| Budget Amount *help |
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Outline of Final Research Achievements |
We have studied an optical system, which can performs a single-shot phase measurement in the 40 ps time domain by 25 GHz sampling between modes of the 200 GHz optical frequency comb. In case to apply this technology to transient response measurement, wideband and high-resolution phase spectrum measurement and control technology are required to achieve both time resolution and wide time window. A time parallel measurement system has been devised to enable the phase spectrum measurement to be obtained by a phase detection circuit. The amplitude and phase spectra were measured at 375 GHz (25 GHz, 15 modes), and it was experimentally demonstrated that ultrafast optical electric field waveforms with a 2.7 ps resolution and a 40 ps time range can be measured.
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