| Budget Amount *help |
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2017: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2015: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
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| Outline of Final Research Achievements |
We have developed over 2-octave ultra-broadband tunable optical vortex parametric laser based on a vortex-pumped optical parametric oscillator by employing non-critical phase-matching LiB3O5 crystal with a 45mm length. With this system, a vortex output was generated within an extremely wide wavelength range of 0.67-2.57 um. Further, the generation of an eitire mid-infrared (6-18 um) optical vortex output with a milli-joule level pulse energy has been demonstrated by utilizing a AgGaSe2 difference frequency generator pumped by a vortex parametric oscillator. The handedness of the midinfared vortex output can be controlled selectively by swapping the lasing wavelengths of the signal and idler outputs.
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