J. N. Anker, W. P. Hall, O. Lyandres, N. C. Shah, J. Zhao et al., Biosensing with plasmonic nanosensors, Nature Materials, vol.636, issue.6, p.442, 2008.
DOI : 10.1038/nmat2162

N. Liu, M. L. Tang, M. Hentschel, H. Giessen, and A. P. , Nanoantenna-enhanced gas sensing in a single tailored nanofocus, Nature Materials, vol.14, issue.8, p.631, 2011.
DOI : 10.1038/nmat3029

]. A. Sentenac and P. C. Chaumet, Subdiffraction Light Focusing on a Grating Substrate, Physical Review Letters, vol.101, issue.1, p.13901, 2008.
DOI : 10.1103/PhysRevLett.101.013901
URL : https://hal.archives-ouvertes.fr/hal-00457328

M. Khajavikhan, A. Simic, M. Katz, J. H. Lee, B. Slutsky et al., Thresholdless nanoscale coaxial lasers, Nature, vol.45, issue.7384, p.204, 2012.
DOI : 10.1038/nature10840
URL : http://arxiv.org/abs/1108.4749

A. J. Shields, Semiconductor quantum light sources, Nature Photonics, vol.69, issue.4, p.215, 2007.
DOI : 10.1038/nphoton.2007.46

H. A. Atwater and A. Polman, Plasmonics for improved photovoltaic devices, Nature Materials, vol.14, issue.3, p.205, 2010.
DOI : 10.1038/nmat2629
URL : http://authors.library.caltech.edu/17636/1/Atwater2010p7079Nat_Mater.pdf

R. H. Dicke, Coherence in Spontaneous Radiation Processes, Physical Review, vol.93, issue.1, p.99, 1954.
DOI : 10.1103/PhysRev.93.99

V. N. Pustovit and T. V. Shahbazyan, Cooperative emission of light by an ensemble of dipoles near a metal nanoparticle: The plasmonic Dicke effect, Physical Review Letters, vol.102, issue.7, p.77401, 2009.
DOI : 10.1103/PhysRevLett.102.077401

J. De-rosny and M. Fink, Overcoming the Diffraction Limit in Wave Physics Using a Time-Reversal Mirror and a Novel Acoustic Sink, Physical Review Letters, vol.89, issue.12, p.124301, 2002.
DOI : 10.1103/PhysRevLett.89.124301

S. A. Ponomarenko and E. Wolf, Universal structure of field correlations within a fluctuating medium, Physical Review E, vol.65, issue.1, p.16602, 2001.
DOI : 10.1103/PhysRevE.65.016602

R. L. Weaver and O. I. Lobkis, Ultrasonics without a Source: Thermal Fluctuation Correlations at MHz Frequencies, Physical Review Letters, vol.87, issue.13, p.134301, 2001.
DOI : 10.1103/PhysRevLett.87.134301

T. Setälä, K. Blomstedt, M. Kaivola, and A. T. Friberg, Universality of electromagnetic-field correlations within homogeneous and isotropic sources, Physical Review E, vol.67, issue.2, p.26613, 2003.
DOI : 10.1103/PhysRevE.67.026613

K. Joulain, J. Mulet, F. Marquier, R. Carminati, and J. Greffet, Surface electromagnetic waves thermally excited: Radiative heat transfer, coherence properties and Casimir forces revisited in the near field, Surface Science Reports, vol.57, issue.3-4, p.59, 2005.
DOI : 10.1016/j.surfrep.2004.12.002
URL : https://hal.archives-ouvertes.fr/hal-00004659

R. Carminati, R. Pierrat, J. De-rosny, and M. Fink, Theory of the time reversal cavity for electromagnetic fields, Optics Letters, vol.32, issue.21, p.3107, 2007.
DOI : 10.1364/OL.32.003107

A. Cazé, R. Pierrat, and R. Carminati, Spatial Coherence in Complex Photonic and Plasmonic Systems, Physical Review Letters, vol.110, issue.6, p.63903, 2013.
DOI : 10.1103/PhysRevLett.110.063903

M. M. Dignam, D. P. Fussell, M. J. Steel, C. M. De-sterke, and R. C. Mcphedran, Spontaneous Emission Suppression via Quantum Path Interference in Coupled Microcavities, Physical Review Letters, vol.96, issue.10, p.103902, 2006.
DOI : 10.1103/PhysRevLett.96.103902

