Near-field measurement of spectral anisotropy and optical absorption of isolated ZnO nanorod single-quantum-well structures
SCIE
SCOPUS
- Title
- Near-field measurement of spectral anisotropy and optical absorption of isolated ZnO nanorod single-quantum-well structures
- Authors
- Yatsui, T; Ohtsu, M; Yoo, J; An, SJ; Yi, GC
- Date Issued
- 2005-07-18
- Publisher
- AMER INST PHYSICS
- Abstract
- We report low-temperature near-field spectroscopy of isolated ZnO/ZnMgO single-quantum-well structures (SQWs) on the end of ZnO nanorod to define their potential for nanophotonics. First, absorption spectra of isolated ZnO/ZnMgO nanorod SQWs with the Stokes shift as small as 3 meV and very sharp photoluminescent peaks indicate that the nanorod SQWs are of very high optical quality. Furthermore, we performed polarization spectroscopy of isolated ZnO SQWs, and observed valence-band anisotropy of ZnO SQWs in photoluminescence spectra directly. Since the exciton in a quantum structure is an ideal two-level system with long coherence times, our results provide criteria for designing nanophotonic devices. (c) 2005 American Institute of Physics.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/9494
- DOI
- 10.1063/1.1990247
- ISSN
- 0003-6951
- Article Type
- Article
- Citation
- APPLIED PHYSICS LETTERS, vol. 87, no. 3, 2005-07-18
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