| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
An optical switch has been developed combining vanadium dioxide exhibiting a metal-insulator transition with a silicon waveguide for miniaturizing optical switches. At first, the light propagation simulation by the finite element method was performed, and it was confirmed that the designed device exhibits an optical switch function. It has been demonstrated that the fabricated device exhibits a good extinction ratio of over 30 dB due to the huge change in refractive index induced by the phase transition of vanadium dioxide.The obtained device property showed a good agreement with the result of the simulation. It was confirmed that the operating speed of the optical switch reached several tens of ns.
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