@article{oai:niigata-u.repo.nii.ac.jp:00002108,
 author = {Ohkawa, M. and Fuerst, R.A. and Stegeman, G.I.},
 issue = {11},
 journal = {Journal of the Optical Society of America B, Optical physics, Journal of the Optical Society of America B, Optical physics},
 month = {Nov},
 note = {A detailed numerical comparison of the bandwidth–efficiency trade-off for second-harmonic generation (SHG) achieved by the formation of two-dimensional quadratic spatial solitons versus the more conventional method of gentle focusing in the middle of a nonlinear crystal is presented. Numerical simulations for type II SHG in potassium titanyl phosphate with constant wave-vector mismatch show that the 3-dB drop-off in SHG conversion efficiency can be many multiples of π in detuning from the phase-match condition over a large range of walk-off angles and focal positions.},
 pages = {2769--2772},
 title = {Bandwidth enhancement of second-harmonic generation with quadratic spatial-soliton generation versus conventional methods},
 volume = {15},
 year = {1998}
}