| Project/Area Number |
25560423
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Basic / Social brain science
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| Research Institution | Saitama University |
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Principal Investigator |
NAKAI Junichi 埼玉大学, 脳科学融合研究センター, 教授 (80237198)
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| Co-Investigator(Renkei-kenkyūsha) |
ANDO Keiko 埼玉大学, 脳科学融合研究センター, 特任准教授 (40221741)
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| Project Period (FY) |
2013-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
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| Keywords | オプトジェネティクス / 光遺伝学 / KTN結晶 / 第二高調波発生 |
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| Research Abstract |
In this study we developed a tunable wavelength photo-stimulation equipment. We could generate second harmonic waves ranging from ~400 nm to ~500 nm with a fun-out type periodically polarized crystal. So this equipment can photo-stimulate GFP, channelrhodopsin, and many other photosensitive molecules. In the system we also equipped a pair of potassium tantalate niobate (KTN) crystals as a tunable lens, an electro-optic device that changes its refractive index by voltage. By changing the voltage which applied to the tunable KTN lens, focus changed within ~20 microseconds. The speed of focus change was about 500~1000 times faster than that of the conventional piezo focuser. This technique can be applicable not only to scientific researches including brain science but also industrial field such as laser processing and laser measurement.
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