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Emission kinetics of HITC laser dye on top of arrays of Ag nanowires

https://doi.org/10.1515/nanoph-2021-0374

Rout, Sangeeta; Peters, Vanessa N.; Pradhan, Sangram K.; Bonner, Carl E.; Noginov, Mikhail A. (October 2021, Nanophotonics)

Abstract We have grown arrays of silver nanowires in pores of anodic alumina membranes (metamaterials with hyperbolic dispersion at λ ≥ 615 nm), spin coated them with the dye-doped polymer (HITC:PMMA), and studied the rates of radiative and nonradiative relaxation as well as the concentration quenching (Förster energy transfer to acceptors). The results were compared to those obtained on top of planar Ag films and glass (control samples). The strong spatial inhomogeneity of emission kinetics recorded in different spots across the sample and strong inhibition of the concentration quenching in arrays of Ag nanowires are among the most significant findings of this study.
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Control of Physical and Chemical Processes with Nonlocal Metal–Dielectric Environments

https://doi.org/10.1021/acsphotonics.9b00734

Peters, Vanessa N.; Prayakarao, Srujana; Koutsares, Samantha R.; Bonner, Carl E.; Noginov, Mikhail A. (November 2019, ACS Photonics)

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Study of conductivity of the poly(3-hexylthiophene-2, 5-diyl) polymer (P3HT) in resonant Fabry-Perot cavities

https://doi.org/10.1117/12.2323925

Asane, Joshua; Peters, Vanessa N.; Rohan, Alexandra; Wallace, Tylisia N.; Peters, D'Angelo; Noginov, Mikhail A.; Engheta, Nader; Noginov, Mikhail A.; Zheludev, Nikolay I. (September 2018, Metamaterials, Metadevices, and Metasystems 2018)

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Effect of Strong Coupling on Photodegradation of the p3ht Semiconducting Polymer

https://doi.org/10.1364/CLEO_QELS.2017.FTu4G.6

Peters, Vanessa N.; Faruk, M. O.; Alexander, Rohan; Peters, D'Angelo A.; Noginov, Mikhail (January 2017, CLEO: QELS_Fundamental Science 2017)

We have studied photodegradation of the semiconducting polymer p3ht in the resonant cavity and the control samples. The nearly three-fold reduction of the reaction rate is attributed to the strong polymer-cavity coupling.
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