Lasers: Well-Behaved Light

The theoretical foundations of the laser were put forward by Einstein in 1917 but it wasn’t until the 1940s that physicists found applications for his ideas. Nowadays, lasers are responsible for a multi-billion pound industry which includes correcting vision defects through laser eye surgery and sending data across the globe via optical communication. The operationContinue reading “Lasers: Well-Behaved Light”