| anubiszf |
2010-01-07 20:32 |
The spatial spectrum is obtained by using a lens to r35'U#VMk?
do Fourier transform and the far-field spectrum is recorded x/7d!>#;
by a CCD camera positioned in its focal plane. <Z$r\Huf
First, we summarize our results of on-axis excitation of a 7]i=eD8
single 2D gap soliton in Fig. 1. Different from previous oic j3xkw?
experimental observations in which either the probe beam TAkM-iyH]
was launched off-axis to match the edge of the first BZ [6] #Cwzk{p(
or its input phase or spectrum was engineered [11], we RR%[]M#_T
demonstrate on-axis excitation of a 2D gap soliton without \z/_vzz4
a priori phase or spectral engineering. In fact, we show [P,/J$v^~
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