29 February 2012 White-light lasing in ZnO microspheres fabricated by laser ablation
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Proceedings Volume 8263, Oxide-based Materials and Devices III; 82630K (2012) https://doi.org/10.1117/12.907595
Event: SPIE OPTO, 2012, San Francisco, California, United States
We succeeded in fabricating ZnO microspheres with high sphericity by laser ablation in superfluid helium. Such microspheres enable efficient lasing in the whole visible region due to defects with a CW laser at room temperature. The lasing threshold is found to be around 100 W/cm2. This value is much smaller than those of the recent reports on the lasing in ZnO microwire. Cathodoluminescence of single ZnO microspheres was also measured.
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Shinya Okamoto, Shinya Okamoto, Yosuke Minowa, Yosuke Minowa, Masaaki Ashida, Masaaki Ashida, } "White-light lasing in ZnO microspheres fabricated by laser ablation", Proc. SPIE 8263, Oxide-based Materials and Devices III, 82630K (29 February 2012); doi: 10.1117/12.907595; https://doi.org/10.1117/12.907595

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