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Third-Order Nonlinear Optical Properties of Sulfur-Rich Compounds
| Content Provider | Semantic Scholar |
|---|---|
| Author | Breitzer, Jonathan G. Dlott, Dana D. Iwaki, Lawrence K. Kirkpatrick, Sean M. Rauchfuss, Thomas B. |
| Copyright Year | 1999 |
| Abstract | The molecular third-order optical nonlinearity γR (second hyperpolarizability or nonlinear refractive index) was measured for a series of sulfur-rich molecules: sulfur (S 8), carbon-sulfur compounds, and metal thiolate clusters.Z-scan techniques (pulse width 27 ps, wavelength 527 nm) were used to measure these properties in solution by comparing the solution to the pure solvent. Our approach is an efficient way to evaluate a number of different compounds and to quickly direct synthetic strategies for improved nonlinear and linear optical properties. The optical nonlinearities were evaluated in terms of figures of merit, |W|/I0 and [T]-1, where |W|/I0 is the ratio of nonlinear refraction to linear absorption and [ T]-1 is the ratio of nonlinear refraction to nonlinear absorption. Among the carbon -sulfur compounds, C 6S8O2 had the largest figures of merit: |W|/I0 ) 4.3 × 10-13 m2 W-1 and [T]-1 > 5. The metal thiolate cluster with the largest second hyperpolarizability was [Zn10S4(SPh)16] (γR ) -7.8× 10-56 C m4 V-3, -6.3× 10-31 esu). This cluster exhibited no measurable linear or nonlinear absorption, so the figures of merit were effectively infinite. Previous work on the second hyperpolarizability of sulfur-rich compounds examined species that were hampered by substantial linear absorption coefficients. The present work shows that high figures of merit can be achieved without significant linear or nonlinear absorption. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.scs.illinois.edu/rauchfus/refs/nlo__with_Dlott.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | CT scan Carbon Dioxide Coefficient ELECTROSURGICAL DEVICE Emoticon Largest Nonlinear system Pulse-width modulation Synthetic intelligence Technetium Tc 99m Sulfur Colloid sequestering of metal ion wavelength width |
| Content Type | Text |
| Resource Type | Article |