D. P. Fussell, M. M. Dignam, M. J. Steel, C. M. De-sterke, and R. C. Mcphedran, Spontaneous emission and photon dynamics in dielectric microcavities, Physical Review A, vol.74, issue.4, p.43806, 2006.
DOI : 10.1103/PhysRevA.74.043806

A. J. Siegert, On the Derivation of the Dispersion Formula for Nuclear Reactions, Physical Review, vol.56, issue.8, p.750, 1939.
DOI : 10.1103/PhysRev.56.750

R. M. More, Theory of Decaying States, Physical Review A, vol.4, issue.5, p.1782, 1971.
DOI : 10.1103/PhysRevA.4.1782

R. M. More and E. Gerjuoy, Properties of Resonance Wave Functions, Physical Review A, vol.7, issue.4, p.1288, 1973.
DOI : 10.1103/PhysRevA.7.1288

B. J. Hoenders, On the completeness of the natural modes for quantum mechanical potential scattering, Journal of Mathematical Physics, vol.20, issue.2, p.329, 1979.
DOI : 10.1063/1.524065

P. T. Leung, S. Y. Liu, and K. Young, Time-independent perturbation theory for quasinormal modes in leaky optical cavities, Physical Review A, vol.49, issue.4, p.3068, 1994.
DOI : 10.1103/PhysRevA.49.3068

K. M. Lee, P. T. Leung, and K. M. Pang, Dyadic formulation of morphology-dependent resonances I Completeness relation, Journal of the Optical Society of America B, vol.16, issue.9, p.1409, 1999.
DOI : 10.1364/JOSAB.16.001409

P. T. Leung, K. M. Pang, and K. Young, Two-component wave formalism in spherical open systems, Journal of Physics A: Mathematical and General, vol.39, issue.1, p.247, 2006.
DOI : 10.1088/0305-4470/39/1/018

A. Settimi, S. Severini, N. Mattiucci, C. Sibilia, M. Centini et al., Quasinormal-mode description of waves in one-dimensional photonic crystals, Physical Review E, vol.68, issue.2, p.26614, 2003.
DOI : 10.1103/PhysRevE.68.026614

M. B. Doost, W. Langbein, and E. A. Muljarov, Resonant-state expansion applied to planar open optical systems, Physical Review A, vol.85, issue.2, p.23835, 2012.
DOI : 10.1103/PhysRevA.85.023835

P. T. Kristensen, C. Van-vlack, and S. Hughes, Generalized effective mode volume for leaky optical cavities, Optics Letters, vol.37, issue.10, p.1649, 2012.
DOI : 10.1364/OL.37.001649

]. S. Derom, R. Vincent, A. Bouhelier, and G. , Resonance quality, radiative/ohmic losses and modal volume of Mie plasmons, EPL (Europhysics Letters), vol.98, issue.4, p.47008, 2012.
DOI : 10.1209/0295-5075/98/47008
URL : https://hal.archives-ouvertes.fr/hal-00703527

S. Hein, T. Hohage, and W. Koch, On resonances in open systems, Journal of Fluid Mechanics, vol.506, p.255, 2004.
DOI : 10.1017/S0022112004008584

M. I. Stockman, S. V. Faleev, and D. J. Bergman, Localization versus Delocalization of Surface Plasmons in Nanosystems: Can One State Have Both Characteristics?, Physical Review Letters, vol.87, issue.16, p.167401, 2001.
DOI : 10.1103/PhysRevLett.87.167401

G. Boudarham and M. Kociak, Modal decompositions of the local electromagnetic density of states and spatially resolved electron energy loss probability in terms of geometric modes, Physical Review B, vol.85, issue.24, p.245447, 2012.
DOI : 10.1103/PhysRevB.85.245447

H. E. Türeci, A. D. Stone, and B. Collier, Self-consistent multimode lasing theory for complex or random lasing media, Physical Review A, vol.74, issue.4, p.43822, 2006.
DOI : 10.1103/PhysRevA.74.043822

