But to make things even clearer, you might want to take a step inside the laser with something like [Les Wright]’s open-cavity He-Ne laser. In most gas lasers, the stimulated emission action ...

Optical cavities are essential components of lasers, providing the necessary feedback and amplification for light emission. The cavity's resonance properties determine the laser's wavelength, ...

Using electron paramagnetic resonance (EPR) spectroscopy, Fe3+ and Cr3+ defects were detected in as-received ... To further study the samples we applied light illumination, also referred to as ...