| Budget Amount *help |
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2018: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2016: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2015: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
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| Outline of Final Research Achievements |
Employing first-principles calculations based on time-dependent density functional theory, we have investigated various optical phenomena that take place in dielectrics and semi-conductors under an irradiation of a high-intensity ultrashort pulsed light. It has been shown that the optical properties of matters change in the time-scale less than a period of the pulsed light due to the dynamical Franz-Keldysh effect. We elucidated the phenomena under the collaboration with attosecond experimental groups. Using the method, we have also explored high harmonic generations in solids and the mechanism of energy transfer from the pulsed light to electrons in the matter. The program codes developed in these studies have been made open to the public as an open source software, SALMON, and is downloadable at the website, https://salmon-tddft.jp.
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