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Broadband Four-Wave Mixing Enhanced by Plasmonic Surface Lattice Resonance and Localized Surface Plasmon Resonance in an Azimuthally Chirped Grating
Abhik Chakraborty, Parijat Barman, Ankit Kumar Singh +8
Plasmonic enhancement of nonlinear light-matter interaction can be achieved via dedicated optimization of resonant plasmonic modes that are spectrally matched to the different wave…
Spectrometer-free optical hydrogen sensing based on Fano-like spatial distribution of transmission in a metal-insulator-metal plasmonic Doppler grating
Yi-Ju Chen, Fan-Cheng Lin, Ankit Kumar Singh +2
Optical nanosensors are promising for hydrogen sensing because they are small, free from spark generation, and feasible for remote optical readout. Conventional optical nanosensors…
Signal and Noise Analysis for Chiral Structured Illumination Microscopy
Shiang-Yu Huang, Ankit Kumar Singh, Jer-Shing Huang
Recently, chiral structured illumination microscopy has been proposed to image fluorescent chiral domains at sub-wavelength resolution. Chiral structured illumination microscopy is…
Simultaneous Imaging Achiral and Chiral Domains beyond Diffraction Limit by Structured-illumination Microscopy
Jiwei Zhang, Shiang-Yu Huang, Ankit Kumar Singh +1
Modern optical microscopy methods have been advanced to provide super resolution at high imaging speed, but not chirality discriminative. We recently proposed chiral structured-ill…
Controlling Fano resonance using the Geometrical Phase of light in spatially tailored waveguided plasmonic crystals
Subir K. Ray, Ankit K. Singh, Ajmal +3
Fano resonance exhibiting an asymmetric spectral line shape is a universal phenomenon observed in diverse physical systems. Here we experimentally establish a direct link between t…
Mueller matrix spectroscopy of Fano resonance in Plasmonic Oligomers
Shubham Chandel, Ankit K Singh, Aman Agrawal +4
Fano resonance in plasmonic oligomers originating from the interference of a spectrally broad superradiant mode and a discrete subradiant mode is under intensive recent investigati…