P. Xu, S. H. Ji, S. N. Zhu, X. Q. Yu, J. Sun, H. T. Wang, J. L. He, Y. Y. Zhu, and N. B. Ming, "Conical second harmonic generation in a two-dimensional chi(2) photonic crystal: a hexagonally poled LiTaO3 crystal," Phys. Rev. Lett. 93, 133904 (2004).

[CrossRef]
[PubMed]

H. Y. Zhu, T. Wang, W. G. Zheng, P. Yuan, L. J. Qian, and D. Y. Fan, "Efficient second harmonic generation of femtosecond laser at 1 µm," Opt. Express 12, 2150-2155 (2004).

[CrossRef]
[PubMed]

C. Conti, S. Trillo, P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, and J. Trull, "Nonlinear electromagnetic X waves," Phys. Rev. Lett. 90, 170406 (2003).

[CrossRef]
[PubMed]

P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, J. Trull, C. Conti, and S. Trillo, "Spontaneously generated X-shaped light bullets," Phys. Rev. Lett. 91, 093904 (2003).

[CrossRef]
[PubMed]

I. N. Towers, B. A. Malomed, and F. W. Wise, "Light bullets in quadratic media with normal dispersion at the second harmonic," Phys. Rev. Lett. 90, 123902 (2003).

[CrossRef]
[PubMed]

R. Schiek, H. Fang, R. Malendevich, and G. I. Stegeman, "Measurement of modulational instability gain of second-order nonlinear optical eigenmodes in a one-dimensional system," Phys. Rev. Lett. 86, 4528-4531 (2001).

[CrossRef]
[PubMed]

T. Wang, L. J. Qian, H. Y. Zhu, Z. J. Hou, and F. M. Li, "Beam-quality improved efficient second-harmonic generation in aperiodic quasi-phase-matching gratings," Opt. Commun. 188, 213-217 (2001).

[CrossRef]

A. D. Boardman, K. Marinov, D. I. Pushkarov, and A. Shivarova, "Wave-beam coupling in quadratic nonlinear optical waveguides: effects of nonlinearly induced diffraction," Phys. Rev. E 62, 2871-2877 (2000).

[CrossRef]

D. Mihalache, D. Mazilu, L. C. Crasovan, L. Torner, B. A. Malomed, and F. Lederer, "Three-dimensional walking spatiotemporal solitons in quadratic media," Phys. Rev. E 62, 7340-7347 (2000).

[CrossRef]

X. Liu, K. Beckwitt, and F. W. Wise, "Two-dimensional optical spatiotemporal solitons in quadratic media," Phys. Rev. E 62, 1328-1340 (2000).

[CrossRef]

X. Liu, L. J. Qian, and F. W. Wise, "Generation of optical spatiotemporal solitons," Phys. Rev. Lett. 82, 4631-4634 (1999).

[CrossRef]

B. A. Malomed, P. Drummond, H. He, A. Berntson, A. Anderson, and M. Lisak, "Spatiotemporal solitons in multidimensional optical media with a quadratic nonlinearity," Phys. Rev. E 56, 4725-4735 (1997).

[CrossRef]

R. M. Rassoul, A. Ivanov, E. Freysz, A. Ducasse, and F. Hache, "Second-harmonic generation under phase-velocity and group-velocity mismatch: influence of cascading self-phase and cross-phase modulation," Opt. Lett. 22, 268-270 (1997).

[CrossRef]
[PubMed]

M. A. Arbore, A. Galvanauskas, D. Harter, M. H. Chou, and M. M. Fejer, "Engineerable compression of ultrashort pulses by use of second-harmonic generation in chirped-period-poled lithium niobate," Opt. Lett. 22, 1341-1343 (1997).

[CrossRef]

L. D. Noordam, H. J. Bakker, M. P. de Boer, and H. B. V. Vandenheuvell, "Second-harmonic generation of femtosecond pulses: observation of phase-mismatch effects," Opt. Lett. 15, 1464-1466 (1990).

