Designing structures that maximize spatially averaged surface-enhanced Raman spectra.
Journal Article (Journal Article)
We present a general framework for inverse design of nanopatterned surfaces that maximize spatially averaged surface-enhanced Raman (SERS) spectra from molecules distributed randomly throughout a material or fluid, building upon a recently proposed trace formulation for optimizing incoherent emission. This leads to radically different designs than optimizing SERS emission at a single known location, as we illustrate using several 2D design problems addressing effects of hot-spot density, angular selectivity, and nonlinear damage. We obtain optimized structures that perform about 4 × better than coating with optimized spheres or bowtie structures and about 20 × better when the nonlinear damage effects are included.
- Yao, W; Verdugo, F; Everitt, HO; Christiansen, RE; Johnson, SG
- January 2023
Volume / Issue
- 31 / 3
Start / End Page
- 4964 - 4977
Electronic International Standard Serial Number (EISSN)
International Standard Serial Number (ISSN)
Digital Object Identifier (DOI)