| Presentation | 1998/6/18 Experimental Study of Laser-induced Thermal Effect in BDN Dye Solution by Z-scan Methods Hongpu Li, Kazuhiko Ogusu, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this work, we study the nonlinearities of BDN dye solution in detail by using z-scan methods.The single beam z-scan experiment shows that the main origin of the intensity-dependent refractive index change is neither the population redistribution of the dye molecules nor the saturable absorption, but thermal, even though the pulse width of an incident beam is about 20 nanoseconds.Moreover, we have determined the fall time and the rise time of index change using single beam and two-color z-scan methods, respectively.The experimental results also show that the build up of the thermal lens is attributed to the photoacoustic effect and the rise time is proportional to the beam spot size.The fall time is determined by the thermal diffusion and is generally an order of milliseconds.For a tightly-focused beam, the rise time can be as fast as an order of ten nanoseconds. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Nonlinear refractive index / Saturable absorber / Z-scan method / Laser-induced thermal effect |
| Paper # | MW98-30,OPE98-22 |
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| Conference Information | |
| Committee | OPE |
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| Conference Date | 1998/6/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Optoelectronics (OPE) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Experimental Study of Laser-induced Thermal Effect in BDN Dye Solution by Z-scan Methods |
| Sub Title (in English) | |
| Keyword(1) | Nonlinear refractive index |
| Keyword(2) | Saturable absorber |
| Keyword(3) | Z-scan method |
| Keyword(4) | Laser-induced thermal effect |
| 1st Author's Name | Hongpu Li |
| 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 | 1998/6/18 |
| Paper # | MW98-30,OPE98-22 |
| Volume (vol) | vol.98 |
| Number (no) | 124 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |