Directory of Experts

Kéna-Cohen, Stéphane

Directory of Experts

Kéna-Cohen, Stéphane

Directory of Experts

Publications by type

Journal article (59) Conference paper (19) Book Book chapter (4) Patent Report (1) Thesis (1) Dataset Teaching resource Image Audio recording Video recording Other

Stéphane Kéna-Cohen (84)

Journal articles (59)
- 2023
  - Lapointe, V., Imperiale, C. J., Chengadu, S., Pomilio, C. M., Ganesh, M., Kéna-Cohen, S., & Majewski, M. B. (2023). Photonic enhancement in photoluminescent metal halide perovskite–photonic crystal bead hybrids. Chemical Communications, 4 pages.
- 2022
  - Tao, R., Peng, K., Haeberlé, L., Li, Q., Jin, D., Fleming, G. R., Kéna-Cohen, S., Zhang, X., & Bao, W. (2022). Halide perovskites enable polaritonic XY spin Hamiltonian at room temperature. Nature Materials, 21(7), 761-766.
  - Datta, B., Khatoniar, M., Deshmukh, P., Thouin, F., Bushati, R., De Liberato, S., Kéna-Cohen, S., & Menon, V. M. (2022). Highly nonlinear dipolar exciton-polaritons in bilayer MoS2. Nature Communications, 13(1), 6341 (7 pages).
  - Patri, A., Cognee, K. G., Myers, D. M., Haeberle, L., Menon, V., & Kéna-Cohen, S. (2022). Hybrid epsilon-near-zero modes of photonic gap antennas. Physical Review B, 105(16), 165126 (7 pages).
  - Ishii, T., Miyata, K., Mamada, M., Bencheikh, F., Mathevet, F., Onda, K., Kéna-Cohen, S., & Adachi, C. (2022). Low-Threshold Exciton-Polariton Condensation via Fast Polariton Relaxation in Organic Microcavities. Advanced Optical Materials, 10(3), 2102034 (8 pages).
  - Allen, R. T., Dhavamani, A., Son, M., Kéna-Cohen, S., Zanni, M. T., & Arnold, M. S. (2022). Population of Subradiant States in Carbon Nanotube Microcavities in the Ultrastrong Light–Matter Coupling Regime. The Journal of Physical Chemistry C, 126(19), 8417-8424.
  - Peng, K., Tao, R., Haeberlé, L., Li, Q., Jin, D., Fleming, G. R., Kéna-Cohen, S., Zhang, X., & Bao, W. (2022). Room-temperature polariton quantum fluids in halide perovskites. Nature Communications, 13, 9 pages.
- 2021
  - Dhavamani, A., Haeberle, L., Wang, J., Kéna-Cohen, S., & Arnold, M. S. (2021). Cavity-Mediated Hybridization of Bright and Dark Excitons in an Ultrastrongly Coupled Carbon Nanotube Microcavity. ACS Photonics, 8(8), 2375-2383.
  - Shahalizad, A., Malinge, A., Hu, L., Laflamme, G., Haeberle, L., Myers, D. M., Mao, J., Skene, W. G., & Kéna-Cohen, S. (2021). Efficient Solution-Processed Hyperfluorescent OLEDs with Spectrally Narrow Emission at 840 nm. Advanced Functional Materials, 31(1), 2007119 (8 pages).
  - Ishii, T., Bencheikh, F., Forget, S., Chenais, S., Heinrich, B., Kreher, D., Vargas, L. S., Miyata, K., Onda, K., Fujihara, T., Kéna-Cohen, S., Mathevet, F., & Adachi, C. (2021). Enhanced Light-Matter Interaction and Polariton Relaxation by the Control of Molecular Orientation. Advanced Optical Materials, 9(22), 2101048 (9 pages).
  - Gu, J., Walther, V., Waldecker, L., Rhodes, D., Raja, A., Hone, J. C., Heinz, T. F., Kéna-Cohen, S., Pohl, T., & Menon, V. M. (2021). Enhanced nonlinear interaction of polaritons via excitonic Rydberg states in monolayer WSe2. Nature Communications, 12(1), 7 pages.
  - Patri, A., Cognee, K. G., Haeberle, L., Menon, V., Caloz, C., & Kéna-Cohen, S. (2021). Photonic Gap Antennas Based on High-Index-Contrast Slot Waveguides. Physical Review Applied, 16(4), 044065 (11 pages).
  - Sridharan, A., Noel, N. K., Rand, B. P., & Kéna-Cohen, S. (2021). Role of Photon Recycling and Band Filling in Halide Perovskite Photoluminescence under Focussed Excitation Conditions. The Journal of Physical Chemistry C, 125(4), 2240-2249.
- 2020
  - Walters, G., Haeberle, L., Quintero-Bermudez, R., Brodeur, J., Kéna-Cohen, S., & Sargent, E. H. (2020). Directional Light Emission from Layered Metal Halide Perovskite Crystals. Journal of Physical Chemistry Letters, 11(9), 3458-3465.
  - Mao, J., Ortiz, O., Wang, J., Malinge, A., Badia, A., & Kéna-Cohen, S. (2020). Langmuir-Blodgett fabrication of large-area black phosphorus-C60thin films and heterojunction photodetectors. Nanoscale, 12(38), 19814-19823.
  - Wang, J., Rousseau, A., Yang, M., Low, T., Francoeur, S., & Kéna-Cohen, S. (2020). Mid-infrared Polarized Emission from Black Phosphorus Light-Emitting Diodes. Nano Letters, 20(5), 3651-3655.
- 2019
  - Hafezian, S., Beaini, R., Martinu, L., & Kéna-Cohen, S. (2019). Degradation mechanism of protected ultrathin silver films and the effect of the seed layer. Applied Surface Science, 484, 335-340.
  - Brodeur, J., Hu, L., Malinge, A., Eizner, E., Skene, W. G., & Kéna-Cohen, S. (2019). Highly Efficient and Spectrally Narrow Near-Infrared Fluorescent OLEDs Using a TADF-Sensitized Cyanine Dye. Advanced Optical Materials, 7(22), 7 pages.
  - Eizner, E., Martinez-Martinez, L. A., Yuen-Zhou, J., & Kéna-Cohen, S. (2019). Inverting singlet and triplet excited states using strong light-matter coupling. Science Advances, 5(12), eaax4482 (8 pages).
  - Patri, A., Kéna-Cohen, S., & Caloz, C. (2019). Large-Angle, Broadband and Multifunctional Directive Waveguide Scatterer Gratings. ACS Photonics, 6(12), 3298-3305.
  - Kéna-Cohen, S., & Yuen-Zhou, J. (2019). Polariton Chemistry: Action in the Dark. ACS Central Science, 5(3), 386-388.
  - Wang, J., Rousseau, A., Eizner, E., Phaneuf-L'Heureux, A.-L., Schue, L., Francoeur, S., & Kéna-Cohen, S. (2019). Spectral Responsivity and Photoconductive Gain in Thin Film Black Phosphorus Photodetectors. ACS Photonics, 6(12), 3092-3099.
  - Sridharan, A., Noe, N. K., Hwang, H., Hafezian, S., Rand, B. P., & Kéna-Cohen, S. (2019). Time-resolved imaging of carrier transport in halide perovskite thin films and evidence for nondiffusive transport. Physical Review Materials, 3(12), 125403 (10 pages).
  - Martinez-Martinez, L. A., Eizner, E., Kéna-Cohen, S., & Yuen-Zhou, J. (2019). Triplet harvesting in the polaritonic regime: A variational polaron approach. Journal of Chemical Physics, 151(5), 11 pages.
- 2018
  - Bobrovska, N., Matuszewski, M., Daskalakis, K. S., Maier, S. A., & Kéna-Cohen, S. (2018). Dynamical Instability of a Nonequilibrium Exciton-Polariton Condensate. ACS Photonics, 5(1), 111-118.
  - Barachati, F., Fieramosca, A., Hafezian, S., Gu, J., Chakraborty, B., Ballarini, D., Martinu, L., Menon, V., Sanvitto, D., & Kéna-Cohen, S. (2018). Interacting polariton fluids in a monolayer of tungsten disulfide. Nature Nanotechnology, 13(10), 906-910.
  - Brodeur, J., Arguel, R., Hafezian, S., Barachati, F., & Kéna-Cohen, S. (2018). Nearly 40% outcoupling efficiency in OLEDs with all-metal electrodes. Applied Physics Letters, 113(4), 5 pages.
  - Eizner, E., Brodeur, J., Barachati, F., Sridharan, A., & Kéna-Cohen, S. (2018). Organic Photodiodes with an Extended Responsivity Using Ultrastrong Light-Matter Coupling. ACS Photonics, 5(7), 2921-2927.
  - Martinez-Martinez, L. A., Du, M., Ribeiro, R. F., Kéna-Cohen, S., & Yuen-Zhou, J. (2018). Polariton-assisted singlet fission in acene aggregates. Journal of Physical Chemistry Letters, 9(8), 1951-1957.
- 2017
  - Sun, Z., Gu, J., Ghazaryan, A., Shotan, Z., Considine, C. R., Dollar, M., Chakraborty, B., Liu, X., Ghaemi, P., Kéna-Cohen, S., & Menon, V. M. (2017). Optical control of room temperature valley polaritons. Nature Photonics, 11(8), 491-496.
  - Lerario, G., Fieramosca, A., Barachati, F., Ballarini, D., Daskalakis, K. S., Dominici, L., De Giorgi, M., Maier, S. A., Gigli, G., Kéna-Cohen, S., & Sanvitto, D. (2017). Room-temperature superfluidity in a polariton condensate. Nature Physics, 13(9), 837-841.
  - Roth, D. J., Krasavin, A. V., Wade, A., Dickson, W., Murphy, A., Kéna-Cohen, S., Pollard, R., Wurtz, G. A., Richards, D., Maier, S. A., & Zayats, A. V. (2017). Spontaneous Emission inside a Hyperbolic Metamaterial Waveguide. ACS Photonics, 4(10), 2513-2521.
  - Barachati, F., Simon, J., Getmanenko, Y. A., Barlow, S., Marder, S. R., & Kéna-Cohen, S. (2017). Tunable third-harmonic generation from polaritons in the ultrastrong coupling regime. ACS Photonics, 5(1), 119-125.
- 2016
  - Wang, L., Moghe, D., Hafezian, S., Chen, P., Young, M., Elinski, M., Martinu, L., Kéna-Cohen, S., & Lunt, R. R. (2016). Alkali metal halide salts as interface additives to fabricate hysteresis-free hybrid perovskite-based photovoltaic devices. ACS Applied Materials & Interfaces, 8(35), 23086-23094.
  - Hafezian, S., Maloney, K., Lefebvre, J., Martinu, L., & Kéna-Cohen, S. (2016). Continuous ultrathin silver films deposited on SiO2 and SiNx using a self-assembled monolayer. Applied Physics Letters, 109(12), 4 pages.
  - Sanvitto, D., & Kéna-Cohen, S. (2016). The road towards polaritonic devices. Nature Materials, 15(10), 1061-1073.
- 2015
  - Barachati, F., De Liberato, S., & Kéna-Cohen, S. (2015). Generation of Rabi-frequency radiation using exciton-polaritons. Physical Review A, 92(3), 033828 (8 pages).
  - Kossoy, A., Merk, V., Simakov, D., Leosson, K., Kéna-Cohen, S., & Maier, S. A. (2015). Optical and Structural Properties of Ultra-thin Gold Films. Advanced Optical Materials, 3(1), 71-77.
  - Daskalakis, K. S., Maier, S. A., & Kéna-Cohen, S. (2015). Spatial Coherence and Stability in a Disordered Organic Polariton Condensate. Physical Review Letters, 115(3), 5 pages.
  - Liu, X., Galfsky, T., Sun, Z., Xia, F., Lin, E.-, Lee, Y.-H., Kéna-Cohen, S., & Menon, V. M. (2015). Strong light-matter coupling in two-dimensional atomic crystals. Nature Photonics, 9(1), 30-34.
- 2014
  - Gubbin, C. R., Maier, S. A., & Kéna-Cohen, S. (2014). Low-voltage polariton electroluminescence from an ultrastrongly coupled organic light-emitting diode. Applied Physics Letters, 104(23).
  - Daskalakis, K. S., Maier, S. A., Murray, R., & Kéna-Cohen, S. (2014). Nonlinear interactions in an organic polariton condensate. Nature Materials, 13(3), 271-278.
  - Di Martino, G., Sonnefraud, Y., Tame, M. S., Kéna-Cohen, S., Dieleman, F., Oezdemir, S. K., Kim, M. S., & Maier, S. A. (2014). Observation of Quantum Interference in the Plasmonic Hong-Ou-Mandel Effect. Physical Review Applied, 1(3).
- 2013
  - Kéna-Cohen, S., Stavrinou, P. N., Bradley, D. D. C., & Maier, A. (2013). Confined surface plasmon-polariton amplifiers. Nano Letters, 13(3), 1323-1329.
  - Mazza, L., Kéna-Cohen, S., Michetti, P., & La Rocca, G. C. (2013). Microscopic theory of polariton lasing via vibronically assisted scattering. Physical Review B, 88(7).
  - Kéna-Cohen, S., Maier, S. A., & Bradley, D. D. C. (2013). Ultrastrongly coupled exciton - polaritons in metal-clad organic semiconductor microcavities. Advanced Optical Materials, 1(11), 827-833.
- 2012
  - Sivan, Y., Sonnefraud, Y., Kéna-Cohen, S., Pendry, J. B., & Maier, S. A. (2012). Nanoparticle-assisted stimulated-emission-depletion nanoscopy. ACS Nano, 6(6), 5291-5296.
  - Di Martino, G., Sonnefraud, Y., Kéna-Cohen, S., Tame, M., Özdemir, S. ̧. K., Kim, M. S., & Maier, S. A. (2012). Quantum statistics of surface plasmon polaritons in metallic stripe waveguides. Nano Letters, 12(5), 2504-2508.
  - Lei, D. Y., Kéna-Cohen, S., Zou, B., Petrov, P. K., Sonnefraud, Y., Breeze, J., Maier, S. A., & Alford, N. M. (2012). Spectroscopic ellipsometry as an optical probe of strain evolution in ferroelectric thin films. Optics Express, 20(4), 4419-4427.
- 2011
  - Kéna-Cohen, S., Wiener, A., Sivan, Y., Stavrinou, P. N., Bradley, D. D. C., Horsfield, A., & Maier, S. A. (2011). Plasmonic sinks for the selective removal of long-lived states. ACS Nano, 5(12), 9958-9965.
  - Kéna-Cohen, S., Stavrinou, P. N., Bradley, D. D. C., & Maier, S. A. (2011). Random lasing in low molecular weight organic thin films. Applied Physics Letters, 99(4).
- 2010
  - Kéna-Cohen, S., & Forrest, S. R. (2010). Room-temperature polariton lasing in an organic single-crystal microcavity. Nature Photonics, 4(6), 371-375.
- 2009
  - Lunt, R. R., Kéna-Cohen, S., Benziger, J. B., & Forrest, S. R. (2009). Measurement of the mean inner potentials of anthracene and naphthalene. Physical Review Letters, 102(6).
- 2008
  - Kéna-Cohen, S., & Forrest, S. R. (2008). Giant Davydov splitting of the lower polariton branch in a polycrystalline tetracene microcavity. Physical Review. B, Condensed Matter and Materials Physics, 77(7).
  - Kéna-Cohen, S., Davanço, M., & Forrest, S. R. (2008). Resonant Rayleigh scattering from an anisotropic organic single-crystal microcavity. Physical Review. B, Condensed Matter and Materials Physics, 78(15).
  - Kéna-Cohen, S., Davanço, M., & Forrest, S. R. (2008). Strong exciton-photon coupling in an organic single crystal microcavity. Physical Review Letters, 101(11).
- 2007
  - Kéna-Cohen, S., & Forrest, S. R. (2007). Green polariton photoluminescence using the red-emitting phosphor PtOEP. Physical Review. B, Condensed Matter and Materials Physics, 76(7).
