Abstract
A coupled harmonic oscillator picture is developed for the nonlinear optical response of donor-acceptor substituted conjugated polyenes using the reduced single electron density matrix calculated within the time-dependent Hartree-Fock (TDHF) framework. The mechanism of the optical response is related to a few dominant oscillators which represent collective electron-hole excitations. The nature of these oscillators is analyzed. The optimization of the off-resonant nonlinear susceptibilities B(0) and y(0) and the roles of Coulomb and exchange interactions are investigated.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
