6 February 2009 High-resolution temporal and spatial photoluminescence measurement of a multiple-quantum-well structure at room temperature
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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.
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Honggyu Ahn, Honggyu Ahn, Jaehyuk Kim, Jaehyuk Kim, Dae-Kyu Kim, Dae-Kyu Kim, Eungjang Lee, Eungjang Lee, Dong-Soo Shin, Dong-Soo Shin, Hyeonjin Doh, Hyeonjin Doh, Seung-Han Park, Seung-Han Park, } "High-resolution temporal and spatial photoluminescence measurement of a multiple-quantum-well structure at room temperature", Proc. SPIE 7214, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII, 721403 (6 February 2009); doi: 10.1117/12.809966; https://doi.org/10.1117/12.809966
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