Plasmonic Sensing Using Nanodome Arrays Fabricated by Soft Nanoimprint Lithography

Abstract

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

A Polyferroplatinyne Precursor for the Rapid Fabrication of L10‐FePt‐type Bit Patterned Media by Nanoimprint Lithography

“…Additionally, this technique is generic in nature, and can be readily adopted for the rapid nanopatterning of complex NPs with designed features on many surfaces, such kind of patterns are of high demand in areas such as photovoltaics [30] and biochemical sensing applications. [31] In the future, we will focus on the creation of patterns of ferromagnetic FePt alloy NPs at further reduced dimensions down to tens of nanometers in order to achieve an areal density of over 1 Tb in −2 . Such nanotransfer printing method is directly applicable to the fabrication of 3D nanopatterned arrays that are scalable to arbitrarily large areas and are compatible with manufacturing.…”

Recent advances in surface plasmon resonance imaging: detection speed, sensitivity, and portability

“…To overcome this limitation, nanoimprint lithography has been introduced and received great attention. Using this technique, McPhillips et al [100] fabricated arrays of gold-coated nanodomes on glass substrates. These nanodomes were highly sensitive to the refractive index of the surrounding medium due to their complex plasmonic resonances.…”

Plasmonic biosensors

“…In its basic form, the T‐LSPR sensor is comprised of a high density of plasmon resonant nanostructures immobilized onto a glass slide or similar transparent substrate (Figure (b)). The structures are typically in the form of colloidal NPs immobilized onto the substrate, island‐like structures from annealed thin gold films, or nanostructures formed on the substrate by a patterning process . The collective LSPR of a large population of the immobilized nanostructures are then interrogated in high throughput by a single optical extinction measurement (loss of light due to absorbance and scattering from the LSPRs) using a simple, collinear optical light path.…”