Femtosecond time-resolved photodissociation dynamics of methyl halide molecules on ultrathin gold films

• Mihai E. Vaida,
• Robert Tchitnga and
• Thorsten M. Bernhardt

Beilstein J. Nanotechnol. 2011, 2, 618–627, doi:10.3762/bjnano.2.65

• longer than 600 fs. The measured data were also fitted with an exponential “rise and decay” model. The determined rise and decay time constants were τ1 = 60 ± 10 fs and τ2 = 90 ± 20 fs, respectively. The maximum of the peak structure was located at 140 ± 20 fs. The error of ±20 fs, in determining the

Tip-sample interactions on graphite studied using the wavelet transform

• Giovanna Malegori and
• Gabriele Ferrini

Beilstein J. Nanotechnol. 2010, 1, 172–181, doi:10.3762/bjnano.1.21

• : . The energy associated to the oscillator E(t) is proportional to and from the above relations we see that the associated exponential energy decay time is τ = Q/ω0. The spectral energy density of the damped oscillator (L(ω)) is proportional to the square modulus of the Fourier transform of x(t), L(ω