We present our computationally efficient approach to modeling graphene-based active metadevices followed by the design and optimization of a graphene-based tunable refractive index (RI) sensor with ultra-high sensitivity. The classical integral multi-variate surface conductivity is reformulated in the time and frequency domains with physically interpretable and fast-to-compute integration-free terms. The model reveals decomposition of graphene response into a universal constant term plus a damped oscillator (digamma functions in the frequency domain) plus non-oscillating correction terms for near-zero potentials. We showcase the advantage of our approach by optimizing an ultrasensitive, tunable RI sensor with graphene and hexagonal boron nitride nanoribbons.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.