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Strang A, Quirós-Cordero V, Grégoire P, Pla S, Fernández-Lázaro F, Sastre-Santos Á, Silva-Acuña C, Stavrinou PN, Stingelin N. Simple and Versatile Platforms for Manipulating Light with Matter: Strong Light-Matter Coupling in Fully Solution-Processed Optical Microcavities. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2212056. [PMID: 37192047 DOI: 10.1002/adma.202212056] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 04/22/2023] [Indexed: 05/18/2023]
Abstract
Planar microcavities with strong light-matter coupling, monolithically processed fully from solution, consisting of two polymer-based distributed Bragg reflectors (DBRs) comprising alternating layers of a high-refractive-index titanium oxide hydrate/poly(vinyl alcohol) hybrid material and a low-refractive-index fluorinated polymer are presented. The DBRs enclose a perylene diimide derivative (b-PDI-1) film positioned at the antinode of the optical mode. Strong light-matter coupling is achieved in these structures at the target excitation of the b-PDI-1. Indeed, the energy-dispersion relation (energy vs in-plane wavevector or output angle) in reflectance and the group delay of transmitted light in the microcavities show a clear anti-crossing-an energy gap between two distinct exciton-polariton dispersion branches. The agreement between classical electrodynamic simulations of the microcavity response and the experimental data demonstrates that the entire microcavity stack can be controllably produced as designed. Promisingly, the refractive index of the inorganic/organic hybrid layers used in the microcavity DBRs can be precisely manipulated between values of 1.50 to 2.10. Hence, microcavities with a wide spectral range of optical modes might be designed and produced with straightforward coating methodologies, enabling fine-tuning of the energy and lifetime of the microcavities' optical modes to harness strong light-matter coupling in a wide variety of solution processable active materials.
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Affiliation(s)
- Andrew Strang
- Department of Physics and Centre for Plastic Electronics, Imperial College London, London, SW7 2AZ, UK
| | - Victoria Quirós-Cordero
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
| | - Pascal Grégoire
- Département de Physique et Regroupement Québécois sur les Matériaux de Pointe, Université de Montréal, Case Postale 6128, succursale Centre-ville, Montréal, H3C 3J7, Canada
| | - Sara Pla
- Área de Química Orgánica, Instituto de Bioingeniería, Universidad Miguel Hernández, Elche, 03202, Spain
| | - Fernando Fernández-Lázaro
- Área de Química Orgánica, Instituto de Bioingeniería, Universidad Miguel Hernández, Elche, 03202, Spain
| | - Ángela Sastre-Santos
- Área de Química Orgánica, Instituto de Bioingeniería, Universidad Miguel Hernández, Elche, 03202, Spain
| | - Carlos Silva-Acuña
- School of Physics and School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
| | - Paul N Stavrinou
- Information Engineering Building, Department of Engineering Science, University of Oxford, 9 Parks Road, Oxford, OX1 3PD, UK
| | - Natalie Stingelin
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
- School Chemical and Biochemical Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
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Putintsev AD, McGhee KE, Sannikov D, Zasedatelev AV, Töpfer JD, Jessewitsch T, Scherf U, Lidzey DG, Lagoudakis PG. Controlling the Spatial Profile and Energy Landscape of Organic Polariton Condensates in Double-Dye Cavities. PHYSICAL REVIEW LETTERS 2023; 131:186902. [PMID: 37977614 DOI: 10.1103/physrevlett.131.186902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 07/21/2023] [Accepted: 09/20/2023] [Indexed: 11/19/2023]
Abstract
The development of high-speed, all-optical polariton logic devices underlies emerging unconventional computing technologies and relies on advancing techniques to reversibly manipulate the spatial extent and energy of polartion condensates. We investigate active spatial control of polariton condensates independent of the polariton, gain-inducing excitation profile. This is achieved by introducing an extra intracavity semiconductor layer, nonresonant to the cavity mode. Partial saturation of the optical absorption in the uncoupled layer enables the ultrafast modulation of the effective refractive index and, through excited-state absorption, the polariton dissipation. Utilizing an intricate interplay of these mechanisms, we demonstrate control over the spatial profile, density, and energy of a polariton condensate at room temperature.
