Third-order optical non-linearities of excited states in diphenyl-polyene derivatives: a sub-picosecond study
| Autor: | Jean Oberle, Emmanuel Abraham, Gediminas Jonusauskas, Claude Rullière |
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| Přispěvatelé: | Centre de physique moléculaire optique et hertzienne (CPMOH), Université Sciences et Technologies - Bordeaux 1-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 1996 |
| Předmět: |
Kerr effect
02 engineering and technology 01 natural sciences Four-wave mixing chemistry.chemical_compound Optics 0103 physical sciences Electrical and Electronic Engineering Physical and Theoretical Chemistry [PHYS]Physics [physics] Physics [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] 010304 chemical physics business.industry Nonlinear optics Resonance 021001 nanoscience & nanotechnology Polyene Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Third order chemistry Picosecond Excited state 0210 nano-technology business |
| Zdroj: | Optics Communications Optics Communications, Elsevier, 1996, 124 (5-6), pp.616-627. ⟨10.1016/0030-4018(95)00675-3⟩ |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/0030-4018(95)00675-3 |
| Popis: | International audience; The third order optical non-linearities χ(3) of some excited diphenyl-polyene derivatives (t-stilbene, 1,4 diphenyl-butadiene, 1,6 diphenyl-hexatriene, 1,8 diphenyl-octatetraene) have been studied using Degenerate Four Wave Mixing (DFWM) and Optical Kerr Effect (OKE) on a sub-picosecond time-scale. Strong enhancements of χ(3) between ground and excited states are observed for some compounds and discussed taking into account the symmetry of excited states and resonance conditions. The dynamics of χ(3) has been measured and may show fast or slow regimes, depending on the compound. The spectral dependence of the real and imaginary part of the optical non-linearity have been measured. |
| Databáze: | OpenAIRE |
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