| Budget Amount *help |
¥48,100,000 (Direct Cost: ¥37,000,000、Indirect Cost: ¥11,100,000)
Fiscal Year 2013: ¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
Fiscal Year 2012: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
Fiscal Year 2011: ¥24,830,000 (Direct Cost: ¥19,100,000、Indirect Cost: ¥5,730,000)
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| Outline of Final Research Achievements |
Toward the realization of photonic quantum memory, we studied on the system where a nitrogen vacancy center (NVC) in diamond is coupled to micro optical cavity with tapered optical fiber input/output. First, we successfully observed the first observation of an ultra-narrow linewidth (1.2 GHz) of the photoemission from a single NV center in a nanodiamond. We also realized a fiber-microsphere system at cryogenic temperature below 10K. We also successfully performed the optically detected magnet resonance of a single/few NV centers coupled with a tapered optical fiber. Finally, we succeeded in the realization of a nanofiber brag cavity and the highly efficient coupling of a single emitter to the system. These results are important steps for the realization of the photonic quantum memory.
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