[CrossRef]
[PubMed]

H. J. Bakker, P. C. M. Planken, L. Kuipers, and A. Lagendijk, "Phase modulation in second-order nonlinear optical processes," Phys. Rev. A 42, 4085-4101 (1990).

[CrossRef]
[PubMed]

B. A. Malomed, P. Drummond, H. He, A. Berntson, A. Anderson, and M. Lisak, "Spatiotemporal solitons in multidimensional optical media with a quadratic nonlinearity," Phys. Rev. E 56, 4725-4735 (1997).

[CrossRef]

L. D. Noordam, H. J. Bakker, M. P. de Boer, and H. B. V. Vandenheuvell, "Second-harmonic generation of femtosecond pulses: observation of phase-mismatch effects," Opt. Lett. 15, 1464-1466 (1990).

[CrossRef]
[PubMed]

H. J. Bakker, P. C. M. Planken, L. Kuipers, and A. Lagendijk, "Phase modulation in second-order nonlinear optical processes," Phys. Rev. A 42, 4085-4101 (1990).

[CrossRef]
[PubMed]

X. Liu, K. Beckwitt, and F. W. Wise, "Two-dimensional optical spatiotemporal solitons in quadratic media," Phys. Rev. E 62, 1328-1340 (2000).

[CrossRef]

B. A. Malomed, P. Drummond, H. He, A. Berntson, A. Anderson, and M. Lisak, "Spatiotemporal solitons in multidimensional optical media with a quadratic nonlinearity," Phys. Rev. E 56, 4725-4735 (1997).

[CrossRef]

A. D. Boardman, K. Marinov, D. I. Pushkarov, and A. Shivarova, "Wave-beam coupling in quadratic nonlinear optical waveguides: effects of nonlinearly induced diffraction," Phys. Rev. E 62, 2871-2877 (2000).

[CrossRef]

P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, J. Trull, C. Conti, and S. Trillo, "Spontaneously generated X-shaped light bullets," Phys. Rev. Lett. 91, 093904 (2003).

[CrossRef]
[PubMed]

C. Conti, S. Trillo, P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, and J. Trull, "Nonlinear electromagnetic X waves," Phys. Rev. Lett. 90, 170406 (2003).

[CrossRef]
[PubMed]

S. Trillo, C. Conti, P. Di Trapani, O. Jedrkiewicz, J. Trull, G. Valiulis, and G. Bellanca, "Colored conical emission by means of second-harmonic generation," Opt. Lett. 27, 1451-1453 (2002).

[CrossRef]

D. Mihalache, D. Mazilu, L. C. Crasovan, L. Torner, B. A. Malomed, and F. Lederer, "Three-dimensional walking spatiotemporal solitons in quadratic media," Phys. Rev. E 62, 7340-7347 (2000).

[CrossRef]

C. Conti, S. Trillo, P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, and J. Trull, "Nonlinear electromagnetic X waves," Phys. Rev. Lett. 90, 170406 (2003).

[CrossRef]
[PubMed]

P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, J. Trull, C. Conti, and S. Trillo, "Spontaneously generated X-shaped light bullets," Phys. Rev. Lett. 91, 093904 (2003).

[CrossRef]
[PubMed]

S. Trillo, C. Conti, P. Di Trapani, O. Jedrkiewicz, J. Trull, G. Valiulis, and G. Bellanca, "Colored conical emission by means of second-harmonic generation," Opt. Lett. 27, 1451-1453 (2002).

[CrossRef]

B. A. Malomed, P. Drummond, H. He, A. Berntson, A. Anderson, and M. Lisak, "Spatiotemporal solitons in multidimensional optical media with a quadratic nonlinearity," Phys. Rev. E 56, 4725-4735 (1997).

[CrossRef]

R. Schiek, H. Fang, R. Malendevich, and G. I. Stegeman, "Measurement of modulational instability gain of second-order nonlinear optical eigenmodes in a one-dimensional system," Phys. Rev. Lett. 86, 4528-4531 (2001).

