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Dr. V P N Nampoori >
Please use this identifier to cite or link to this item:
http://purl.org/purl/2575
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| Title: | Simultaneous determination of nonlinear optical and thermo-optic parameters of liquid samples |
| Authors: | Santhi, A
Vinu V, Namboodiri
Radhakrishnan, P
Nampoori, V P N
Technology |
| Keywords: | photothermal effects
phase modulation
thermal lensing
high-speed optical techniques
optical saturable absorption
optical materials
organometallic compounds |
| Issue Date: | 2006 |
| Publisher: | American Institute of Physics |
| Abstract: | The authors apply the theory of photothermal lens formation and also that of pure optical nonlinearity to account for the phase modulation in a beam as it traverses a nonlinear medium. It is used to simultaneously determine the nonlinear optical refraction and the thermo-optic coefficient. They demonstrate this technique using some metal phthalocyanines dissolved in dimethyl sulfoxide, irradiated by a Q-switched Nd:YAG laser with 10 Hz repetition rate and a pulse width of 8 ns. The mechanism for reverse saturable absorption in these materials is also discussed. |
| URI: | http://dyuthi.cusat.ac.in/purl/2575 |
| Appears in Collections: | Dr. V P N Nampoori
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