| Budget Amount *help |
¥24,050,000 (Direct Cost: ¥18,500,000、Indirect Cost: ¥5,550,000)
Fiscal Year 2017: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2016: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2015: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2014: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
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| Outline of Final Research Achievements |
We have aimed to realize an all-optical single-photon switch using a process called vacuum-induced transparency (VIT) that utilizes the resonator vacuum field. We have constructed a high-finesse optical resonator in order to increase the group delay of light pulses in VIT, which is estimated to provide us with a three-fold enhancement in the maximum atom-photon coupling strength compared to the previous work. We have also obtained a high degree of control over the position of a holographic optical trap, which should enable precise positioning of high-density atoms within the resonator mode, thus enabling precise control over the strength of atom-photon interaction. Moreover, we have implemented an indirect method of resonator stabilization using a transfer resonator in order to minimize the effects on the atoms of a laser field used for the stabilization. All together, these achievements constitute a large step towards the realization of an all-optical single-photon switch.
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