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5 papers
Determining ultrafast carrier dynamics of hybrid perovskites at various stages of nucleation and growth kinetics
Bibek S. Dhami, Ravi P. N. Tripathi, David J. Hoxie +1
With hybrid organic-inorganic perovskites increasing its technological reach, from photovoltaics solar cells to light-emitting devices, to nanoscale transistors, it is critical to…
Angle-Resolved Cathodoluminescence Polarimetry of Hybrid Perovskites
Bibek S. Dhami, Vasudevan Iyer, Aniket Pant +3
Coupling between light and matter strongly depends on the polarization of the electromagnetic field and the nature of the excitations in the material. As hybrid perovskites emerge…
Plasmofluidic Single-Molecule Surface Enhanced Raman Scattering from Dynamic Assembly of Plasmonic Nanoparticles
Partha Pratim Patra, Rohit Chikkaraddy, Ravi P. N. Tripathi +2
Single-molecule surface enhanced Raman scattering (SM-SERS) is one of the vital applications of plasmonic nanoparticles. The SM-SERS sensitivity critically depends on plasmonic hot…
Doughnut shaped emission from vertical organic nanowire coupled to thin plasmonic film
Adarsh B. Vasista, Ravi P. N. Tripathi, Shailendra K. Chaubey +2
Vertical nanowires facilitate an innovative mechanism to channel the optical field in the orthogonal direction and act as a nanoscale light source. Subwavelength, vertically orient…
Directional out-coupling of light from a plasmonic nanowire-nanoparticle junction
Danveer Singh, Arindam Dasgupta, Aswathy V. G. +2
We experimentally show how a single Ag nanoparticle (NP) coupled to an Ag nanowire (NW) can convert propagating surface plasmon polaritons to directional photons. By employing dual…