Intrinsic optical bistablility of an ultrathin film consisting of oriented linear aggregates

Малышев, В. А.; Glaeske, H.; Feller, K.‐H.

doi:10.1063/1.481895

Cited by 23 publications

(27 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…͑12͒ differs from the one found previously 31 by the small factor N s / N. This smallness, however, is compensated by the N s scaling of the integral in Eq. ͑12͒: the latter is proportional to F s / N s ӷ 1 ͑see the preceding section͒.…”

Section: A Bistability Equationcontrasting

confidence: 47%

“…The critical parameter for bistability to occur turns out to be different ͑larger͒ than that found in Ref. 31. By numerically solving the truncated Maxwell-Bloch equations in the time domain, we study the stability of the different branches of the three-valued solution for the output field intensity.…”

Section: Introductionmentioning

confidence: 99%

“…[31][32][33] The physical meaning of ⌫ R can be explored by rewriting it in the form ⌫ R = ͑3/2 ͒␥ 0 n 0 L͑ /2͒ 2 , where ␥ 0 =4d 0 2 3 / ͑3c 3 ͒ is the monomer spontaneous emission rate and n 0 L is the surface density of monomers. The quantity n 0 L͑ /2͒ 2 can be interpreted as the number of monomers in a ͑ /2͒ 2 square that oscillate in phase.…”

Section: Fig 1 ͑A͒mentioning

confidence: 99%

“…Each segment was considered as a few-level system, with an individual ground state and one or two excited states corresponding to the dominant optical states of the segment. Within this framework, both the ground state to one-exciton 31 and one-to-two 33 exciton transitions were taken into account, and bistable behavior was found in a certain region in the parameter space.…”

Section: Introductionmentioning

confidence: 99%

“…22 One particularly interesting effect, which has already received a considerable amount of theoretical discussion, but still awaits experimental realization, is the mirrorless optical bistability of a single molecular aggregate 30 or an assembly of molecular aggregates. [31][32][33] The bistable behavior of a single linear aggregate consists of a sudden switching of the aggregate's excited state population from a low level to a higher one upon a small change of the input intensity around a critical point. The effect originates from a dynamic resonance frequency shift, which depends on the number of excited monomers in the aggregate.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Intrinsic optical bistability of thin films of linear molecular aggregates: The one-exciton approximation

Klugkist

Малышев

Knoester

2007

The Journal of Chemical Physics

View full text Add to dashboard Cite

Link to publication Citation for published version (APA):Klugkist, J. A., Malyshev, V. A., & Knoester, J. (2007). Intrinsic optical bistability of thin films of linear molecular aggregates : the one-exciton approximation. Journal of Chemical Physics, 127(16), 164705-1/11. [164705]. DOI: 10.1063/1.2789416 General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. We perform a theoretical study of the nonlinear optical response of an ultrathin film consisting of oriented linear aggregates. A single aggregate is described by a Frenkel exciton Hamiltonian with uncorrelated on-site disorder. The exciton wave functions and energies are found exactly by numerically diagonalizing the Hamiltonian. The principal restriction we impose is that only the optical transitions between the ground state and optically dominant states of the one-exciton manifold are considered, whereas transitions to other states, including those of higher exciton manifolds, are neglected. The optical dynamics of the system is treated within the framework of truncated optical Maxwell-Bloch equations, in which the electric polarization is calculated by using a joint distribution of the transition frequency and the transition dipole moment of the optically dominant states. This function contains all the statistical information about these two quantities that govern the optical response and is obtained numerically by sampling many disorder realizations. We derive a steady-state equation that establishes a relationship between the output and input intensities of the electric field and show that within a certain range of the parameter space this equation exhibits a three-valued solution for the output field. A time-domain analysis is employed to investigate the stability of different branches of the three-valued solutions and to get insight into switching times. We discuss the possibility to experimentally verify the bistable behavior.

show abstract

Section: A Bistability Equationcontrasting

confidence: 47%

Section: Introductionmentioning

confidence: 99%

Section: Fig 1 ͑A͒mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Intrinsic optical bistability of thin films of linear molecular aggregates: The one-exciton approximation

Klugkist

Малышев

Knoester

2007

The Journal of Chemical Physics

View full text Add to dashboard Cite

show abstract

Electron‐Beam‐Induced Nanopatterning of J‐Aggregate Thin Films for Excitonic and Photonic Response Control

Seo

Woo

et al. 2018

Advanced Optical Materials

View full text Add to dashboard Cite

Excitons play a crucial role in the optical response of various materials. Molecular aggregates, such as J‐aggregates, exhibit strong optical responses via exciton generation and coherent transport. Planar J‐aggregate thin films can even show an optically metallic response in the visible region and may be considered as alternative materials for plasmonics. However, a direct method to control the optical properties of J‐aggregate films using a top‐down approach is not reported. Here, it is shown that the excitonic response of J‐aggregate films can be locally modified by electron beam exposure, leading to a gradual change in the dielectric constant: from optically metallic (Re[ε] < 0) to dielectric (Re[ε] > 0). Nanoscale patterned films that exhibit clear polarization‐dependent transmission and photoluminescence spectra are demonstrated. The remarkable spectral features can be attributed to the excitation of optical modes in excitonic films. This work suggests that nanopatterned excitonic films may be used as functional elements in various photonic systems to achieve the collaborative synergy between excitonic and photonic elements on a single platform.

show abstract

Light-Harvesting Crystals Formed from BODIPY-Proline Biohybrid Conjugates: Antenna Effects and Excitonic Coupling

et al. 2022

View full text Add to dashboard Cite

A boron dipyrromethene (BODIPY) derivative bearing a cis -proline residue at the meso -position crystallizes in the form of platelets with strong (i.e., Φ F = 0.34) red fluorescence, but the absorption and emission spectra differ markedly from those for dilute solutions. A key building block for the crystal is a pseudo -dimer where hydrogen bonding aligns the proline groups and separates the terminal chromophores by ca. 25 Å. Comparison with a covalently linked bichromophore suggests that one-dimensional (1D) excitonic coupling between the terminals is too small to perturb the optical properties. However, accretion of the pseudo -dimer forms narrow channels possessing a high density of chromophores. The resultant absorption spectrum exhibits strong excitonic splitting, which can be explained quantitatively using the extended dipole approach and allowing for coupling between ca. 30 BODIPY units. Fluorescence, which decays with a lifetime of 2.2 ns, is assigned to a delocalized and (slightly) super-radiant BODIPY dimer situated at the interface and populated via electronic energy transfer from the interior.

show abstract

Intrinsic optical bistablility of an ultrathin film consisting of oriented linear aggregates

Cited by 23 publications

References 36 publications

Intrinsic optical bistability of thin films of linear molecular aggregates: The one-exciton approximation

Intrinsic optical bistability of thin films of linear molecular aggregates: The one-exciton approximation

Electron‐Beam‐Induced Nanopatterning of J‐Aggregate Thin Films for Excitonic and Photonic Response Control

Light-Harvesting Crystals Formed from BODIPY-Proline Biohybrid Conjugates: Antenna Effects and Excitonic Coupling

Contact Info

Product

Resources

About