Article (Scientific journals)
Sum-frequency generation at molecule-nanostructure interfaces from diagrammatic theory of nonlinear optics
Noblet, Thomas; Busson, Bertrand
2022In Physical Review. B, 105 (20)
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Keywords :
Diagrammatic methods; Dipolar energy; Energy exchanges; First order; General method; Molecular hyperpolarizabilities; Molecular response; Response functions; Sum frequency; Sum frequency generation; Electronic, Optical and Magnetic Materials; Condensed Matter Physics
Abstract :
[en] We apply the loop diagrammatic method for linear and nonlinear optics to the calculation of the sum-frequency response of a molecule-nanostructure composite system. The presence of the nanostructure modifies the molecular response through dipolar energy exchange, and the molecular hyperpolarizability is factorized by nanostructure response functions of increasing orders. We provide a general method to transform these functions into products of first-order nanostructure polarizabilities, accounting for enhancements of the molecular response by coupling to plasmonic or excitonic resonances. In particular, we show how the diagrams may be directly read to determine the response functions and their factorization without explicit calculation. The methodology provides a frame for various applications to other systems, interactions, and nonlinear optical processes.
Disciplines :
Physics
Author, co-author :
Noblet, Thomas  ;  Université de Liège - ULiège > Département de physique > Biophotonique
Busson, Bertrand ;  Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR 8000, Orsay, France
Language :
English
Title :
Sum-frequency generation at molecule-nanostructure interfaces from diagrammatic theory of nonlinear optics
Publication date :
15 May 2022
Journal title :
Physical Review. B
ISSN :
2469-9950
eISSN :
2469-9969
Publisher :
American Physical Society
Volume :
105
Issue :
20
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 26 September 2022

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