How did Schawlow improve laser spectroscopy?
The beauty of a laser, as Charlie Townes and I envisioned, is its ability to generate a highly coherent and monochromatic beam. My focus was on exploiting this for spectroscopy. By tuning the laser's frequency to match specific energy transitions within atoms and molecules, we could observe absorption or emission with unprecedented detail. This is like finding the exact resonant frequency to make a specific tuning fork vibrate. It allowed us to resolve spectral lines that were blurred together before, leading to a much deeper understanding of atomic and molecular physics. Our work in 'Laser Spectroscopy of Atoms and Molecules' really laid this out.
Ask Arthur Leonard Schawlow the follow-up →