This article discusses foundational optical research from the 1960s rather than a formal modern quantum computing standard. The key technique highlighted is “two-photon detachment,” where two laser photons are used together to remove electrons from atoms, alongside early measurement protocols for tracking laser power and energy. NIST scientists Jan Hall and Lewis Branscomb led this work, developing calibration tools like calorimeters to ensure consistent and safe laser performance across military and civilian applications.
Though originating in the 1960s, these methods have already been implemented and continue to evolve into today’s quantum and optical technologies. They established the measurement practices that now support secure quantum cryptography, improved radar systems, and everyday laser devices like barcode scanners. By creating reliable ways to test and verify light-based tools, this early research continues to guide how engineers design, regulate, and improve quantum communication and precision technology worldwide.
Source: https://www.nist.gov/history/nists-role-laser-measurements-and-applications/1960s
Keywords: laser technology, two-photon detachment, quantum cryptography