Photoinduced dynamics studied by ultrafast single-shot pump-probe spectroscopy
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
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| Other Authors: | |
| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2019
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| Online Access: | https://hdl.handle.net/1721.1/122684 |
| _version_ | 1826191312982900736 |
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| author | Cheng, Yu-Hsiang. |
| author2 | Keith A. Nelson. |
| author_facet | Keith A. Nelson. Cheng, Yu-Hsiang. |
| author_sort | Cheng, Yu-Hsiang. |
| collection | MIT |
| description | This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections. |
| first_indexed | 2024-09-23T08:53:57Z |
| format | Thesis |
| id | mit-1721.1/122684 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T08:53:57Z |
| publishDate | 2019 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1226842019-11-22T03:42:22Z Photoinduced dynamics studied by ultrafast single-shot pump-probe spectroscopy Cheng, Yu-Hsiang. Keith A. Nelson. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Electrical Engineering and Computer Science. This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections. Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2019 Cataloged from student-submitted PDF version of thesis. Includes bibliographical references (pages 155-168). This thesis focuses on the development of dual-echelon single-shot spectroscopy and its applications to study irreversible photoinduced dynamics. First, the ultrafast laser sources and the related control and characterization techniques are discussed. In particular, we have invented a two-stage dual-beam noncollinear optical parametric amplifier to provide tunable sources for pump-probe spectroscopy. Next, the experimental setup of dual-echelon single-shot spectroscopy is illustrated with great detail and possible noise sources and correction methods are explored. Using the single- shot technique, we studied photoinduced dynamics in three different materials. In bismuth, we found a transition into a transient symmetric phase at high fluences. We showed the coherent control of phonon parameters with pump-pump-probe experiments. We also simulated the carrier and phonon dynamics using a modified two-temperature model. In tellurium, we demonstrated that the amorphization of crystalline tellurium induced by femtosecond pulses is a thermal process. We also estimated the lattice temperature by the change in phonon frequency. In a strained manganite film, we observed a photoinduced persistent insulator-to-metal transition and showed the partial recovery of the generated metallic phase to the insulating phase. by Yu-Hsiang Cheng. Ph. D. Ph.D. Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science 2019-11-04T19:53:08Z 2019-11-04T19:53:08Z 2019 2019 Thesis https://hdl.handle.net/1721.1/122684 1124678221 eng MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission. http://dspace.mit.edu/handle/1721.1/7582 168 pages application/pdf Massachusetts Institute of Technology |
| spellingShingle | Electrical Engineering and Computer Science. Cheng, Yu-Hsiang. Photoinduced dynamics studied by ultrafast single-shot pump-probe spectroscopy |
| title | Photoinduced dynamics studied by ultrafast single-shot pump-probe spectroscopy |
| title_full | Photoinduced dynamics studied by ultrafast single-shot pump-probe spectroscopy |
| title_fullStr | Photoinduced dynamics studied by ultrafast single-shot pump-probe spectroscopy |
| title_full_unstemmed | Photoinduced dynamics studied by ultrafast single-shot pump-probe spectroscopy |
| title_short | Photoinduced dynamics studied by ultrafast single-shot pump-probe spectroscopy |
| title_sort | photoinduced dynamics studied by ultrafast single shot pump probe spectroscopy |
| topic | Electrical Engineering and Computer Science. |
| url | https://hdl.handle.net/1721.1/122684 |
| work_keys_str_mv | AT chengyuhsiang photoinduceddynamicsstudiedbyultrafastsingleshotpumpprobespectroscopy |