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Exploration of the interplay between gain and loss in optical metamaterials can lead to novel device functionalities. Here we demonstrate a single-mode laser with unique cavity mode manipulation capability based on thresholdless parity-time symmetry breaking.
The interplay between gain and loss in optical metamaterials can lead to novel device functionalities. Here we demonstrate a single-mode laser with unique cavity mode manipulation capability based on thresholdless parity-time symmetry breaking.
Here, we exploit implementation of optical losses to develop innovative optical phenomena and devices, for example, mimicking exceptional points and their unique transport characteristics in optics at both nano and macro scales.
A plasmonic resonant nano-focusing-antenna has been experimentally integrated with a Si waveguide to effectively convert an incoming waveguide mode to a localized plasmon mode and focus light in an ultrasmall volume in all 3 dimensions.
Nanoscale field confinement enabled by plasmonic phenonena [1] has great potential to revolutionize many applications in nanophotonics, including bio-sensing, imaging, and magnetic recording. Various schemes using propagating surface plasmon polariton (SPP) waves have been suggested [2-4], but they experience power losses due to SPP propagation, restricting their practical applications. Here we experimentally...
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