[CrossRef]
[PubMed]

B. A. Malomed, P. Drummond, H. He, A. Berntson, A. Anderson, and M. Lisak, "Spatiotemporal solitons in multidimensional optical media with a quadratic nonlinearity," Phys. Rev. E 56, 4725-4735 (1997).

[CrossRef]

P. Xu, S. H. Ji, S. N. Zhu, X. Q. Yu, J. Sun, H. T. Wang, J. L. He, Y. Y. Zhu, and N. B. Ming, "Conical second harmonic generation in a two-dimensional chi(2) photonic crystal: a hexagonally poled LiTaO3 crystal," Phys. Rev. Lett. 93, 133904 (2004).

[CrossRef]
[PubMed]

T. Wang, L. J. Qian, H. Y. Zhu, Z. J. Hou, and F. M. Li, "Beam-quality improved efficient second-harmonic generation in aperiodic quasi-phase-matching gratings," Opt. Commun. 188, 213-217 (2001).

[CrossRef]

C. Conti, S. Trillo, P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, and J. Trull, "Nonlinear electromagnetic X waves," Phys. Rev. Lett. 90, 170406 (2003).

[CrossRef]
[PubMed]

P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, J. Trull, C. Conti, and S. Trillo, "Spontaneously generated X-shaped light bullets," Phys. Rev. Lett. 91, 093904 (2003).

[CrossRef]
[PubMed]

S. Trillo, C. Conti, P. Di Trapani, O. Jedrkiewicz, J. Trull, G. Valiulis, and G. Bellanca, "Colored conical emission by means of second-harmonic generation," Opt. Lett. 27, 1451-1453 (2002).

[CrossRef]

P. Xu, S. H. Ji, S. N. Zhu, X. Q. Yu, J. Sun, H. T. Wang, J. L. He, Y. Y. Zhu, and N. B. Ming, "Conical second harmonic generation in a two-dimensional chi(2) photonic crystal: a hexagonally poled LiTaO3 crystal," Phys. Rev. Lett. 93, 133904 (2004).

[CrossRef]
[PubMed]

H. J. Bakker, P. C. M. Planken, L. Kuipers, and A. Lagendijk, "Phase modulation in second-order nonlinear optical processes," Phys. Rev. A 42, 4085-4101 (1990).

[CrossRef]
[PubMed]

H. J. Bakker, P. C. M. Planken, L. Kuipers, and A. Lagendijk, "Phase modulation in second-order nonlinear optical processes," Phys. Rev. A 42, 4085-4101 (1990).

[CrossRef]
[PubMed]

D. Mihalache, D. Mazilu, L. C. Crasovan, L. Torner, B. A. Malomed, and F. Lederer, "Three-dimensional walking spatiotemporal solitons in quadratic media," Phys. Rev. E 62, 7340-7347 (2000).

[CrossRef]

T. Wang, L. J. Qian, H. Y. Zhu, Z. J. Hou, and F. M. Li, "Beam-quality improved efficient second-harmonic generation in aperiodic quasi-phase-matching gratings," Opt. Commun. 188, 213-217 (2001).

[CrossRef]

B. A. Malomed, P. Drummond, H. He, A. Berntson, A. Anderson, and M. Lisak, "Spatiotemporal solitons in multidimensional optical media with a quadratic nonlinearity," Phys. Rev. E 56, 4725-4735 (1997).

[CrossRef]

X. Liu, K. Beckwitt, and F. W. Wise, "Two-dimensional optical spatiotemporal solitons in quadratic media," Phys. Rev. E 62, 1328-1340 (2000).

[CrossRef]

X. Liu, L. J. Qian, and F. W. Wise, "Generation of optical spatiotemporal solitons," Phys. Rev. Lett. 82, 4631-4634 (1999).

[CrossRef]

R. Schiek, H. Fang, R. Malendevich, and G. I. Stegeman, "Measurement of modulational instability gain of second-order nonlinear optical eigenmodes in a one-dimensional system," Phys. Rev. Lett. 86, 4528-4531 (2001).

[CrossRef]
[PubMed]

I. N. Towers, B. A. Malomed, and F. W. Wise, "Light bullets in quadratic media with normal dispersion at the second harmonic," Phys. Rev. Lett. 90, 123902 (2003).

