| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Outline of Final Research Achievements |
We proposed a novel crystal growth technique as “Sandwiched sub-nano separation (SSNS)” to obtaine a high-quality and high-density quantum dots, and then a broad band semiconductor optical amplifier device for a wavelength between 1250 and 1310 nm was successfully developed. We conducted research aiming at efficient coupling of quantum dot optical amplifier and nano-structured device such as a plasmonic device. We found that the photonic nanotube structure can converge the light waves to several 100 nm or less. A quantum dot optical gain device and silicon nano-wire waveguide ring resonator of several 100 nm size were effectively coupled with a butt-joint technique, and we succeeded in first developing the broadband heterogeneous quantum dot laser. These are important fundamental technologies for amplifying and compensating for the optical loss due to the nano-structured device with quantum dot optical gain device, and it has become a remarkable research result of invited papers etc.
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