Plasmonic Sensing Using Nanodome Arrays Fabricated by Soft Nanoimprint Lithography

Arrays of gold-coated nanodomes were fabricated on glass substrates using a soft<br/>nanoimprint lithography technique. Optical transmission measurements revealed complex<br/>plasmonic resonances that proved highly sensitive to the array dimensions, the thickness of<br/>the gold layer, and the refractive index of the surrounding medium. As one promising<br/>application for these structures, the refractive index sensing capabilities of the nanodome<br/>arrays were assessed.