Nonlinear Optical Probe of Tunable Surface Electrons on a Topological Insulator
We use ultrafast laser pulses to experimentally demonstrate that the second-order optical response of bulk single crystals of the topological insulator Bi2Se3 is sensitive to its surface electrons. By performing surface doping dependence measurements as a function of photon polarization and sample o...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
American Physical Society
2011
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| Online Access: | http://hdl.handle.net/1721.1/63097 https://orcid.org/0000-0003-2226-6443 https://orcid.org/0000-0002-6394-4987 https://orcid.org/0000-0002-7022-8313 https://orcid.org/0000-0002-0042-9195 |