[19a-P03-1~5] 3.4 Laser system and materials

[19a-P03-2] 【Absence】Characterization of Micro-Rod Nd,Ce:YAG Solar-Pumped Lasers

〇Yukiko Suzuki¹, Yohei Toriumi¹, Madoka Takahashi¹, Kazuo Hasegawa², Tomoyoshi Motohiro^2,3 (1.NTT Space Environment and Energy Laboratories, 2.GPI, 3.Nagoya Univ.)

Keywords:

laser,next-generation energy,solar-pumped laser

Nd, Ce: YAG, in which Ce³⁺ element is added as a sensitizer to sunlight, has recently attracted attention as a medium for solar-pumped lasers, which can convert sunlight into laser light with high efficiency. In this study, Nd, Ce: YAG single crystal medium of the microrod type which expected high heat radiation was produced, and the characteristic was evaluated. The appearance of the luminescence which indicated the effect of Ce³⁺ was observed from the fluorescence matrix. An oscillation experiment was carried out by focusing the sun using a parabolic mirror, and compared with the conventional Nd, Cr: YAG medium, it was confirmed that the oscillation was equivalent to or better than the conventional one.