BRIEF COMMUNICATIONS: Laser with a waveguide-type traveling-wave ring resonator
Laser emission was obtained from rhodamine 6G in a traveling-wave ring resonator. The excitation was provided by the second-harmonic of Nd laser radiation. The ring resonator was in the form of a thin gelatin film on a glass rod. The concentration of rhodamine 6G in this film was 10–3–10–2 mole/liter.