P. T. Leung, S. Y. Liu, and K. Young, Completeness and time-independent perturbation of the quasinormal modes of an absorptive and leaky cavity, Physical Review A, vol.49, issue.5, p.3982, 1994.
DOI : 10.1103/PhysRevA.49.3982

Q. I. Dai, W. C. Chew, Y. H. Lo, Y. G. Liu, and L. J. Jiang, Generalized Modal Expansion of Electromagnetic Field in 2-D Bounded and Unbounded Media, IEEE Antennas and Wireless Propagation Letters, vol.11, p.1052, 2012.
DOI : 10.1109/LAWP.2012.2215571

B. Vial, F. Zolla, A. Nicolet, and M. Commandré, Quasimodal expansion of electromagnetic fields in open two-dimensional structures, Physical Review A, vol.89, issue.2, p.23829, 2014.
DOI : 10.1103/PhysRevA.89.023829
URL : https://hal.archives-ouvertes.fr/hal-01281129

C. Sauvan, J. Hugonin, I. S. Maksymov, and P. Lalanne, Theory of the Spontaneous Optical Emission of Nanosize Photonic and Plasmon Resonators, Physical Review Letters, vol.110, issue.23, p.237401, 2013.
DOI : 10.1103/PhysRevLett.110.237401
URL : https://hal.archives-ouvertes.fr/hal-00850459

Q. Bai, M. Perrin, C. Sauvan, J. Hugonin, and P. Lalanne, Efficient and intuitive method for the analysis of light scattering by a resonant nanostructure, Optics Express, vol.21, issue.22, p.27371, 2013.
DOI : 10.1364/OE.21.027371
URL : https://hal.archives-ouvertes.fr/hal-00917914

N. V. Budko and A. B. Samokhin, Classification of Electromagnetic Resonances in Finite Inhomogeneous Three-Dimensional Structures, Physical Review Letters, vol.96, issue.2, p.23904, 2006.
DOI : 10.1103/PhysRevLett.96.023904

M. Agio and D. Martin-cano, Nano-optics: The Purcell factor of nanoresonators, Nature Photonics, vol.9, issue.9, p.674, 2013.
DOI : 10.1038/nphoton.2013.219

P. Lalanne, C. Sauvan, and J. Hugonin, Photon confinement in photonic crystal nanocavities, Laser & Photonics Review, vol.3, issue.6, p.514, 2008.
DOI : 10.1002/lpor.200810018
URL : https://hal.archives-ouvertes.fr/hal-00566678

E. Silberstein, P. Lalanne, J. Hugonin, and Q. Cao, Use of grating theories in integrated optics, Journal of the Optical Society of America A, vol.18, issue.11, p.2865, 2001.
DOI : 10.1364/JOSAA.18.002865
URL : https://hal.archives-ouvertes.fr/hal-00867923

N. Bonod, E. Popov, and M. Nevì-ere, Differential theory of diffraction by finite cylindrical objects, Journal of the Optical Society of America A, vol.22, issue.3, p.481, 2005.
DOI : 10.1364/JOSAA.22.000481
URL : https://hal.archives-ouvertes.fr/hal-00015522

L. Li, New formulation of the Fourier modal method for crossed surface-relief gratings, Journal of the Optical Society of America A, vol.14, issue.10, p.2758, 1997.
DOI : 10.1364/JOSAA.14.002758

G. Lecamp, J. P. Hugonin, and P. Lalanne, Theoretical and computational concepts for periodic optical waveguides, Optics Express, vol.15, issue.18, p.11042, 2007.
DOI : 10.1364/OE.15.011042
URL : https://hal.archives-ouvertes.fr/hal-00869734

P. Mühlschlegel, H. Eisler, O. J. Martin, B. Hecht, and D. W. , Resonant Optical Antennas, Science, vol.308, issue.5728, p.1607, 2005.
DOI : 10.1126/science.1111886

L. Novotny and N. F. Van-hulst, Antennas for light, Nature Photonics, vol.4, issue.2, p.83, 2011.
DOI : 10.1038/nphoton.2010.237

L. Novotny, Effective Wavelength Scaling for Optical Antennas, Physical Review Letters, vol.98, issue.26, p.266802, 2007.
DOI : 10.1103/PhysRevLett.98.266802

E. D. Palik, Handbook of Optical Constants of Solids, 1985.