23 citations · 112 across the 12 of their papers we have counts for
12 papers · 1 filter
Meta-Diastereomers Hierarchical Multiscale Chiral Interactions Between Biomolecules and Nanoscale Enantiomers
Dominic J. P. Koyroytsaltis-McQuire, Rahul Kumar, Shailendra K. Chaubey +5
We introduce meta-diastereomers, hybrid systems where molecular chirality (\,nm) and nanoscale chirality (\,nm) combine to create a new hierarchical chiral state wit…
Attomole enantiomeric discrimination of small molecules using an achiral SERS reporter and chiral plasmonics
Shailendra K Chaubeya, Rahul Kumar, Paula Laborda +6
Biologically important molecules span a size range from very large biomacromolecules, such as proteins to small metabolite molecules. Consequently, spectroscopic techniques which c…
Symmetry control of strong chiral light matter interactions in photonic nanocavities for efficient circularly polarised emission
Rahul Kumar, Ben Trodden, Anastasiia Klimash +6
Chiral excited electronic states of molecules have an intrinsic sense of handedness, or twist, and are the active component in energy efficient display technologies and in new phot…
Chiral Metafilms and Surface Enhanced Raman Scattering For Enantiomeric Discrimination of Helicoid Nanoparticles
Martin Kartau, Anastasia Skvortsova, Victor Tabouillot +10
Chiral nanophotonic platforms provide a means of creating near fields with both enhanced asymmetric properties and intensities. They can be exploited for optical measurements that…
Directing Monolayer Tungsten Disulfide Photoluminescence using a Bent Plasmonic Nanowire on a Mirror Cavity
Shailendra K. Chaubey, Sunny Tiwari, Ashutosh Shukla +3
Designing directional optical antennas without compromising the field enhancement requires specially designed optical cavities. Herein, we report on the experimental observations o…
Mirror-Coupled Microsphere can narrow the Angular distribution of Photoluminescence from WS2 Monolayers
Shailendra K. Chaubey, Sunny Tiwari, Gokul M. A. +3
Engineering optical emission from two dimensional, transition metal dichalcogenides (TMDs) materials such as Tungsten disulphide (WS2) has implications in creating and understandin…
Beaming Elastic and SERS Emission from Bent-Plasmonic Nanowire on a Mirror Cavity
Sunny Tiwari, Adarsh B. Vasista, Diptabrata Paul +2
We report on the experimental observation of beaming elastic and surface enhanced Raman scattering (SERS) emission from a bent-nanowire on a mirror (B-NWoM) cavity. The system was…
Directional emission from WS2 monolayer coupled to plasmonic Nanowire-on-Mirror Cavity
Shailendra K. Chaubey, Gokul M. A., Diptabrata Paul +3
Influencing spectral and directional features of exciton emission characteristics from 2D transition metal dichalcogenides by coupling it to plasmonic nano-cavities has emerged as…
Momentum-resolved surface enhanced Raman scattering from a nanowire-nanoparticle junction cavity
Adarsh B. Vasista, Shailendra K. Chaubey, David J. Gosztola +3
Herein we report experimental evidence of directional SERS from molecules situated inside a single nanowire-nanoparticle junction cavity. The emission was confined to a narrow rang…
Large-scale optothermal assembly of colloids mediated by a gold microplate
Vandana Sharma, Diptabrata Paul, Shailendra K Chaubey +2
Light-activated colloidal assembly and swarming can act as model systems to explore non-equilibrium state of matter. In this context, creating new experimental platforms to facilit…
Vectorial Fluorescence Emission from Microsphere Coupled to Gold Mirror
Adarsh B. Vasista, Sunny Tiwari, Deepak K. Sharma +2
We report on the generation, and momentum space distribution of fluorescence emission from individual SiO2 microsphere on dye coated Au mirror. The molecular fluorescence emission…
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…