Affiliation:
1. Vrije Universiteit Amsterdam
2. Rice University
3. Duke University
4. Department of Civil and Mechanical Engineering. Technical University of Denmark
Abstract
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.
Funder
U.S. Army Research Office through the Institute for Soldier Nanotechnologies
PAPPA program of DARPA MTO
Danmarks Grundforskningsfond
Subject
Atomic and Molecular Physics, and Optics
Cited by
1 articles.
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