Tarek Al-Aydi is a longtime medical sales executive who has held team leadership responsibilities with companies such as Thermo Fisher Scientific and Metrohm USA. With the latter firm, Tarek Al-Aydi served as a titration and spectroscopy specialist. As a discipline, spectroscopy deals with how light disperses into a variety of component energies. An understanding of how forms of electromagnetic radiation, from fluorescence to UV light, interact with matter allows health care professionals, as well as professionals in disciplines such as astronomy, to infer physical properties about an object. Within the medical sphere, spectroscopic analysis involves the use of instruments that emit an energy source and are paired with a device that measures how that energy source changes after interacting with a sample. In most cases, the energy source is a laser, but ion and radiation sources also exist. Results are generated by directing light through an entrance slit, lens, and light dispersing prism, with an exit slit allowing frequencies to escape that are measured and analyzed.