| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Outline of Final Research Achievements |
Light wave has variety of physical quantities, such as wavelength, amplitude (intensity), polarization and phase. Recently, in the fields of semiconductor lasers, photonic-crystal lasers have been achieved to control beam shapes (intensity profiles), polarization, as well as wavelength by changing materials. Based on such background, in this research project, we have been attempted to realize special phase control by focusing on the flexibility of design of photonic-crystal lasers. In particular, by controlling the phase distribution towards circumferential direction, we tried to directly emit the doughnut shape beam called Laguerre-Gaussian beam.
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