H. Benisty, M. Besbes, "Confinement and optical properties
of the plasmonic inverse-rib waveguide," J.
Opt. Soc. Amer. B 29, 818-826 (2012).

Y. D. Chong, L. Ge, A. D. Stone, "PT-symmetry breaking and laser-absorber
modes in optical scattering systems," Phys.
Rev. Lett. 106, 093902 (2011).

H. Benisty, A. Degiron, A. Lupu, A. De Lustrac, S. Chenais, S. Forget, M. Besbes, G. Barbillon, A. Bruyant, S. Blaize, G. Lerondel, "Implementation of PT symmetric devices using
plasmonics: Principle and applications," Opt.
Express 19, 18004-18019 (2011).

I. De Leon, P. Berini, "Amplification of long-range
surface plasmons by a dipolar gain medium," Nat.
Photon. 4, 382-387 (2010).

M. C. Gather, K. Meerholz, N. Danz, K. Leosson, "Net optical gain in a plasmonic waveguide
embedded in a fluorescent polymer," Nat. Photon. 4, 457-461 (2010).

T. Kottos, "Broken symmetry makes light
work," Nat. Phys. 6, 166-167 (2010).

C. E. Rüter, K. G. Makris, R. El-Gaininy, D. N. Christodoulides, M. Segev, D. Kip, "Observation of parity-time symmetry in optics," Nat. Phys. 6, 192-195 (2010).

H. Benisty, M. Besbes, "Plasmonic inverse rib waveguiding
for tight confinement and smooth interface definition," J.
Appl. Phys. 108, 0631081-0631088 (2010).

S. Longhi, "PT-symmetric laser absorber," Phys. Rev. A 82, (2010).

J. Ctyroky, V. Kuzmiak, S. Eyderman, "Waveguide structures with antisymmetric
gain/loss profile," Opt. Express 18, 21585-21593 (2010).

A. Degiron, S. Y. Cho, T. Tyler, N. M. Jokerst, D. R. Smith, "Directional coupling between dielectric
and long-range plasmon waveguides," New J. Phys. 11, 01500201-01500210 (2009).

R. F. Oulton, V. J. Sorger, T. Zentgraf, R.-M. MA, C. Gladden, L. Dai, G. Bartal, X. Zhang, "Plasmon lasers at deep subwavelength scale," Nature 461, 629-632 (2009).

A. Guo, G. J. Salamo, R. Duchesne, R. Morandotti, M. Volatier-Ravat, V. Aimez, G. A. Siviloglou, D. N. Christodoulides, "Observation of PT-symmetry breaking in complex
optical potentials," Phys. Rev. Lett. 103, 093902 (2009).

S. Klainman, U. Günther, N. Moiseyev, "Visualization of branch points
in PT-symmetric waveguides," Phys. Rev. Lett. 101, 080402 (2008).

M. A. Noginov, V. A. Podolskiy, G. Zhul, M. Mayyl, M. Bahoural, J. A. Adegokel, B. A. Ritzo, K. Reynolds, "Compensation of loss in propagating surface plasmon polariton
by gain in adjacent dielectric medium," Opt.
Express 16, 1385-1392 (2008).

R. F. Oulton, G. Bartal, D. F. P. Pile, X. Zhang, "Confinement and propagation characteristics
of subwavelength plasmonic modes," New J. Phys. 10, 105018 (2008).

R. F. Oulton, V. J. Sorger, D. A. Genov, D. F. P. Pile, X. Zhang, "A hybrid plasmonic waveguide for subwavelength
confinement and long-range propagation," Nat.
Photon. 2, 496-500 (2008).

M. Kulishov, J. M. Laniel, N. Bélanger, J. Azaña, D. V. Plant, "Nonreciprocal waveguide Bragg
gratings," Opt. Express 13, 3068-3078 (2005).

M. Kulishov, J. M. Laniel, N. Bélanger, D. V. Plant, "Trapping light in a ring resonator
using a grating-assisted coupler with asymmetric transmission," Opt. Express 13, 3567-3578 (2005).

J. Ctyroky, S. Helfert, R. Pregla, P. Bienstman, R. Baets, R. De Ridder, R. Stoffer, G. Klaasse, J. Petracek, P. Lalanne, J. P. Hugonin, R. M. De La Rue, "Bragg waveguide grating as a 1D photonic
band gap structure: COST 268 modelling task," Opt.
Quant. Electron. 34, 455-470 (2002).

G. W. Ford, W. H. Weber, "Electromagnetic interaction
of molecules with metal surfaces," Phys. Rep. 113, 195-287 (1984).

H. Benisty, M. Besbes, "Plasmonic inverse rib waveguiding
for tight confinement and smooth interface definition," J.
Appl. Phys. 108, 0631081-0631088 (2010).

