0000000000275458

AUTHOR

Ke Jiang

showing 2 related works from this author

Large area conductive nanoaperture arrays with strong optical resonances and spectrally flat terahertz transmission

2017

Using simple and inexpensive nanosphere lithography, we produce large, centimeter-squared sized thin golden films patterned with a hexagonal array of nanoapertures with controllable dimensions on the order of 100–300 nm, spaced by a 350–375 nm pitch distance. The optical transmission spectra of our samples are dominated by the resonant plasmonic features in the spectral range 500–700 nm, caused by the nanostructure in the film. At the same time, the transmission at terahertz (THz) radiation is as high as ∼10% and is spectrally flat. Our measurements are in agreement with finite difference time domain simulations. Such thin metal hole array films allow for very efficient injection of optical…

0301 basic medicineNanostructureMaterials sciencePhysics and Astronomy (miscellaneous)Terahertz radiationbusiness.industryNanophotonicsFinite-difference time-domain methodPhysics::Optics02 engineering and technologyPhysik (inkl. Astronomie)021001 nanoscience & nanotechnology03 medical and health sciences030104 developmental biologyNanolithographyOpticsTransmission (telecommunications)OptoelectronicsNanosphere lithography0210 nano-technologybusinessPlasmonApplied Physics Letters
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Nano-holes vs nano-cracks in thin gold films: What causes anomalous THz transmission?

2015

Nano-structuring materials can change their properties extraordinarily, but so can defects caused by manufacturing. We study the effect of capacitive defects on terahertz transmission in golden nanomeshes, and find their influence crucial.

Materials scienceTransmission (telecommunications)business.industryTerahertz radiationCapacitive sensingNano-OptoelectronicsExtraordinary optical transmissionTransmission coefficientThin filmbusinessRefractive index
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