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Affiliation(s)
- Anton D Putintsev
- Hybrid Photonics Laboratory, Skolkovo Institute of Science and Technology, Territory of Innovation Center Skolkovo, Bolshoy Boulevard 30, Building 1, 121205 Moscow, Russia
| | - Kirsty E McGhee
- Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, United Kingdom
| | - Denis Sannikov
- Hybrid Photonics Laboratory, Skolkovo Institute of Science and Technology, Territory of Innovation Center Skolkovo, Bolshoy Boulevard 30, Building 1, 121205 Moscow, Russia
| | - Anton V Zasedatelev
- Hybrid Photonics Laboratory, Skolkovo Institute of Science and Technology, Territory of Innovation Center Skolkovo, Bolshoy Boulevard 30, Building 1, 121205 Moscow, Russia
| | - Julian D Töpfer
- Hybrid Photonics Laboratory, Skolkovo Institute of Science and Technology, Territory of Innovation Center Skolkovo, Bolshoy Boulevard 30, Building 1, 121205 Moscow, Russia
| | - Till Jessewitsch
- Macromolecular Chemistry Group and Institute for Polymer Technology, Bergische Universität Wuppertal, Wuppertal 42119, Germany
| | - Ullrich Scherf
- Macromolecular Chemistry Group and Institute for Polymer Technology, Bergische Universität Wuppertal, Wuppertal 42119, Germany
| | - David G Lidzey
- Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, United Kingdom
| | - Pavlos G Lagoudakis
- Hybrid Photonics Laboratory, Skolkovo Institute of Science and Technology, Territory of Innovation Center Skolkovo, Bolshoy Boulevard 30, Building 1, 121205 Moscow, Russia
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Palo E, Papachatzakis MA, Abdelmagid A, Qureshi H, Kumar M, Salomäki M, Daskalakis KS. Developing Solution-Processed Distributed Bragg Reflectors for Microcavity Polariton Applications. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2023; 127:14255-14262. [PMID: 37529668 PMCID: PMC10388359 DOI: 10.1021/acs.jpcc.3c01457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 06/26/2023] [Indexed: 08/03/2023]
Abstract
Improving the performance of organic optoelectronics has been under vigorous research for decades. Recently, polaritonics has been introduced as a technology that has the potential to improve the optical, electrical, and chemical properties of materials and devices. However, polaritons have been mainly studied in optical microcavities that are made by vacuum deposition processes, which are costly, unavailable to many, and incompatible with printed optoelectronics methods. Efforts toward the fabrication of polariton microcavities with solution-processed techniques have been utterly absent. Herein, we demonstrate for the first time strong light-matter coupling and polariton photoluminescence in an organic microcavity consisting of an aluminum mirror and a distributed Bragg reflector (DBR) made by sequential dip coating of titanium hydroxide/poly(vinyl alcohol) (TiOH/PVA) and Nafion films. To fabricate and develop the solution-processed DBRs and microcavities, we automatized a dip-coating device that allowed us to produce sub-100 nm films consistently over many dip-coating cycles. Owning to the solution-based nature of our DBRs, our results pave the way to the realization of polariton optoelectronic devices beyond physical deposition methods.
