Theoretical and experimental study of second harmonic generation from the surface of the topological insulator Bi[subscript 2]Se[subscript 3]
We develop a theoretical model that describes the second harmonic generation of light from the surface of the topological insulator Bi[subscript 2]Se[subscript 3] and experimentally demonstrate that the technique is sensitive to the surface electrons. By performing a crystal symmetry analysis of Bi[...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2012
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| Online Access: | http://hdl.handle.net/1721.1/73870 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 |
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| author | McIver, James Hsieh, David Drapcho, Steven G. Torchinsky, Darius Hosseinzadeh Gardner, Dillon Richard Lee, Young S. Gedik, Nuh |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics McIver, James Hsieh, David Drapcho, Steven G. Torchinsky, Darius Hosseinzadeh Gardner, Dillon Richard Lee, Young S. Gedik, Nuh |
| author_sort | McIver, James |
| collection | MIT |
| description | We develop a theoretical model that describes the second harmonic generation of light from the surface of the topological insulator Bi[subscript 2]Se[subscript 3] and experimentally demonstrate that the technique is sensitive to the surface electrons. By performing a crystal symmetry analysis of Bi[subscript 2]Se[subscript 3](111) we determine the nonlinear electric susceptibility tensor elements that give rise to second harmonic generation. Using these results, we present a phenomenological model that shows that the relative magnitudes of these tensor elements can be determined by measuring the polarization and intensity of the radiated second harmonic light as a function of the in-plane crystal orientation and incident laser polarization. We describe optical techniques capable of isolating second harmonic light and, using these techniques, we measure the first-order linear optical and second-order nonlinear optical responses as a function of crystal orientation and laser polarization on bulk single crystals of Bi[subscript 2]Se[subscript 3](111). The experimental results are consistent with our theoretical description. By comparing the data to our theoretical model we determine that a portion of the measured second harmonic light originates from the accumulation region of Bi[subscript 2]Se[subscript 3](111), which we confirm by performing surface doping-dependent studies. Our results show that second harmonic generation is a promising tool for spectroscopic studies of topological surfaces and buried interfaces. |
| first_indexed | 2024-09-23T11:33:19Z |
| format | Article |
| id | mit-1721.1/73870 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:33:19Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/738702022-09-27T20:19:21Z Theoretical and experimental study of second harmonic generation from the surface of the topological insulator Bi[subscript 2]Se[subscript 3] McIver, James Hsieh, David Drapcho, Steven G. Torchinsky, Darius Hosseinzadeh Gardner, Dillon Richard Lee, Young S. Gedik, Nuh Massachusetts Institute of Technology. Department of Physics McIver, James Hsieh, David Drapcho, Steven G. Torchinsky, Darius Hosseinzadeh Gardner, Dillon Richard Lee, Young S. Gedik, Nuh We develop a theoretical model that describes the second harmonic generation of light from the surface of the topological insulator Bi[subscript 2]Se[subscript 3] and experimentally demonstrate that the technique is sensitive to the surface electrons. By performing a crystal symmetry analysis of Bi[subscript 2]Se[subscript 3](111) we determine the nonlinear electric susceptibility tensor elements that give rise to second harmonic generation. Using these results, we present a phenomenological model that shows that the relative magnitudes of these tensor elements can be determined by measuring the polarization and intensity of the radiated second harmonic light as a function of the in-plane crystal orientation and incident laser polarization. We describe optical techniques capable of isolating second harmonic light and, using these techniques, we measure the first-order linear optical and second-order nonlinear optical responses as a function of crystal orientation and laser polarization on bulk single crystals of Bi[subscript 2]Se[subscript 3](111). The experimental results are consistent with our theoretical description. By comparing the data to our theoretical model we determine that a portion of the measured second harmonic light originates from the accumulation region of Bi[subscript 2]Se[subscript 3](111), which we confirm by performing surface doping-dependent studies. Our results show that second harmonic generation is a promising tool for spectroscopic studies of topological surfaces and buried interfaces. United States. Dept. of Energy (DE-FG02- 08ER46521) 2012-10-10T20:05:22Z 2012-10-10T20:05:22Z 2012-07 2012-06 Article http://purl.org/eprint/type/JournalArticle 1098-0121 1550-235X http://hdl.handle.net/1721.1/73870 McIver, J. et al. “Theoretical and Experimental Study of Second Harmonic Generation from the Surface of the Topological Insulator Bi[subscript 2]Se[subscript 3].” Physical Review B 86.3 (2012). ©2012 American Physical Society 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 en_US http://dx.doi.org/10.1103/PhysRevB.86.035327 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 APS |
| spellingShingle | McIver, James Hsieh, David Drapcho, Steven G. Torchinsky, Darius Hosseinzadeh Gardner, Dillon Richard Lee, Young S. Gedik, Nuh Theoretical and experimental study of second harmonic generation from the surface of the topological insulator Bi[subscript 2]Se[subscript 3] |
| title | Theoretical and experimental study of second harmonic generation from the surface of the topological insulator Bi[subscript 2]Se[subscript 3] |
| title_full | Theoretical and experimental study of second harmonic generation from the surface of the topological insulator Bi[subscript 2]Se[subscript 3] |
| title_fullStr | Theoretical and experimental study of second harmonic generation from the surface of the topological insulator Bi[subscript 2]Se[subscript 3] |
| title_full_unstemmed | Theoretical and experimental study of second harmonic generation from the surface of the topological insulator Bi[subscript 2]Se[subscript 3] |
| title_short | Theoretical and experimental study of second harmonic generation from the surface of the topological insulator Bi[subscript 2]Se[subscript 3] |
| title_sort | theoretical and experimental study of second harmonic generation from the surface of the topological insulator bi subscript 2 se subscript 3 |
| url | http://hdl.handle.net/1721.1/73870 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 |
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