- 2006
  - Holmes, R. J., Kéna-Cohen, S., Menon, V. M., & Forrest, S. R. (2006). Strong coupling and hybridization of Frenkel and Wannier-Mott excitons in an organic-inorganic optical microcavity. Physical Review. B, Condensed Matter and Materials Physics, 74(23).
  - Kanno, H., Holmes, R. J., Sun, Y., Kéna-Cohen, S., & Forrest, S. R. (2006). White Stacked Electrophosphorescent Organic Light‐Emitting Devices Employing MoO3 as a Charge‐Generation Layer. Advanced Materials, 18(3), 339-342.
Conference papers (19)
- 2023
  - Liu, J., Thériault, P.-L., Wu, W., Wen, Q., Kéna-Cohen, S., Kira, M., & Mi, Z. (2023, June). Ferroelectric AlScN as an Extreme Nonlinear Quantum Material beyond LiNbO3 [Paper]. Optica Quantum 2.0 2023, Denver, Colorado, USA.
- 2022
  - Datta, B., Khatoniar, M., Deshmukh, P., Bushati, R., De Liberato, S., Kéna-Cohen, S., & Menon, V. M. (2022, May). Enhancing polariton nonlinearity via interlayer excitons in bilayer MoS2 [Paper]. CLEO: QELS_Fundamental Science 2022, San Jose, CA, USA.
  - Kéna-Cohen, S., Ishii, T., Herrera, F., & Adachi, C. (2022, September). How do localized excited molecules populate delocalized polariton states? [Paper]. Molecular Polaritonics 2022, Straubing, Germany.
  - Ishii, T., Hatakeyama, T., Adachi, C., & Kéna-Cohen, S. (2022, September). Radiative pumping of exciton-polaritons via phosphorescence in organic microcavities [Poster]. Molecular Polaritonics 2022, Straubing, Germany.
- 2020
  - Wang, J., Rousseau, A., Yang, M., Low, T., Francoeur, S., & Kéna-Cohen, S. (2020, May). A Thin Film Black Phosphorus Light-Emitting Diode [Paper]. Conference on Lasers and Electro-Optics (CLEO 2020), San Jose, CA, USA (2 pages).
  - Sridharan, A., Noel, N. K., Rand, B. P., & Kéna-Cohen, S. (2020, August). Diffusion and photon recycling in halide perovskite thin films: Insights from experiment and theory [Paper]. Physical Chemistry of Semiconductor Materials and Interfaces (XIX 2020) (6 pages).
- 2019
  - Patri, A., Jia, X., Mohsin, M., Kéna-Cohen, S., & Caloz, C. (2019, September). Compact grating coupler using asymmetric waveguide scatterers [Paper]. Frontiers in Optics, Washington, DC.
  - Kéna-Cohen, S. (2019, September). Manipulating Light and Matter using Strong Light-Matter Coupling [Paper]. Frontiers in Optics, Washington, DC.
  - Patri, A., Kéna-Cohen, S., & Caloz, C. (2019, September). Polarizing beamsplitter grating based on asymmetric slot waveguide scatterer [Paper]. 13th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials 2019), Rome, Italy.
  - Kéna-Cohen, S. (2019, May). Room-temperature quantum fluids of light [Paper]. Grande conférence sur les travaux de pointe : matériaux et dispositifs pour l'optiqque quantique et non linéaire, Montréal, Qc (13 pages).
- 2018
  - Barachati, F., Fieramosca, A., Hafezian, S., Gu, J., Chakraborty, B., Ballarini, D., Martinu, L., Menon, V., Sanvitto, D., & Kéna-Cohen, S. (2018, May). Interacting polariton fluids in a monolayer of tungsten disulfide [Paper]. CLEO: Applications and Technology (CLEO_AT 2018), San Jose, CA.
- 2015
