Effects of screening on the optical absorption in graphene and in metallic monolayers
Screening is one of the fundamental concepts in solid-state physics. It has a great impact on the electronic properties of graphene, where huge mobilities were observed in spite of the large concentration of charged impurities. While static screening has successfully explained dc mobilities, screeni...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2014
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| Online Access: | http://hdl.handle.net/1721.1/88759 https://orcid.org/0000-0002-7184-5831 |
| _version_ | 1826204110653751296 |
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| author | Jablan, Marinko Buljan, Hrvoje Soljacic, Marin |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Jablan, Marinko Buljan, Hrvoje Soljacic, Marin |
| author_sort | Jablan, Marinko |
| collection | MIT |
| description | Screening is one of the fundamental concepts in solid-state physics. It has a great impact on the electronic properties of graphene, where huge mobilities were observed in spite of the large concentration of charged impurities. While static screening has successfully explained dc mobilities, screening properties can be significantly changed at infrared or optical frequencies. In this paper, we discuss the influence of dynamical screening on the optical absorption of graphene and other two-dimensional electron systems such as metallic monolayers. This research is motivated by recent experimental results that pointed out that graphene plasmon linewidths and optical scattering rates can be much larger than scattering rates determined by dc mobilities. Specifically, we discuss a process in which a photon incident on a graphene plane can excite a plasmon by scattering from an impurity, or a surface optical phonon of the substrate. |
| first_indexed | 2024-09-23T12:49:04Z |
| format | Article |
| id | mit-1721.1/88759 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:49:04Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/887592022-09-28T10:12:25Z Effects of screening on the optical absorption in graphene and in metallic monolayers Jablan, Marinko Buljan, Hrvoje Soljacic, Marin Massachusetts Institute of Technology. Department of Physics Soljacic, Marin Screening is one of the fundamental concepts in solid-state physics. It has a great impact on the electronic properties of graphene, where huge mobilities were observed in spite of the large concentration of charged impurities. While static screening has successfully explained dc mobilities, screening properties can be significantly changed at infrared or optical frequencies. In this paper, we discuss the influence of dynamical screening on the optical absorption of graphene and other two-dimensional electron systems such as metallic monolayers. This research is motivated by recent experimental results that pointed out that graphene plasmon linewidths and optical scattering rates can be much larger than scattering rates determined by dc mobilities. Specifically, we discuss a process in which a photon incident on a graphene plane can excite a plasmon by scattering from an impurity, or a surface optical phonon of the substrate. United States. Dept. of Energy. Solid-State Solar-Thermal Energy Conversion Center (Grant DE-SC0001299) Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies (Contract W911NF-13-D-0001) 2014-08-18T15:53:53Z 2014-08-18T15:53:53Z 2014-02 2014-01 Article http://purl.org/eprint/type/JournalArticle 1098-0121 1550-235X http://hdl.handle.net/1721.1/88759 Jablan, Marinko, Marin Soljacic, and Hrvoje Buljan. “Effects of Screening on the Optical Absorption in Graphene and in Metallic Monolayers.” Phys. Rev. B 89, no. 8 (February 2014). © 2014 American Physical Society https://orcid.org/0000-0002-7184-5831 en_US http://dx.doi.org/10.1103/PhysRevB.89.085415 Physical Review B Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society American Physical Society |
| spellingShingle | Jablan, Marinko Buljan, Hrvoje Soljacic, Marin Effects of screening on the optical absorption in graphene and in metallic monolayers |
| title | Effects of screening on the optical absorption in graphene and in metallic monolayers |
| title_full | Effects of screening on the optical absorption in graphene and in metallic monolayers |
| title_fullStr | Effects of screening on the optical absorption in graphene and in metallic monolayers |
| title_full_unstemmed | Effects of screening on the optical absorption in graphene and in metallic monolayers |
| title_short | Effects of screening on the optical absorption in graphene and in metallic monolayers |
| title_sort | effects of screening on the optical absorption in graphene and in metallic monolayers |
| url | http://hdl.handle.net/1721.1/88759 https://orcid.org/0000-0002-7184-5831 |
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