[CrossRef]
[PubMed]

D. Mihalache, D. Mazilu, L. C. Crasovan, L. Torner, B. A. Malomed, and F. Lederer, "Three-dimensional walking spatiotemporal solitons in quadratic media," Phys. Rev. E 62, 7340-7347 (2000).

[CrossRef]

B. A. Malomed, P. Drummond, H. He, A. Berntson, A. Anderson, and M. Lisak, "Spatiotemporal solitons in multidimensional optical media with a quadratic nonlinearity," Phys. Rev. E 56, 4725-4735 (1997).

[CrossRef]

A. D. Boardman, K. Marinov, D. I. Pushkarov, and A. Shivarova, "Wave-beam coupling in quadratic nonlinear optical waveguides: effects of nonlinearly induced diffraction," Phys. Rev. E 62, 2871-2877 (2000).

[CrossRef]

D. Mihalache, D. Mazilu, L. C. Crasovan, L. Torner, B. A. Malomed, and F. Lederer, "Three-dimensional walking spatiotemporal solitons in quadratic media," Phys. Rev. E 62, 7340-7347 (2000).

[CrossRef]

D. Mihalache, D. Mazilu, L. C. Crasovan, L. Torner, B. A. Malomed, and F. Lederer, "Three-dimensional walking spatiotemporal solitons in quadratic media," Phys. Rev. E 62, 7340-7347 (2000).

[CrossRef]

P. Xu, S. H. Ji, S. N. Zhu, X. Q. Yu, J. Sun, H. T. Wang, J. L. He, Y. Y. Zhu, and N. B. Ming, "Conical second harmonic generation in a two-dimensional chi(2) photonic crystal: a hexagonally poled LiTaO3 crystal," Phys. Rev. Lett. 93, 133904 (2004).

[CrossRef]
[PubMed]

C. Conti, S. Trillo, P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, and J. Trull, "Nonlinear electromagnetic X waves," Phys. Rev. Lett. 90, 170406 (2003).

[CrossRef]
[PubMed]

P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, J. Trull, C. Conti, and S. Trillo, "Spontaneously generated X-shaped light bullets," Phys. Rev. Lett. 91, 093904 (2003).

[CrossRef]
[PubMed]

H. J. Bakker, P. C. M. Planken, L. Kuipers, and A. Lagendijk, "Phase modulation in second-order nonlinear optical processes," Phys. Rev. A 42, 4085-4101 (1990).

[CrossRef]
[PubMed]

A. D. Boardman, K. Marinov, D. I. Pushkarov, and A. Shivarova, "Wave-beam coupling in quadratic nonlinear optical waveguides: effects of nonlinearly induced diffraction," Phys. Rev. E 62, 2871-2877 (2000).

[CrossRef]

H. Y. Zhu, T. Wang, W. G. Zheng, P. Yuan, L. J. Qian, and D. Y. Fan, "Efficient second harmonic generation of femtosecond laser at 1 µm," Opt. Express 12, 2150-2155 (2004).

[CrossRef]
[PubMed]

T. Wang, L. J. Qian, H. Y. Zhu, Z. J. Hou, and F. M. Li, "Beam-quality improved efficient second-harmonic generation in aperiodic quasi-phase-matching gratings," Opt. Commun. 188, 213-217 (2001).

[CrossRef]

X. Liu, L. J. Qian, and F. W. Wise, "Generation of optical spatiotemporal solitons," Phys. Rev. Lett. 82, 4631-4634 (1999).

[CrossRef]

R. Schiek, H. Fang, R. Malendevich, and G. I. Stegeman, "Measurement of modulational instability gain of second-order nonlinear optical eigenmodes in a one-dimensional system," Phys. Rev. Lett. 86, 4528-4531 (2001).

[CrossRef]
[PubMed]

A. D. Boardman, K. Marinov, D. I. Pushkarov, and A. Shivarova, "Wave-beam coupling in quadratic nonlinear optical waveguides: effects of nonlinearly induced diffraction," Phys. Rev. E 62, 2871-2877 (2000).

