Jacob Spear, Midlands

Jacob began his PhD in October 2014, working as a member of the iSMART group within the Physics department of Nottingham Trent University. His PhD focuses on the laser fabrication of plasmonic nanoparticles for use as sensing elements in a range of applications. These nanoparticles are of interest due to their unique optical response which stems from the Local Surface Plasmonic Resonance (LSPR) effect. His initial investigations have focused on using gold and silver on polymer substrates to produce flexible SERS surfaces.

Prior to beginning his PhD, Jacob completed his undergraduate degree at Nottingham Trent University in the production of a quantum dot nanostructure using colloidal lithography. Jacob is heavily involved in outreach activities, participating in events both internally as a Student Ambassador and externally as a STEM Ambassador like university Open Days where he takes prospective students on tours of the Physics facilities and research labs and the IOP Extreme Physics residential course for GCSE students. He also acts as a demonstrator for undergraduate experimental laboratory sessions.

Plasmonic nanoparticles and their applications: What, how and why

There are many questions we ask on our daily lives, but some of the more importat questions are 'can my gadgets do more?' and 'how much better can modern technology get?'. Local Surface Plasmon Resonance, or LSPR, is one road we can go down to not only answer these questions, but allow us access to a rapidly developing research field as well. LSPR can be applied to a wide range of applications in screen displays, sensors and detectors, memory devices and many more.

In this lecture, we will look at how we can produce and measure LSPR, the underlying science behind this phenomenon, a powerful vibration of the conducting electrons in very small metallic structures, and its use in a selection of key applications such as Surface Enhanced Raman Scattering, SERS, and Charge Memory Storage Devices as well as the impact to our daily lives.


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