Browsing by Author "Aspuru-Guzik A."

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  • A Nanophotonic Structure Containing Living Photosynthetic Bacteria 
    Coles D.; Flatten L.; Sydney T.; Hounslow E.; Saikin S.; Aspuru-Guzik A.; Vedral V.; Tang J.; Taylor R.; Smith J.; Lidzey D. (2017)
    © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Photosynthetic organisms rely on a series of self-assembled nanostructures with tuned electronic energy levels in order to transport energy from where it is collected by ...
  • Fast delocalization leads to robust long-range excitonic transfer in a large quantum chlorosome model 
    Sawaya N.; Huh J.; Fujita T.; Saikin S.; Aspuru-Guzik A. (2015)
    © 2015 American Chemical Society. Chlorosomes are efficient light-harvesting antennas containing up to hundreds of thousands of bacteriochlorophyll molecules. With massively parallel computer hardware, we use a nonperturbative ...
  • Mapping Forbidden Emission to Structure in Self-Assembled Organic Nanoparticles 
    Hinton D.; Ng J.; Sun J.; Lee S.; Saikin S.; Logsdon J.; White D.; Marquard A.; Cavell A.; Krasecki V.; Knapper K.; Lupo K.; Wasielewski M.; Aspuru-Guzik A.; Biteen J.; Gopalan P.; Goldsmith R. (2018)
    © 2018 American Chemical Society. The interplay between micromorphology and electronic properties is an important theme in organic electronic materials. Here, we show that a spirofluorene-functionalized boron-dipyrromethene ...
  • On the chemical bonding effects in the Raman response: Benzenethiol adsorbed on silver clusters 
    Saikin S.; Olivares-Amaya R.; Rappoport D.; Stopa M.; Aspuru-Guzik A. (2009)
    We study the effects of chemical bonding on Raman scattering from benzenethiol chemisorbed on silver clusters using time-dependent density functional theory (TDDFT). Raman scattering cross sections are computed using a ...
  • On the Long-Range Exciton Transport in Molecular Systems: The Application to H-Aggregated Heterotriangulene Chains 
    Saikin S.; Shakirov M.; Kreisbeck C.; Peskin U.; Proshin Y.; Aspuru-Guzik A. (2017)
    © 2017 American Chemical Society. Self-assembled aggregates of pigment molecules are potential building blocks for excitonic circuits that find their application in energy conversion and optical signal processing. Recent ...
  • Optically induced molecular logic operations 
    Bi H.; Lobet M.; Saikin S.K.; Li Y.; Huo C.; Jian J.; Wu X.; Reichert J.; Aspuru-Guzik A.; Mazur E. (2020)
    © 2020 American Chemical Society. Molecular electronics is a promising route for down-sizing electronic devices. Tip-enhanced Raman spectroscopy provides us a setup to probe current-driven molecular junctions that are ...
  • Parametric hierarchical matrix approach for the wideband optical response of large-scale molecular aggregates 
    Ansari-Oghol-Beig D.; Rostami M.; Chernobrovkina E.; Saikin S.; Valleau S.; Mosallaei H.; Aspuru-Guzik A. (2013)
    Fast and efficient calculations of optical responses using electromagnetic models require computational acceleration and compression techniques. A hierarchical matrix approach is adopted for this purpose. In order to model ...
  • Photonics meets excitonics: Natural and artificial molecular aggregates 
    Saikin S.; Eisfeld A.; Valleau S.; Aspuru-Guzik A. (2013)
    © 2013 Science Wise Publishing. Organic molecules store the energy of absorbed light in the form of charge-neutral molecular excitations - Frenkel excitons. Usually, in amorphous organic materials, excitons are viewed as ...
  • Probing biological light-harvesting phenomena by optical cavities 
    Caruso F.; Saikin S.; Solano E.; Huelga S.; Aspuru-Guzik A.; Plenio M. (2012)
    We propose a driven optical cavity quantum electrodynamics (QED) setup aimed at directly probing energy transport dynamics in photosynthetic biomolecules. We show that detailed information concerning energy transfer paths ...
  • Quantum nonlinear optics with polar J-aggregates in microcavities 
    Herrera F.; Peropadre B.; Pachon L.; Saikin S.; Aspuru-Guzik A. (2014)
    © 2014 American Chemical Society. 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. ...
  • Strong coupling between chlorosomes of photosynthetic bacteria and a confined optical cavity mode 
    Coles D.; Yang Y.; Wang Y.; Grant R.; Taylor R.; Saikin S.; Aspuru-Guzik A.; Lidzey D.; Tang J.; Smith J. (2014)
    © 2014 Macmillan Publishers Limited. Strong exciton-photon coupling is the result of a reversible exchange of energy between an excited state and a confined optical field. This results in the formation of polariton states ...

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