Presentation | 1998/1/22 Optical intensity distribution of thermally-induced diffraction rings from an absorbing solution and its temporal response Yasuo YOKOTA, Kazuhiko OGUSU, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | We present an experimental and theoretical study of diffraction rings of an Ar^+ laser beam from a nitrobenzene solution of BDN caused by a change in the refractive index due to a thermal effect. A cw incidence and a square-pulse train incidence are used in this study. For the cw incidence, we compare the measured ring patterns with the theoretical results based on the Fraunhofer diffraction. It is found that the amplitude and phase shift profiles of the beam are broadened owing to self-defocusing and thermal diffusion. For the pulsed incidence, we derive the temporal change in the temperature rise of the absorbing liquid. We can observe distinct rings when the repetition of the incident pulse is faster than the relaxation time due to the thermal diffusion. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | diffraction rings / spatial self-phase modulation / thermal effect |
Paper # | OPE97-132 |
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Committee | OPE |
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Conference Date | 1998/1/22(1days) |
Place (in Japanese) | (See Japanese page) |
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Registration To | Optoelectronics (OPE) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Optical intensity distribution of thermally-induced diffraction rings from an absorbing solution and its temporal response |
Sub Title (in English) | |
Keyword(1) | diffraction rings |
Keyword(2) | spatial self-phase modulation |
Keyword(3) | thermal effect |
1st Author's Name | Yasuo YOKOTA |
1st Author's Affiliation | Faculty of Engineering, Shizuoka University() |
2nd Author's Name | Kazuhiko OGUSU |
2nd Author's Affiliation | Faculty of Engineering, Shizuoka University |
Date | 1998/1/22 |
Paper # | OPE97-132 |
Volume (vol) | vol.97 |
Number (no) | 496 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |