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Creator | Title | Description | Subject | Date |
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Vardeny, Zeev Valentine | Femtosecond dynamics of the nonlinear optical response in polydiethynylsilane | We have measured the femtosecond dynamics of the nonlinear optical response xc3' in polydiethynylsilane ( C4H2SiBu2)x, a novel class of r-conjugated polymers incorporating Si, using degenerate four-wave mixing and photoinduced absorption techniques. In resonance conditions at 620 nm we found x (3) ... | Polydiethynylsilane; Femtosecond dynamics; Nonlinear optical response; Pi-conjugated polymers | 1991 |
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Symko, Orest George; Vardeny, Zeev Valentine | Quasiparticle relaxation in a high-Tc superconductor | Recent measurements by Eesley et al. [1] of transient reflectivity in superconducting Tl2Ba2Ca2Cu30io were interpreted as evidence for order-parameter relaxation in the vicinity of Tc, which was analyzed in terms of BCS weak coupling for A(r)/A(0). In this Comment we question this interpretation ... | Quasiparticle relaxation; High-tc | 1991 |
3 |
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Vardeny, Zeev Valentine; Symko, Orest George | Quasiparticle relaxation in high-Tc superconductor | Recent measurements by Eesley et al. [1] of transient reflectivity in superconducting Tl2Ba2Ca2Cu30io were interpreted as evidence for order-parameter relaxation in the vicinity of Tc, which was analyzed in terms of BCS weak coupling for ?(r)/?(0). In this Comment we question this interpretation ... | Quasiparticle relaxation | 1991 |
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Vardeny, Zeev Valentine | Studies of resonant and preresonant femtosecond degenerate four-wave mixing in unoriented conducting polymers | Degenerate four-wave mixing with femtosecond time resolution is used to measure the magnitude and transient response of the third-order nonlinear optical susceptibility x(3) (ω;ω, -ω,ω) at 620 nm in nonoriented conducting polymers including polydiacetylene, polyacetylene, polyaniline, polydieth... | Pi-conjugated polymers | 1991 |