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- Kim, Dai-Sik
- Nano Optics Group
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Coherent phonons, nanoseismology and THz radiation in InGaN/GaN heterostructures
- Author(s)
- Stanton, CJ, Sanders, GD, Liu, R, Chern, GW, Sun, CK, Yahng, JS, Jho, YD, Sohn, JY, Oh, E, Kim, DS
- Issued Date
- 2003-09
- Citation
- SUPERLATTICES AND MICROSTRUCTURES, v.34, no.3-6, pp.525 - 529
- Abstract
- The ultrafast optical photoexcitation of hot electrons and holes in semiconductors by femtosecond laser pulses can trigger coherent phonon oscillations. We discuss the huge coherent acoustic phonons which have been generated in InGaN/GaN heterostructures and epilayers and how they might be used in imaging of surfaces and interfaces in nanostructures. We also discuss the THz radiation emitted from these phonons.
- Publisher
- ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD
- ISSN
- 0749-6036
- Keyword (Author)
- coherent phonons, THz radiation, nanoseismology
- Keyword
- OSCILLATIONS
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