Observation of Upconversion Lasing within a Thulium-Ion-Doped Glass Powder Film Containing Titanium Dioxide Particles
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概要
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We demonstrated the upconversion lasing of a random medium composed of thulium-ion-doped fluorozirconate glass powders and submicrometer-sized titanium dioxide particles. Blue and red lasing emissions were induced by near-infrared excitation light via sequential multiphoton excitation, which enabled a highly efficient pumping of the gain particles within the random medium. The thresholds of the upconversion lasing were determined to be 2.6 and 6.3 kW/cm2 in 800-nm and 450-nm wavelength regions, respectively.
- Japan Society of Applied Physicsの論文
- 2004-10-15
著者
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SASAKI Keiji
Research Institute for Electronic Science, Hokhaido University
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Fujiwara Hideki
Crest Japan Science And Technology Agency
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Sasaki Keiji
Research Institute For Electronic Science Hokkaido University
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