Cavity-enhanced mid-infrared absorption in perforated graphene

Alexander Y. Zhu; Fei Yi; Jason C. Reed; Ertugrul Cubukcu

doi:10.1117/1.JNP.8.083888

16 June 2014 Cavity-enhanced mid-infrared absorption in perforated graphene

Alexander Y. Zhu, Fei Yi, Jason C. Reed, Ertugrul Cubukcu

Author Affiliations +

Journal of Nanophotonics, Vol. 8, Issue 1, 083888 (June 2014). https://doi.org/10.1117/1.JNP.8.083888

Abstract

Graphene’s unique electronic structure due to its two-dimensional nature results in numerous advantageous properties, such as highly tunable chemical potential and the ability to support highly confined surface plasmons with exceptionally long lifetimes. In the context of optical absorbers, we theoretically calculate, using both analytical and numerical techniques, that the coupling of a continuous monolayer of perforated graphene to simple optical cavities results in greatly enhanced absorption in the mid-infrared regime due to graphene surface plasmons, with tunability of the resonance peak by more than its full width at half maximum. We identified and studied two distinct cases: quarter wavelength Fabry–Perot cavities which result in near-unity absorption, and deeply subwavelength cavities which enhance the universal graphene absorption approximately fourfold. The structural simplicity and large spectral tunability of the proposed designs render them applicable to infrared modulators, sensors, and bolometers.

Citation Download Citation

Alexander Y. Zhu, Fei Yi, Jason C. Reed, and Ertugrul Cubukcu "Cavity-enhanced mid-infrared absorption in perforated graphene," Journal of Nanophotonics 8(1), 083888 (16 June 2014). https://doi.org/10.1117/1.JNP.8.083888

Published: 16 June 2014

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

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.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available