Photochemical reaction of divalent-germanium center in germanosilicate glasses under intense near-ultraviolet laser excitation: Origin of 5.7 eV band and site selective excitation of divalent-germanium center

Masahide Takahashi, Kentaro Ichii, Yomei Tokuda, Takashi Uchino, Toshinobu Yoko, Junji Nishii, Takumi Fujiwara

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Physics & Astronomy