| Budget Amount *help |
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2017: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2016: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2015: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
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| Outline of Final Research Achievements |
Single photon detection and single molecule sensitivity have been achieved in the 1st and 2nd year of this project, respectively. Based on the achievements, the highly sensitive detection and the highly stabilized ambient STM system were combined in the final year. I have achieved 0.6 nm spatial resolution on the monolayer Graphene on Au(111), which is the highest spatial resolution ever achieved by tip-enhanced Raman spectroscopy in ambient condition. Due to the highly confined excitation by the tip-enhancement, the selection rule for Raman spectroscopy was found to be changed, which allows for the detection of forbidden phonon modes such as D-band. D-band was found to be activated by the tip-enhancement without defects. Moreover, forbidden combination modes of D+D’ band was also activated in the same manner.
I have also applied the highly sensitive detection to UHV-LT-STM and achieved the single molecule Raman detection from Cu-Naphthalocyanine on 3layers-NaCl/Ag(111).
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