An antenna can theoretically emit light as it transmits electromagnetic (EM) waves, but practical implementation poses significant challenges. The wavelength of visible light, such as red light at 694nm, necessitates an antenna design that is impractically small, making it difficult to visualize and fabricate. A proposed solution involves creating an array of light-emitting antennas on a metallic wafer, similar to semiconductor manufacturing. The discussion also raises the question of whether lasers are more efficient than LEDs in converting electricity to light, indicating a need for comparative analysis.
PREREQUISITESEngineers, physicists, and researchers interested in advanced antenna technology, light emission methods, and efficiency comparisons in optical devices.