TY - JOUR
T1 - Tailoring and enhancing spontaneous two-photon emission using resonant plasmonic nanostructures
AU - Poddubny, Alexander N.
AU - Ginzburg, Pavel
AU - Belov, Pavel A.
AU - Zayats, Anatoly V.
AU - Kivshar, Yuri S.
PY - 2012/9/20
Y1 - 2012/9/20
N2 - The rate of spontaneous emission is known to depend on the environment of a emitter, and the enhancement of one-photon emission in a resonant cavity is known as the Purcell effect. Here we develop a theory of spontaneous two-photon emission for a general electromagnetic environment including inhomogeneous dispersive and absorptive media. This theory is used to evaluate the two-photon Purcell enhancement in the vicinity of metallic nanoparticles and demonstrates that the surface-plasmon resonances supported by these particles can increase the emission rate by more than two orders of magnitude. The control over two-photon Purcell enhancement given by tailored nanostructured environments could provide an emitter with any desired spectral response and may serve as an ultimate route for designing light sources with novel properties.
AB - The rate of spontaneous emission is known to depend on the environment of a emitter, and the enhancement of one-photon emission in a resonant cavity is known as the Purcell effect. Here we develop a theory of spontaneous two-photon emission for a general electromagnetic environment including inhomogeneous dispersive and absorptive media. This theory is used to evaluate the two-photon Purcell enhancement in the vicinity of metallic nanoparticles and demonstrates that the surface-plasmon resonances supported by these particles can increase the emission rate by more than two orders of magnitude. The control over two-photon Purcell enhancement given by tailored nanostructured environments could provide an emitter with any desired spectral response and may serve as an ultimate route for designing light sources with novel properties.
UR - http://www.scopus.com/inward/record.url?scp=84866692056&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.86.033826
DO - 10.1103/PhysRevA.86.033826
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AN - SCOPUS:84866692056
SN - 1050-2947
VL - 86
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 3
M1 - 033826
ER -