2017 Fiscal Year Final Research Report
Topological nonlinear optics based on optical vortex parametric lasers
| Project/Area Number |
15H03571
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Optical engineering, Photon science
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| Research Institution | Chiba University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 光渦 / 特異点光学 / 非線形光学 / レーザー / 光物性 |
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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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| Free Research Field |
非線形光学
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