Karthik Kumar

TL;DR: The colour-mapping strategy produces images with both sharp colour changes and fine tonal variations, is amenable to large-volume colour printing via nanoimprint lithography, and could be useful in making microimages for security, steganography, nanoscale optical filters and high-density spectrally encoded optical data storage.

TL;DR: This work expands the visible color space through spatially mixing and adjusting the nanoscale spacing of discrete nanostructures to pave the way toward a new generation of low-cost, high-resolution, plasmonic color printing with direct applications in security tagging, cryptography, and information storage.

TL;DR: In this paper, the authors demonstrate independently tunable biaxial color pixels composed of isolated nanoellipses or nanosquare dimers that can exhibit a full range of colours in reflection mode with linear polarization dependence.

TL;DR: With this method, densely packed gold nanostructures of varying geometries separated by ultrasmall gaps are fabricated by controlling structure sizes during lithography with nanometer precision, so the plasmon resonances of the resulting patterns could be accurately tuned.

TL;DR: Improved techniques for lipid membrane self-assembly and membrane protein incorporation on nano- and microporous substrates have led to great improvements in measurement sensitivity, membrane stability and packaging, suggesting that nanopore-spanning membranes are leading contenders for a breakthrough in membrane protein screening and biosensing applications.