1997 Fiscal Year Final Research Report Summary
Development of Tunable Squeezed-light Source and Its Application to Spectroscopy
| Project/Area Number |
08459001
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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 |
広領域
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| Research Institution | Tohoku University |
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Principal Investigator |
EDAMATSU Keiichi Graduate School of Engineering, Associate Professor, 大学院・工学研究科, 助教授 (10193997)
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| Co-Investigator(Kenkyū-buntansha) |
ITOH Tadashi Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (60004503)
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| Project Period (FY) |
1996 – 1997
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| Keywords | Quantum optics / Nonlinear optics / Squeezed light / Squeezing / Optical parametric oscillation / second harmonic generation / Laser / Quantum dot |
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| Research Abstract |
We generate amplitude squeezed light tunable around 430nm using a frequency-doubling ring cavity with a KNbO_3 crystal. The cavity is pumped by a single-frequency Ti : sapphire laser, which is pumped by a frequency-doubled all solid-state Nd : YVO_4 laser. The degree of squeezing is O.2dB at 20MHz with second harmonic (fundamental) power of 95mW (300mW). The observed degree of squeezing is consistent with theoretical calculation applicable to our cavity, but smaller than a previously reported value. We also study the optical properties of CuCI and ZnCdSe quantum dots, for future application to solid-state spectroscopy with squeezed or nonclassical light.
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