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Proceedings Paper

High-resolution temporal and spatial photoluminescence measurement of a multiple-quantum-well structure at room temperature
Author(s): Honggyu Ahn; Jaehyuk Kim; Dae-Kyu Kim; Eungjang Lee; Dong-Soo Shin; Hyeonjin Doh; Seung-Han Park
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Paper Abstract

We demonstrate an experimental setup combining the near-field scanning optical microscope (NSOM) and timecorrelated single photon counting (TCSPC) system for high-resolution temporal and spatial spectroscopic measurements. In particular, a multiple-quantum-well (MQW) structure was excited with a tapered optical fiber with 100 nm opening aperture in near-field region and their temporal photoluminescence spectra were obtained by TCSPC system. We are able to measure fluorescence decay time of a GaAs/AlGaAs MQW structure with well width of 75Å in the near-field region at room temperature.

Paper Details

Date Published: 6 February 2009
PDF: 8 pages
Proc. SPIE 7214, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII, 721403 (6 February 2009); doi: 10.1117/12.809966
Show Author Affiliations
Honggyu Ahn, Yonsei Univ. (Korea, Republic of)
Jaehyuk Kim, Yonsei Univ. (Korea, Republic of)
Dae-Kyu Kim, Yonsei Univ. (Korea, Republic of)
Eungjang Lee, Yonsei Univ. (Korea, Republic of)
Dong-Soo Shin, Hanyang Univ. (Korea, Republic of)
Hyeonjin Doh, Yonsei Univ. (Korea, Republic of)
Seung-Han Park, Yonsei Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 7214:
Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII
Kong-Thon Tsen; Jin-Joo Song; Markus Betz; Abdulhakem Y. Elezzabi, Editor(s)

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