Which was true about the first design of a LASER?

• A. It was built by Gordon Gould
• B. It was designed on paper by Gordon Gould in 1957
• C. It utilized a semiconductor mechanism
• D. It was created prior to 1950

Answer: (B)

The choice stating that the first design of a LASER was designed on paper by Gordon Gould in 1957 is correct because it accurately reflects the historical context of LASER development. In 1957, Gordon Gould conceptualized the LASER (Light Amplification by Stimulated Emission of Radiation) and described its functioning theoretically. His formulation included the idea of using an optical cavity to amplify light, which laid the groundwork for the development of the first LASER technology. This theoretical groundwork was crucial because it defined the principles of stimulated emission, which is essential to how LASERs operate.

Understanding Gould's work is vital as it represents a significant milestone in photonics. While subsequent advancements led to the physical realization of LASERs, Gould's contributions were instrumental in propelling further research and innovation in this field.

This emphasizes the importance of theoretical contributions in scientific advancements, showcasing how ideas on paper can lead to groundbreaking inventions and technologies.