[CrossRef]

R. Schiek, H. Fang, R. Malendevich, and G. I. Stegeman, "Measurement of modulational instability gain of second-order nonlinear optical eigenmodes in a one-dimensional system," Phys. Rev. Lett. 86, 4528-4531 (2001).

[CrossRef]
[PubMed]

P. Xu, S. H. Ji, S. N. Zhu, X. Q. Yu, J. Sun, H. T. Wang, J. L. He, Y. Y. Zhu, and N. B. Ming, "Conical second harmonic generation in a two-dimensional chi(2) photonic crystal: a hexagonally poled LiTaO3 crystal," Phys. Rev. Lett. 93, 133904 (2004).

[CrossRef]
[PubMed]

D. Mihalache, D. Mazilu, L. C. Crasovan, L. Torner, B. A. Malomed, and F. Lederer, "Three-dimensional walking spatiotemporal solitons in quadratic media," Phys. Rev. E 62, 7340-7347 (2000).

[CrossRef]

I. N. Towers, B. A. Malomed, and F. W. Wise, "Light bullets in quadratic media with normal dispersion at the second harmonic," Phys. Rev. Lett. 90, 123902 (2003).

[CrossRef]
[PubMed]

P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, J. Trull, C. Conti, and S. Trillo, "Spontaneously generated X-shaped light bullets," Phys. Rev. Lett. 91, 093904 (2003).

[CrossRef]
[PubMed]

C. Conti, S. Trillo, P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, and J. Trull, "Nonlinear electromagnetic X waves," Phys. Rev. Lett. 90, 170406 (2003).

[CrossRef]
[PubMed]

S. Trillo, C. Conti, P. Di Trapani, O. Jedrkiewicz, J. Trull, G. Valiulis, and G. Bellanca, "Colored conical emission by means of second-harmonic generation," Opt. Lett. 27, 1451-1453 (2002).

[CrossRef]

S. Trillo and P. Ferro, "Modulational instability in second-harmonic generation," Opt. Lett. 20, 438-440 (1995).

[CrossRef]
[PubMed]

C. Conti, S. Trillo, P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, and J. Trull, "Nonlinear electromagnetic X waves," Phys. Rev. Lett. 90, 170406 (2003).

[CrossRef]
[PubMed]

P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, J. Trull, C. Conti, and S. Trillo, "Spontaneously generated X-shaped light bullets," Phys. Rev. Lett. 91, 093904 (2003).

[CrossRef]
[PubMed]

S. Trillo, C. Conti, P. Di Trapani, O. Jedrkiewicz, J. Trull, G. Valiulis, and G. Bellanca, "Colored conical emission by means of second-harmonic generation," Opt. Lett. 27, 1451-1453 (2002).

[CrossRef]

P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, J. Trull, C. Conti, and S. Trillo, "Spontaneously generated X-shaped light bullets," Phys. Rev. Lett. 91, 093904 (2003).

[CrossRef]
[PubMed]

C. Conti, S. Trillo, P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, and J. Trull, "Nonlinear electromagnetic X waves," Phys. Rev. Lett. 90, 170406 (2003).

[CrossRef]
[PubMed]

S. Trillo, C. Conti, P. Di Trapani, O. Jedrkiewicz, J. Trull, G. Valiulis, and G. Bellanca, "Colored conical emission by means of second-harmonic generation," Opt. Lett. 27, 1451-1453 (2002).

[CrossRef]

P. Xu, S. H. Ji, S. N. Zhu, X. Q. Yu, J. Sun, H. T. Wang, J. L. He, Y. Y. Zhu, and N. B. Ming, "Conical second harmonic generation in a two-dimensional chi(2) photonic crystal: a hexagonally poled LiTaO3 crystal," Phys. Rev. Lett. 93, 133904 (2004).

[CrossRef]
[PubMed]

H. Y. Zhu, T. Wang, W. G. Zheng, P. Yuan, L. J. Qian, and D. Y. Fan, "Efficient second harmonic generation of femtosecond laser at 1 µm," Opt. Express 12, 2150-2155 (2004).

