| Presentation | 1993/4/23 Acoustic Nonlinear Effect in Superfluid Yasuo Sasaki, Hidenobu Kishi, Koichi Karaki, Yuichi Okuda, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have measured input vs.output characterics of focused acoustic wave in superfluid microscope in a confocal configuration and observed a unique nonlinear effect,which has a strong pressure dependence.We have further performed the same measurements with different lens-to- reflector distances,and found that effective focal length becomes longer with increasing input power at high pressure region.The new experiment is now in progress to determine the distribution of the amplitude and phase modulation by nonlinear effect as a function of incident angle in focused acoustic wave,by measuring a complex V(z) curve.This method can be widely applied to investigate nonlinear propagation of focused acoustic wave in other fluids. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | acoustic microscope / superfluid / helium / self-defocusing |
| Paper # | US93-6 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 1993/4/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Acoustic Nonlinear Effect in Superfluid |
| Sub Title (in English) | |
| Keyword(1) | acoustic microscope |
| Keyword(2) | superfluid |
| Keyword(3) | helium |
| Keyword(4) | self-defocusing |
| 1st Author's Name | Yasuo Sasaki |
| 1st Author's Affiliation | Research Department,Olympus Optical Co.,Ltd.() |
| 2nd Author's Name | Hidenobu Kishi |
| 2nd Author's Affiliation | Department of Applied Physics,Faculty of Science,Tokyo Institute of Technology |
| 3rd Author's Name | Koichi Karaki |
| 3rd Author's Affiliation | Research Department,Olympus Optical Co.,Ltd. |
| 4th Author's Name | Yuichi Okuda |
| 4th Author's Affiliation | Department of Applied Physics,Faculty of Science,Tokyo Institute of Technology |
| Date | 1993/4/23 |
| Paper # | US93-6 |
| Volume (vol) | vol.93 |
| Number (no) | 8 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |