Uploaded August 2026 | Updated September 2026, 2 weeks ago
In 1917, Einstein's work on stimulated emission was pure theoretical physics — an attempt to understand light-matter interaction, with no application in mind. This places it squarely in Bohr's Quadrant: research driven by the pursuit of fundamental understanding alone. It wasn't until decades later, in 1960, that scientists and engineers applied these principles to build the first working laser — turning Einstein's abstract theory into real-world technology.
In 1917, Einstein's work on stimulated emission was pure theoretical physics — an attempt to understand light-matter interaction, with no application in mind. This places it squarely in Bohr's Quadrant: research driven by the pursuit of fundamental understanding alone. It wasn't until decades later, in 1960, that scientists and engineers applied these principles to build the first working laser — turning Einstein's abstract theory into real-world technology.
