Plasmonic octagonal quasicrystals for surface enhanced Raman sensing

Plasmonic nanogalaxies: multiscale aperiodic arrays for surface-enhanced Raman sensing.

The accurate and reproducible control of intense electromagnetic fields localized on the nanoscale is essential for the engineering of optical sensors based on the surface-enhanced Raman scattering (SERS) effect. In this paper, using rigorous generalized Mie theory (GMT) calculations and a combined top-down/bottom-up nanofabrication approach, we design and experimentally demonstrate approximate...

Plasmonic substrates for surface enhanced Raman scattering.

As an advanced analytical tool, surface-enhanced Raman scattering (SERS) has broad applications in identification of colorants in paints and glazes, hazard detection to ensure food safety, biomedicine and diagnosis, environmental monitoring, detection of explosives and forensic science. In this review, main types of plasmonic substrates, which include solid substrate with metallic nanostructure...

Plasmonic band gap structures for surface-enhanced Raman scattering.

Surface-enhanced Raman Scattering (SERS) of rhodamine 6G (R6G) adsorbed on biharmonic metallic grating structures was studied. Biharmonic metallic gratings include two different grating components, one acting as a coupler to excite surface plasmon polaritons (SPP), and the other forming a plasmonic band gap for the propagating SPPs. In the vicinity of the band edges, localized surface plasmons ...

Macroscale Plasmonic Substrates for Highly Sensitive Surface-Enhanced Raman Scattering**

Glucose Sensing with Surface-Enhanced Raman Spectroscopy

Diabetes mellitus is a chronic disorder that requires careful regulation of blood-glucose levels in order to maintain the health of diabetic patients. Failure to regulate these levels within tight limits leads to severe secondary health complications to the diabetics’ retina, kidneys, nerves, and circulatory system [1]. Most commonly, diabetics measure blood-glucose levels four to six times per...