1974 年 43 巻 12 号 p. 1205-1212
Investigation has been made of the stabilization of the second harmonic wave (5320Å) of Nd3+: YAG laser used a commercial Ba2NaNb5O15 crystal. A well stabilized second harmonic wave was obtained 1) by stabilizing the output power of the fundamental wave (1. 064μ) within one percent per hour, and, 2) by controlling the fluctuation of the crystal temperature within 0. 05°C. In order to utilize the second harmonic wave as a Raman source, it was necessary to control the temperature of the Ba2NaNb5O15 crystal at phase matching temperature within 0. 08°C in comparison He-Ne laser of which the output stability is 5 percent per hour. The characteristics of the second harmonic wave were compared with those of the He-Ne laser. By using this stabilized second harmonic wave, the resonant Raman scattering phenomena of ZnTe have been measured.