Studies of the fifth-order nonlinear susceptibility of ultraviolet-grade fused silica
Katrin EkvallDepartment of Physics I, Royal Institute of Technology, S-100 44 Stockholm, SwedenCecilia LundevallDepartment of Physics, Stockholm University, S-113 85 Stockholm, SwedenP. van der MeulenDepartment of Physics, Stockholm University, S-113 85 Stockholm, Sweden
2001en
ABI
Annotatsiya
Femtosecond transient absorption pump-probe spectroscopy has been used to study the third- and fifth-order nonlinear susceptibility of UV-grade fused silica. Theoretical simulations support the experimental evidence of interference between the third- and fifth-order contributions to the signal. Approximate values of the second-order nonlinear refractive index n(4) and of the three-photon absorption coefficient gamma are obtained.
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