| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Research Abstract |
The fabrication method of the ZnO nanosheets has been established, where the ZnO nanowalls are synthesized by nanoparticles-assisted pulsed laser deposition and then the nanowalls are lifted off by laser irradiation form a substrate. Nano-structuring of on the nanosheets has been achieved by Ga ion beam and laser processing using silica micro lens. It is also proposed that an irregular-shaped ZnO nanosheet acts as a random laser chip. Based on this idea, the random lasing in a single irregular-shaped ZnO nanosheet with a low threshold power of 150 kW/cm2 is successfully demonstrated.
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