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Tunable large resonant absorption in a midinfrared graphene Salisbury screen

Jang, Min Seok and Brar, Victor W. and Sherrott, Michelle C. and Lopez, Josue J. and Kim, Laura and Kim, Seyoon and Choi, Mansoo and Atwater, Harry A. (2014) Tunable large resonant absorption in a midinfrared graphene Salisbury screen. Physical Review B, 90 (16). Art. No. 165409. ISSN 1098-0121. doi:10.1103/PhysRevB.90.165409.

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The optical absorption properties of periodically patterned graphene plasmonic resonators are studied experimentally as the graphene sheet is placed near a metallic reflector. By varying the size and carrier density of the graphene, the parameters for achieving a surface impedance closely matched to free-space (Z_0 = 377Ω) are determined and shown to result in 24.5% total optical absorption in the graphene sheet. Theoretical analysis shows that complete absorption is achievable with higher doping or lower loss. This geometry, known as a Salisbury screen, provides an efficient means of light coupling to the highly confined graphene plasmonic modes for future optoelectronic applications.

Item Type:Article
Related URLs:
URLURL TypeDescription Information Paper
Jang, Min Seok0000-0002-5683-1925
Sherrott, Michelle C.0000-0002-7503-9714
Kim, Seyoon0000-0002-8040-9521
Atwater, Harry A.0000-0001-9435-0201
Alternate Title:Tunable Large Resonant Absorption in a Mid-IR Graphene Salisbury Screen
Additional Information:© 2014 American Physical Society. Received 24 March 2014; Published 8 October 2014. This work was supported by the Air Force Office of Scientific Research under Multidisciplinary University Research Initiative Awards No. FA9550-12-1-0488 (V.W.B.), FA9550-12-1-0024 (S.K. and L.K.K.), and the Department of Energy, Office of Science, under Grant No. DE-FG02-07ER46405 (M.C.S. and H.A.A.). M. S. Jang and M. Choi acknowledge support from the R&D Program of the Global Frontier Center for Multiscale Energy Systems funded by the National Research Foundation under the Ministry of Science, ITC & Future Planning, Korea (Grants No. 2011-0031561 and No. 2011-0031577). M. S. Jang acknowledges a postdoctoral fellowship from the POSCO T. J. Park Foundation. V. W. Brar gratefully acknowledges a postdoctoral fellowship from the Kavli Nanoscience Institute. M. C. Sherrott gratefully acknowledges graduate fellowship support from the Resnick Sustainability Institute at Caltech. S. Kim and M. S. Jang acknowledge support from a Samsung Fellowship.
Group:Kavli Nanoscience Institute, Resnick Sustainability Institute
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)FA9550-12-1-0488
Air Force Office of Scientific Research (AFOSR)FA9550-12-1-0024
Department of Energy (DOE)DE-FG02-07ER46405
National Research Foundation of Korea2011-0031561
National Research Foundation of Korea2011-0031577
Kavli Nanoscience InstituteUNSPECIFIED
Resnick Sustainability InstituteUNSPECIFIED
Ministry of Science, ICT and Future Planning (Korea)UNSPECIFIED
Issue or Number:16
Classification Code:PACS: 78.67.Wj; 73.20.Mf; 78.20.Jq.
Record Number:CaltechAUTHORS:20141204-101624900
Persistent URL:
Official Citation:Jang, M. S., Brar, V. W., Sherrott, M. C., Lopez, J. J., Kim, L., Kim, S., . . . Atwater, H. A. (2014). Tunable large resonant absorption in a midinfrared graphene Salisbury screen. Physical Review B, 90(16), 165409.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:52379
Deposited On:04 Dec 2014 20:22
Last Modified:10 Nov 2021 19:40

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