[CrossRef]
[PubMed]

T. Wang, L. J. Qian, H. Y. Zhu, Z. J. Hou, and F. M. Li, "Beam-quality improved efficient second-harmonic generation in aperiodic quasi-phase-matching gratings," Opt. Commun. 188, 213-217 (2001).

[CrossRef]

I. N. Towers, B. A. Malomed, and F. W. Wise, "Light bullets in quadratic media with normal dispersion at the second harmonic," Phys. Rev. Lett. 90, 123902 (2003).

[CrossRef]
[PubMed]

X. Liu, K. Beckwitt, and F. W. Wise, "Two-dimensional optical spatiotemporal solitons in quadratic media," Phys. Rev. E 62, 1328-1340 (2000).

[CrossRef]

X. Liu, L. J. Qian, and F. W. Wise, "Generation of optical spatiotemporal solitons," Phys. Rev. Lett. 82, 4631-4634 (1999).

[CrossRef]

P. Xu, S. H. Ji, S. N. Zhu, X. Q. Yu, J. Sun, H. T. Wang, J. L. He, Y. Y. Zhu, and N. B. Ming, "Conical second harmonic generation in a two-dimensional chi(2) photonic crystal: a hexagonally poled LiTaO3 crystal," Phys. Rev. Lett. 93, 133904 (2004).

[CrossRef]
[PubMed]

P. Xu, S. H. Ji, S. N. Zhu, X. Q. Yu, J. Sun, H. T. Wang, J. L. He, Y. Y. Zhu, and N. B. Ming, "Conical second harmonic generation in a two-dimensional chi(2) photonic crystal: a hexagonally poled LiTaO3 crystal," Phys. Rev. Lett. 93, 133904 (2004).

[CrossRef]
[PubMed]

H. Y. Zhu, T. Wang, W. G. Zheng, P. Yuan, L. J. Qian, and D. Y. Fan, "Efficient second harmonic generation of femtosecond laser at 1 µm," Opt. Express 12, 2150-2155 (2004).

[CrossRef]
[PubMed]

T. Wang, L. J. Qian, H. Y. Zhu, Z. J. Hou, and F. M. Li, "Beam-quality improved efficient second-harmonic generation in aperiodic quasi-phase-matching gratings," Opt. Commun. 188, 213-217 (2001).

[CrossRef]

P. Xu, S. H. Ji, S. N. Zhu, X. Q. Yu, J. Sun, H. T. Wang, J. L. He, Y. Y. Zhu, and N. B. Ming, "Conical second harmonic generation in a two-dimensional chi(2) photonic crystal: a hexagonally poled LiTaO3 crystal," Phys. Rev. Lett. 93, 133904 (2004).

[CrossRef]
[PubMed]

P. Xu, S. H. Ji, S. N. Zhu, X. Q. Yu, J. Sun, H. T. Wang, J. L. He, Y. Y. Zhu, and N. B. Ming, "Conical second harmonic generation in a two-dimensional chi(2) photonic crystal: a hexagonally poled LiTaO3 crystal," Phys. Rev. Lett. 93, 133904 (2004).

[CrossRef]
[PubMed]

T. Wang, L. J. Qian, H. Y. Zhu, Z. J. Hou, and F. M. Li, "Beam-quality improved efficient second-harmonic generation in aperiodic quasi-phase-matching gratings," Opt. Commun. 188, 213-217 (2001).

[CrossRef]

L. D. Noordam, H. J. Bakker, M. P. de Boer, and H. B. V. Vandenheuvell, "Second-harmonic generation of femtosecond pulses: observation of phase-mismatch effects," Opt. Lett. 15, 1464-1466 (1990).

[CrossRef]
[PubMed]

R. DeSalvo, D. J. Hagan, M. Sheik-Bahae, G. Stegeman, E. W. Van Stryland, and H. Vanherzeele, "Self-focusing and self-defocusing by cascaded second-order effects in KTP," Opt. Lett. 17, 28-30 (1992).

