Optical vortex solitons observed in Kerr nonlinear media
1992 ◽
Vol 69
(17)
◽
pp. 2503-2506
◽
1994 ◽
Vol 4
(8-9)
◽
pp. 1759-1766
◽
1994 ◽
Vol 11
(10)
◽
pp. 2000
◽