| anubiszf |
2010-01-07 20:32 |
The spatial spectrum is obtained by using a lens to <vxTfE@>bp
do Fourier transform and the far-field spectrum is recorded l70 1$>>
by a CCD camera positioned in its focal plane. 152LdZevF
First, we summarize our results of on-axis excitation of a ~b4kV)[ q
single 2D gap soliton in Fig. 1. Different from previous ^a1k"|E?f
experimental observations in which either the probe beam ]a[2QQ+g
was launched off-axis to match the edge of the first BZ [6] UoSc<h|
or its input phase or spectrum was engineered [11], we u0qTP]
demonstrate on-axis excitation of a 2D gap soliton without OAgZeK$
a priori phase or spectral engineering. In fact, we show xokA_3,1F
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