| Budget Amount *help |
¥27,040,000 (Direct Cost: ¥20,800,000、Indirect Cost: ¥6,240,000)
Fiscal Year 2014: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2012: ¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
Fiscal Year 2011: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
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| Outline of Final Research Achievements |
The 1st target of this research is to improve the performance of the silicon photonic crystal nanocavities. Especially, I focused on increasing the Q factor and reducing the fluctuation of the resonant wavelength. The 2nd target is to investigate the mechanism of enhancement of the nonlinear effects in the high-Q nanocavities. For these 4 years, I have successfully increased the Q factor to 9 million from 2.5 million and reduced the fluctuation of resonant wavelength to 0.2 nm from a few nm. Furthermore, I have developed a continuous-wave Raman silicon laser using a high-Q nanocavity, with a cavity size of less than 10 micrometers and an unprecedented ultralow threshold of 1 microwatt. These achievements are attracting much attention.
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