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Affiliation(s)
- Emilia Palo
- Department
of Mechanical and Materials Engineering, University of Turku, FI-20014 Turku, Finland
| | - Michael A. Papachatzakis
- Department
of Mechanical and Materials Engineering, University of Turku, FI-20014 Turku, Finland
| | - Ahmed Abdelmagid
- Department
of Mechanical and Materials Engineering, University of Turku, FI-20014 Turku, Finland
| | - Hassan Qureshi
- Department
of Mechanical and Materials Engineering, University of Turku, FI-20014 Turku, Finland
| | - Manish Kumar
- Department
of Mechanical and Materials Engineering, University of Turku, FI-20014 Turku, Finland
| | - Mikko Salomäki
- Department
of Chemistry, University of Turku, FI-20014 Turku, Finland
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Coherent Plasma in a Lattice. Symmetry (Basel) 2023. [DOI: 10.3390/sym15020454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
We present a fully second-quantized calculation showing the emergence of spontaneous coherent configurations of the electromagnetic field interacting with charged bosons in a regular lattice. The bosons tend to oscillate at their plasma frequency, and in addition are subjected to electrostatic forces which keep them confined close to the lattice sites while causing a frequency shift in the oscillation. Under certain conditions upon these frequencies, we find that a suitably defined set of coherent states (coherent both in the field and matter degrees of freedom) exhibit a negative energy gap with respect to the perturbative ground state. This is true in the RWA approximation and for position-independent fields to both the first and second order in the interaction Hamiltonian. We compare this result with other recent findings from cavity QED, and note that (1) consideration of full 3D wavefunctions and a careful definition of the coherent states are essential for obtaining the energy gap, and (2) although our calculation is made in reference to bosons, it may apply to protons bound in a crystal matrix as well if their density is very low compared to the density of available states.
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Satapathy S, Liu B, Deshmukh P, Molinaro PM, Dirnberger F, Khatoniar M, Koder RL, Menon VM. Thermalization of Fluorescent Protein Exciton-Polaritons at Room Temperature. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2109107. [PMID: 35165941 PMCID: PMC9022594 DOI: 10.1002/adma.202109107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/21/2022] [Indexed: 06/14/2023]
Abstract
Fluorescent proteins (FPs) have recently emerged as a serious contender for realizing ultralow threshold room temperature exciton-polariton condensation and lasing. This contribution investigates the thermalization of FP microcavity exciton-polaritons upon optical pumping under ambient conditions. Polariton cooling is realized using a new FP molecule, called mScarlet, coupled strongly to the optical modes in a Fabry-Pérot cavity. Interestingly, at the threshold excitation energy (fluence) of ≈9 nJ per pulse (15.6 mJ cm-2 ), an effective temperature is observed, Teff ≈ 350 ± 35 K close to the lattice temperature indicative of strongly thermalized exciton-polaritons at equilibrium. This efficient thermalization results from the interplay of radiative pumping facilitated by the energetics of the lower polariton branch and the cavity Q-factor. Direct evidence for dramatic switching from an equilibrium state into a metastable state is observed for the organic cavity polariton device at room temperature via deviation from the Maxwell-Boltzmann statistics at k‖ = 0 above the threshold. Thermalized polariton gases in organic systems at equilibrium hold substantial promise for designing room temperature polaritonic circuits, switches, and lattices for analog simulation.
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Affiliation(s)
- Sitakanta Satapathy
- Department of Physics, Center for Discovery and Innovation, The City College of New York, 85 St. Nicholas Terrace, New York, NY, 10031, USA
| | - Bin Liu
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Prathmesh Deshmukh
- Department of Physics, Center for Discovery and Innovation, The City College of New York, 85 St. Nicholas Terrace, New York, NY, 10031, USA
- The PhD Program in Physics, The Graduate Center of the City University of New York, 365 5th Ave, New York, NY, 10016, USA
| | - Paul M Molinaro
- Department of Physics, Center for Discovery and Innovation, The City College of New York, 85 St. Nicholas Terrace, New York, NY, 10031, USA
| | - Florian Dirnberger
- Department of Physics, Center for Discovery and Innovation, The City College of New York, 85 St. Nicholas Terrace, New York, NY, 10031, USA
| | - Mandeep Khatoniar
- Department of Physics, Center for Discovery and Innovation, The City College of New York, 85 St. Nicholas Terrace, New York, NY, 10031, USA
- The PhD Program in Physics, The Graduate Center of the City University of New York, 365 5th Ave, New York, NY, 10016, USA
| | - Ronald L Koder
- Department of Physics, Center for Discovery and Innovation, The City College of New York, 85 St. Nicholas Terrace, New York, NY, 10031, USA
| | - Vinod M Menon
- Department of Physics, Center for Discovery and Innovation, The City College of New York, 85 St. Nicholas Terrace, New York, NY, 10031, USA
- The PhD Program in Physics, The Graduate Center of the City University of New York, 365 5th Ave, New York, NY, 10016, USA
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