H. Benisty, M. Besbes, "Confinement and optical properties
of the plasmonic inverse-rib waveguide," J.
Opt. Soc. Amer. B 29, 818-826 (2012).

I. De Leon, P. Berini, "Amplification of long-range
surface plasmons by a dipolar gain medium," Nat.
Photon. 4, 382-387 (2010).

R. F. Oulton, V. J. Sorger, D. A. Genov, D. F. P. Pile, X. Zhang, "A hybrid plasmonic waveguide for subwavelength
confinement and long-range propagation," Nat.
Photon. 2, 496-500 (2008).

M. C. Gather, K. Meerholz, N. Danz, K. Leosson, "Net optical gain in a plasmonic waveguide
embedded in a fluorescent polymer," Nat. Photon. 4, 457-461 (2010).

T. Kottos, "Broken symmetry makes light
work," Nat. Phys. 6, 166-167 (2010).

C. E. Rüter, K. G. Makris, R. El-Gaininy, D. N. Christodoulides, M. Segev, D. Kip, "Observation of parity-time symmetry in optics," Nat. Phys. 6, 192-195 (2010).

R. F. Oulton, V. J. Sorger, T. Zentgraf, R.-M. MA, C. Gladden, L. Dai, G. Bartal, X. Zhang, "Plasmon lasers at deep subwavelength scale," Nature 461, 629-632 (2009).

R. F. Oulton, G. Bartal, D. F. P. Pile, X. Zhang, "Confinement and propagation characteristics
of subwavelength plasmonic modes," New J. Phys. 10, 105018 (2008).

A. Degiron, S. Y. Cho, T. Tyler, N. M. Jokerst, D. R. Smith, "Directional coupling between dielectric
and long-range plasmon waveguides," New J. Phys. 11, 01500201-01500210 (2009).

M. A. Noginov, V. A. Podolskiy, G. Zhul, M. Mayyl, M. Bahoural, J. A. Adegokel, B. A. Ritzo, K. Reynolds, "Compensation of loss in propagating surface plasmon polariton
by gain in adjacent dielectric medium," Opt.
Express 16, 1385-1392 (2008).

H. Benisty, A. Degiron, A. Lupu, A. De Lustrac, S. Chenais, S. Forget, M. Besbes, G. Barbillon, A. Bruyant, S. Blaize, G. Lerondel, "Implementation of PT symmetric devices using
plasmonics: Principle and applications," Opt.
Express 19, 18004-18019 (2011).

J. Ctyroky, S. Helfert, R. Pregla, P. Bienstman, R. Baets, R. De Ridder, R. Stoffer, G. Klaasse, J. Petracek, P. Lalanne, J. P. Hugonin, R. M. De La Rue, "Bragg waveguide grating as a 1D photonic
band gap structure: COST 268 modelling task," Opt.
Quant. Electron. 34, 455-470 (2002).

M. Kulishov, J. M. Laniel, N. Bélanger, J. Azaña, D. V. Plant, "Nonreciprocal waveguide Bragg
gratings," Opt. Express 13, 3068-3078 (2005).

M. Kulishov, J. M. Laniel, N. Bélanger, D. V. Plant, "Trapping light in a ring resonator
using a grating-assisted coupler with asymmetric transmission," Opt. Express 13, 3567-3578 (2005).

J. Ctyroky, V. Kuzmiak, S. Eyderman, "Waveguide structures with antisymmetric
gain/loss profile," Opt. Express 18, 21585-21593 (2010).

Y. D. Chong, L. Ge, A. D. Stone, "PT-symmetry breaking and laser-absorber
modes in optical scattering systems," Phys.
Rev. Lett. 106, 093902 (2011).

G. W. Ford, W. H. Weber, "Electromagnetic interaction
of molecules with metal surfaces," Phys. Rep. 113, 195-287 (1984).

S. Longhi, "PT-symmetric laser absorber," Phys. Rev. A 82, (2010).

A. Guo, G. J. Salamo, R. Duchesne, R. Morandotti, M. Volatier-Ravat, V. Aimez, G. A. Siviloglou, D. N. Christodoulides, "Observation of PT-symmetry breaking in complex
optical potentials," Phys. Rev. Lett. 103, 093902 (2009).

S. Klainman, U. Günther, N. Moiseyev, "Visualization of branch points
in PT-symmetric waveguides," Phys. Rev. Lett. 101, 080402 (2008).

H. P. Nolting, G. Sztefka, M. Grawert, J. Ctyroky, "Wave propagation in a waveguide
with a balance of gain and loss," Proc. Integr.
Photon. Conf. (1996) pp. IMD5-1.

D. Felbacq, "Finding resonance poles by
means of Cauchy integrals," Proc. 13th Int.
Conf. Transp. Opt. Netw. (2011) pp. 4.