Quantum Nonlinear Optics with Polar J-Aggregates in Microcavities

We predict that an ensemble of organic dye molecules with permanent electric dipole moments embedded in a microcavity can lead to strong optical nonlinearities at the single-photon level The strong long-range electrostatic interaction between chromophores due to their introduces the desired nonlinearity of the light matter coupling the microcavity. We develop a semiclassical model to obtain the absorption spectra of a weak probe field under the influence of strong exciton-photon coupling with the cavity field. Using realistic parameters, we demonstrate that a cavity field with an average photon number near unity can significantly modify the absorptive and dispersive response of the medium to a weak probe field at a different frequency. Finally, we show that the system is in the regime of cavity-induced transparency with a broad transparency window for dye dimers. We illustrate our findings using pseudoisocyanine chloride (PIC) J aggregates in currently available optical microcavities.

• Fecha de publicación: 2015
• Institución: Ministerio de Ciencia, Tecnología e Innovación
• Repositorio: Repositorio Minciencias
• Idioma: eng
• OAI Identifier: oai:repositorio.minciencias.gov.co:20.500.14143/34060
• Acceso en línea: http://repositorio.colciencias.gov.co/handle/11146/34060
• Palabra clave: Teoría cuántica; Dinámica de sistemas; Métodos de simulación; Campos electromagnéticos; Teoría molecular; Teoría atómica; Energía mecánica; Propagación de ondas
• License: http://purl.org/coar/access_right/c_f1cf