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Tunable large resonant absorption in a midinfrared graphene Salisbury screen
Open accessAbstract
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 $({Z}_{0}\phantom{\rule{0.16em}{0ex}}=\phantom{\rule{0.16em}{0ex}}377\phantom{\rule{0.16em}{0ex}}\ensuremath{\Omega})$ 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.
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Citations
Cites
Fine Structure Constant Defines Visual Transparency of Graphene
Nair, R. R., Blake, P., Grigorenko, A. N., Novoselov, K. S., Booth, T. J., Stauber, T., Peres, N. M. R., & Geim, A. K. (2008) · Science · doi:10.1126/science.1156965 · Cited by 9,084
Metadata
- Authors
- Jang, M. S., Brar, V. W., Sherrott, M. C., Lopez, J. J., Kim, L., Kim, S., Choi, M., & Atwater, H. A.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 2014-10-08
- Volume
- 90
- Issue
- 16
- ISSN
- 1098-0121 (ISSN-L)
- 1550-235X
- OpenAlex
- W2049037617
- Cited by
- 188
- References
- 1
- FWCI
- 12.25
- Type
- journal article
- Language
- en
- Open access
- green
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- Jang, M. S., Brar, V. W., Sherrott, M. C., Lopez, J. J., Kim, L., Kim, S., Choi, M., & Atwater, H. A. (2014). Tunable large resonant absorption in a midinfrared graphene Salisbury screen. Physical Review B. https://doi.org/10.1103/physrevb.90.165409
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