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Proceedings Paper

Potential of near- and far-field techniques for the detection of nanoemitters on laser-illuminated surface
Author(s): Gleb S. Zhdanov
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Paper Abstract

A simple technique for density determination of nm-sized light-emitting areas on a flat surface such as those produced by quantum dots is proposed. The method is based on the measurements of luminescence intensity fluctuations at the center of inhomogeneously broadened spectral band from a sample illuminated through a series of mask with apertures in the 0.1-1 micrometers range. The fluctuation amplitudes depend crucially on the number of emitters involved. As shown by simulation the latter may be established with better than 100 percent accuracy as well as the averaged surface density. With aperture diameter as small as approximately 0,2 (lambda) in-depth discrimination of QDs in the aperture near-field is possible.

Paper Details

Date Published: 26 June 2001
PDF: 7 pages
Proc. SPIE 4423, Nonresonant Laser-Matter Interaction (NLMI-10), (26 June 2001); doi: 10.1117/12.431215
Show Author Affiliations
Gleb S. Zhdanov, S.I. Vavilov State Optical Institute (Russia)

Published in SPIE Proceedings Vol. 4423:
Nonresonant Laser-Matter Interaction (NLMI-10)
Mikhail N. Libenson, Editor(s)

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