TY - JOUR
T1 - Two-dimensional optical lattice solitons
AU - Efremidis, Nikolaos K.
AU - Hudock, Jared
AU - Christodoulides, Demetrios N.
AU - Fleischer, Jason W.
AU - Cohen, Oren
AU - Segev, Mordechai
N1 - Funding Information:
This work is part of a MURI program on optical solitons and is also supported by the Israeli Science Foundation.
PY - 2003
Y1 - 2003
N2 - We study various families of two-dimensional discrete or lattice solitons, and show that they are possible only when their power level exceeds a critical threshold. In addition, we show that gap-lattice solitons exist only when the lattice possesses a complete 2D band gap. Our results suggest that these conditions are universally valid, irrespective of the nature of the nonlinearity or the specific structure of the index lattice. The analysis explains fundamental aspects of behavior of two-dimensional discrete solitons that have been very recently observed in photosensitive optical crystals.
AB - We study various families of two-dimensional discrete or lattice solitons, and show that they are possible only when their power level exceeds a critical threshold. In addition, we show that gap-lattice solitons exist only when the lattice possesses a complete 2D band gap. Our results suggest that these conditions are universally valid, irrespective of the nature of the nonlinearity or the specific structure of the index lattice. The analysis explains fundamental aspects of behavior of two-dimensional discrete solitons that have been very recently observed in photosensitive optical crystals.
UR - http://www.scopus.com/inward/record.url?scp=0345790152&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.91.213906
DO - 10.1103/PhysRevLett.91.213906
M3 - 文章
AN - SCOPUS:0345790152
SN - 0031-9007
VL - 91
JO - Physical Review Letters
JF - Physical Review Letters
IS - 21
ER -