  - Sun, Z., Liu, X., Huang, H.-H., Tseng, Y.-W., Lee, Y.-H., Kéna-Cohen, S., & Menon, V. M. (2015, May). Pseudospin selective microcavity polariton emission from two-dimensional atomic crystal [Paper]. CLEO: QELS Fundamental Science (CLEO-QELS 2015), San Jose, CA, United states.
- 2014
  - Sonnefraud, Y., Di Martino, G., Tame, M., Kéna-Cohen, S., Dieleman, F., Ozdemir, S. K., Kim, M. S., & Maier, S. A. (2014, July). Observation of quantum interference in the plasmonic Hong-Ou-Mandel effect [Abstract]. 16th International Conference on Transparent Optical Networks (ICTON 2014), Graz, Austria (1 page).
  - Xiaoze, L., Appavoo, K., Sfeir, M. Y., Kéna-Cohen, S., & Menon, V. M. (2014, June). Stimulated polariton emission from ZnO-nanoparticles based microcavity [Paper]. 2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications, San Jose, CA, USA.
  - Liu, X., Galfsky, T., Xia, F., Lin, E.-C., Lee, Y.-H., Ramasubramaniam, A., Kéna-Cohen, S., & Menon, V. M. (2014, June). Strong light-matter coupling in atomic monolayers [Paper]. CLEO: QELS Fundamental Science (CLEO-QELS 2014), San Jose, CA, United states.
- 2013
  - Kéna-Cohen, S. (2013, December). Polariton Condensation in Organic Semiconductor Materials [Paper]. 2013 MRS Fall meeting and exhibit. Symposium Q : Organic Microlasers-From Fundamentals to Device Application, Boston, Massachusetts.
- 2011
  - McCarron, R., Dickson, W., Bouillard, J.-S., Kéna-Cohen, S., Stavrinou, P., Bradley, D. D. C., Maier, S. A., & Zayats, A. V. (2011, May). Electrically-driven Surface Plasmon Polariton Generation Using Conjugated Polymers [Paper]. 12th European Quantum Electronics Conference (CLEO Europe 2015), Munich, Germany.
- 2007
  - Kéna-Cohen, S., & Forrest, S. R. (2007, October). Giant Davydov splitting of the lower polariton branch in a polycrystalline tetracene microcavity [Paper]. 20th Annual Meeting of the IEEE Lasers and Electro-Optics Society (LEOS 2007).
  - Kéna-Cohen, S., & Forrest, S. R. (2007, March). Green polariton photoluminescence in organic microcavities containing the red-emitting phosphor PtOEP [Paper]. 2007 APS March Meeting Abstracts.
Book chapters (4)
- 2020
  - Keeling, J., & Kéna-Cohen, S. (2020). Bose-einstein condensation of exciton-polaritons in organic microcavities. In Annual Review of Physical Chemistry (435-459).
- 2018
  - Kéna-Cohen, S. (2018). Cavity QED Effects in Molecular Systems. In Encyclopedia of Modern Optics (445-450).
- 2017
  - Daskalakis, K. S., Maier, S. A., & Kéna-Cohen, S. (2017). Polariton condensation in organic semiconductors. In Quantum Plasmonics (151-163).
- 2012
  - Kéna-Cohen, S., & Forrest, S. R. (2012). Exciton-Polaritons in Organic Semiconductor Optical Microcavities. In Exciton Polaritons in Microcavities (349-375).
Reports (1)
- 2016
  - Bobrovska, N., Matuszewski, M., Daskalakis, K. S., Maier, S. A., & Kéna-Cohen, S. (2016). Dynamical instability of a non-equilibrium exciton-polariton condensate. (Technical Report).
Theses (1)
- 2010
  - Kéna-Cohen, S. (2010). Strong exciton-photon coupling in organic semiconductor microcavities [Ph.D. Thesis, Princeton University].

Directory of Experts

Kéna-Cohen, Stéphane

Directory of Experts

Kéna-Cohen, Stéphane

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Stéphane Kéna-Cohen (84)