Phase-controlled, heterodyne laser-induced transient grating measurements of thermal transport properties in opaque material
The methodology for a heterodyned laser-induced transient thermal grating technique for non-contact, non-destructive measurements of thermal transport in opaque material is presented. Phase-controlled heterodyne detection allows us to isolate pure phase or amplitude transient grating signal contribu...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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American Institute of Physics (AIP)
2013
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| Online Access: | http://hdl.handle.net/1721.1/79605 https://orcid.org/0000-0002-1891-1959 https://orcid.org/0000-0001-7804-5418 |
| _version_ | 1810987605880209408 |
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| author | Johnson, Jeremy A. Fitzgerald, Eugene A. Harman, T. C. Vineis, C. J. Maznev, Alexei Bulsara, Mayank Calawa, Stephen D. Turner, George W. Nelson, Keith Adam |
| author2 | MIT Materials Research Laboratory |
| author_facet | MIT Materials Research Laboratory Johnson, Jeremy A. Fitzgerald, Eugene A. Harman, T. C. Vineis, C. J. Maznev, Alexei Bulsara, Mayank Calawa, Stephen D. Turner, George W. Nelson, Keith Adam |
| author_sort | Johnson, Jeremy A. |
| collection | MIT |
| description | The methodology for a heterodyned laser-induced transient thermal grating technique for non-contact, non-destructive measurements of thermal transport in opaque material is presented. Phase-controlled heterodyne detection allows us to isolate pure phase or amplitude transient grating signal contributions by varying the relative phase between reference and probe beams. The phase grating signal includes components associated with both transient reflectivity and surface displacement whereas the amplitude grating contribution is governed by transient reflectivity alone. By analyzing the latter with the two-dimensional thermal diffusion model, we extract the in-plane thermal diffusivity of the sample. Measurements on a 5 μm thick single crystal PbTe film yielded excellent agreement with the model over a range of grating periods from 1.6 to 2.8 μm. The measured thermal diffusivity of 1.3 × 10[superscript −6] m[superscript 2]/s was found to be slightly lower than the bulk value. |
| first_indexed | 2024-09-23T11:52:47Z |
| format | Article |
| id | mit-1721.1/79605 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:52:47Z |
| publishDate | 2013 |
| publisher | American Institute of Physics (AIP) |
| record_format | dspace |
| spelling | mit-1721.1/796052022-10-01T06:38:58Z Phase-controlled, heterodyne laser-induced transient grating measurements of thermal transport properties in opaque material Johnson, Jeremy A. Fitzgerald, Eugene A. Harman, T. C. Vineis, C. J. Maznev, Alexei Bulsara, Mayank Calawa, Stephen D. Turner, George W. Nelson, Keith Adam MIT Materials Research Laboratory Lincoln Laboratory Massachusetts Institute of Technology. Department of Chemistry Massachusetts Institute of Technology. Department of Materials Science and Engineering Johnson, Jeremy A. Maznev, Alexei Bulsara, Mayank Fitzgerald, Eugene A. Harman, T. C. Calawa, Stephen D. Vineis, C. J. Turner, George W. Nelson, Keith Adam The methodology for a heterodyned laser-induced transient thermal grating technique for non-contact, non-destructive measurements of thermal transport in opaque material is presented. Phase-controlled heterodyne detection allows us to isolate pure phase or amplitude transient grating signal contributions by varying the relative phase between reference and probe beams. The phase grating signal includes components associated with both transient reflectivity and surface displacement whereas the amplitude grating contribution is governed by transient reflectivity alone. By analyzing the latter with the two-dimensional thermal diffusion model, we extract the in-plane thermal diffusivity of the sample. Measurements on a 5 μm thick single crystal PbTe film yielded excellent agreement with the model over a range of grating periods from 1.6 to 2.8 μm. The measured thermal diffusivity of 1.3 × 10[superscript −6] m[superscript 2]/s was found to be slightly lower than the bulk value. United States. Dept. of Energy. Office of Science (Office of Basic Energy Science) (Award DE-SC0001299) United States. Dept. of Energy. Office of Science (Office of Basic Energy Science) (Award DE-FG02-09ER46577) 2013-07-17T15:47:11Z 2013-07-17T15:47:11Z 2012-01 2011-10 Article http://purl.org/eprint/type/JournalArticle 00218979 1089-7550 http://hdl.handle.net/1721.1/79605 Johnson, Jeremy A., Alexei A. Maznev, Mayank T. Bulsara, Eugene A. Fitzgerald, T. C. Harman, S. Calawa, C. J. Vineis, G. Turner, and Keith A. Nelson. “Phase-controlled, heterodyne laser-induced transient grating measurements of thermal transport properties in opaque material.” Journal of Applied Physics 111, no. 2 (2012): 023503. © 2012 American Institute of Physics https://orcid.org/0000-0002-1891-1959 https://orcid.org/0000-0001-7804-5418 en_US http://dx.doi.org/10.1063/1.3675467 Journal of Applied Physics 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 Institute of Physics (AIP) MIT web domain |
| spellingShingle | Johnson, Jeremy A. Fitzgerald, Eugene A. Harman, T. C. Vineis, C. J. Maznev, Alexei Bulsara, Mayank Calawa, Stephen D. Turner, George W. Nelson, Keith Adam Phase-controlled, heterodyne laser-induced transient grating measurements of thermal transport properties in opaque material |
| title | Phase-controlled, heterodyne laser-induced transient grating measurements of thermal transport properties in opaque material |
| title_full | Phase-controlled, heterodyne laser-induced transient grating measurements of thermal transport properties in opaque material |
| title_fullStr | Phase-controlled, heterodyne laser-induced transient grating measurements of thermal transport properties in opaque material |
| title_full_unstemmed | Phase-controlled, heterodyne laser-induced transient grating measurements of thermal transport properties in opaque material |
| title_short | Phase-controlled, heterodyne laser-induced transient grating measurements of thermal transport properties in opaque material |
| title_sort | phase controlled heterodyne laser induced transient grating measurements of thermal transport properties in opaque material |
| url | http://hdl.handle.net/1721.1/79605 https://orcid.org/0000-0002-1891-1959 https://orcid.org/0000-0001-7804-5418 |
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