| 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: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
With the goal of demonstrating our novel precision measurement method by utilizing an atomic wave soliton generated in a gaseous Bose-Einstein condensate, we developed new optical systems for generating the soliton through the stimulated Raman transition by laser beams with controlled wavefronts; a frequency-stabilized laser source, a laser wavefront control system, and so on. We originally designed a new frequency stabilization mechanism of a semiconductor laser with two interference filters, and constructed a 780 nm laser source with a narrow frequency linewidth of nearly 15 kHz and sufficient stability. The characteristics of the wavefront control system was confirmed in practice for several higher HG and LG modes. The stimulated Raman transition was also carried out preliminarily for Rb atoms in an atomic vapor cell at a normal temperature.
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