| Budget Amount *help |
¥43,160,000 (Direct Cost: ¥33,200,000、Indirect Cost: ¥9,960,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2019: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Fiscal Year 2018: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
Fiscal Year 2017: ¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
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| Outline of Final Research Achievements |
We have developed a technique for stacking nitride semiconductors (Al,Ga)N and ferroelectric Li(Nb,Ta)O3 by artificially inverting the crystal orientation, i.e., polarity or polarization, through surface-activated wafer bonding and epitaxial growth. We have also proposed a new wavelength conversion device based on this layered structure, and have successfully demonstrated ultra-broadband wavelength conversion from 229 to 460 nm using a channel waveguide-type wavelength conversion device that was actually fabricated. We have confirmed that these wavelength conversion devices have sufficient performance as a quantum light source, and have obtained the prospect of realizing an optical waveguide quantum computation platform, which was our initial goal, by combining an optical modulator and a pumping semiconductor laser that we also developed.
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