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Nonlinear‐Optical Refraction: Predicting Graphene's Nonlinear‐Optical Refractive Response for Propagating Pulses (Laser Photonics Rev. 14(6)/2020)
Author(s) -
CastellóLurbe David,
Thienpont Hugo,
Vermeulen Nathalie
Publication year - 2020
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.202070034
Subject(s) - graphene , optics , nonlinear system , refractive index , laser , photonics , waveguide , physics , optoelectronics , nonlinear optics , refraction , materials science , quantum mechanics
Graphene is known to have a strong nonlinear‐optical refractive response, both in free‐space setups and in waveguide configurations. This image illustrates nonlinearity‐induced spectral broadening of laser pulses propagating in a graphene‐covered waveguide. The propagating field E interacting with the graphene excites free carriers N c which in turn yield a nonlinear refractive index change Δ n NL . The work described by Nathalie Vermeulen and co‐workers in article number 1900402 allows for this nonlinear response to be predicted.