title: Enhancement and extinction effects in surface-enhanced stimulated Raman spectroscopy.
abstract: We address the optical physics of surface-enhanced stimulated Raman spectroscopy (SESRS) from the microscopic to macroscopic scales to provide experimental design criteria in colloidal-suspension SESRS. The nanoparticles that provide local field enhancement also extinguish the Raman signal. We compute the total Raman signal detected from a suspension of Raman-active molecules and nanoparticles due to the cumulative effects of enhancement and extinction and find optimum operating parameters for pump frequency and nanoparticle concentration.
authors.affiliation: Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, 405/N Mathews Ave, Urbana, IL 61801, USA. carney@illinois.edu.
authors.forename: B X K
authors.initials: BX
authors.lastname: Chng
authors.forename: T
authors.initials: T
authors.lastname: van Dijk
authors.forename: R
authors.initials: R
authors.lastname: Bhargava
authors.forename: P S
authors.initials: PS
authors.lastname: Carney
mesh_terms: D019281:Dimerization; D008962:Models, Theoretical; D053758:Nanoparticles / Q000737:chemistry; D013059:Spectrum Analysis, Raman; D013535:Suspensions / Q000737:chemistry
chemical_list: D013535:Suspensions