Ag-protein plasmonic architectures for surface plasmon-coupled emission enhancements and Fabry-Perot mode-coupled directional fluorescence emission

作者：Badiya Pradeep Kumar; Patnaik Sai Gourang; Srinivasan Venkatesh; Reddy Narendra; Manohar Chelli Sai; Vedarajan Raman; Mastumi Noriyoshi; Belliraj Siva Kumar; Ramamurthy Sai Sathish

来源：Chemical Physics Letters, 2017, 685: 139-145.

DOI：10.1016/j.cplett.2017.07.056

• Proteins
• Silver nanoparticles
• Surface plasmon-coupled emission
• Plasmonic spacer engineering

We report the use of silver decorated plant proteins as spacer material for augmented surface plasmon-coupled emission (120-fold enhancement) and plasmon-enhanced Raman scattering. We extracted several proteins from different plant sources [Triticum aestivum (TA), Aegle marmelos (AM), Ricinus communis (RC), Jatropha curcas (JC) and Simarouba glauca (SG)] followed by evaluation of their optical properties and simulations to rationalize observed surface plasmon resonance. Since the properties exhibited by protein thin films is currently gaining research interest, we have also carried out simulation studies with Ag-protein biocomposites as spacer materials in metal-dielectric-metal planar microcavity architecture for guided emission of Fabry-Perot mode-coupled fluorescence.

• 出版日期2017-10-1