[CrossRef]
[PubMed]

S. Trillo and P. Ferro, "Modulational instability in second-harmonic generation," Opt. Lett. 20, 438-440 (1995).

[CrossRef]
[PubMed]

R. M. Rassoul, A. Ivanov, E. Freysz, A. Ducasse, and F. Hache, "Second-harmonic generation under phase-velocity and group-velocity mismatch: influence of cascading self-phase and cross-phase modulation," Opt. Lett. 22, 268-270 (1997).

[CrossRef]
[PubMed]

M. A. Arbore, A. Galvanauskas, D. Harter, M. H. Chou, and M. M. Fejer, "Engineerable compression of ultrashort pulses by use of second-harmonic generation in chirped-period-poled lithium niobate," Opt. Lett. 22, 1341-1343 (1997).

[CrossRef]

S. Trillo, C. Conti, P. Di Trapani, O. Jedrkiewicz, J. Trull, G. Valiulis, and G. Bellanca, "Colored conical emission by means of second-harmonic generation," Opt. Lett. 27, 1451-1453 (2002).

[CrossRef]

H. J. Bakker, P. C. M. Planken, L. Kuipers, and A. Lagendijk, "Phase modulation in second-order nonlinear optical processes," Phys. Rev. A 42, 4085-4101 (1990).

[CrossRef]
[PubMed]

A. D. Boardman, K. Marinov, D. I. Pushkarov, and A. Shivarova, "Wave-beam coupling in quadratic nonlinear optical waveguides: effects of nonlinearly induced diffraction," Phys. Rev. E 62, 2871-2877 (2000).

[CrossRef]

D. Mihalache, D. Mazilu, L. C. Crasovan, L. Torner, B. A. Malomed, and F. Lederer, "Three-dimensional walking spatiotemporal solitons in quadratic media," Phys. Rev. E 62, 7340-7347 (2000).

[CrossRef]

X. Liu, K. Beckwitt, and F. W. Wise, "Two-dimensional optical spatiotemporal solitons in quadratic media," Phys. Rev. E 62, 1328-1340 (2000).

[CrossRef]

B. A. Malomed, P. Drummond, H. He, A. Berntson, A. Anderson, and M. Lisak, "Spatiotemporal solitons in multidimensional optical media with a quadratic nonlinearity," Phys. Rev. E 56, 4725-4735 (1997).

[CrossRef]

I. N. Towers, B. A. Malomed, and F. W. Wise, "Light bullets in quadratic media with normal dispersion at the second harmonic," Phys. Rev. Lett. 90, 123902 (2003).

[CrossRef]
[PubMed]

C. Conti, S. Trillo, P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, and J. Trull, "Nonlinear electromagnetic X waves," Phys. Rev. Lett. 90, 170406 (2003).

[CrossRef]
[PubMed]

P. Di Trapani, G. Valiulis, A. Piskarskas, O. Jedrkiewicz, J. Trull, C. Conti, and S. Trillo, "Spontaneously generated X-shaped light bullets," Phys. Rev. Lett. 91, 093904 (2003).

[CrossRef]
[PubMed]

X. Liu, L. J. Qian, and F. W. Wise, "Generation of optical spatiotemporal solitons," Phys. Rev. Lett. 82, 4631-4634 (1999).

[CrossRef]

R. Schiek, H. Fang, R. Malendevich, and G. I. Stegeman, "Measurement of modulational instability gain of second-order nonlinear optical eigenmodes in a one-dimensional system," Phys. Rev. Lett. 86, 4528-4531 (2001).

[CrossRef]
[PubMed]

P. Xu, S. H. Ji, S. N. Zhu, X. Q. Yu, J. Sun, H. T. Wang, J. L. He, Y. Y. Zhu, and N. B. Ming, "Conical second harmonic generation in a two-dimensional chi(2) photonic crystal: a hexagonally poled LiTaO3 crystal," Phys. Rev. Lett. 93, 133904 (2004).

[CrossRef]
[PubMed]