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Proceedings Paper

Harmonic holographic microscopy with circularly polarized excitation
Author(s): Chia-Lung Hsieh; Rachel Grange; Ye Pu; Demetri Psaltis
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Paper Abstract

We have developed a luminescent marker using the second harmonic generation (SHG) from noncentrosymmetric BaTiO3 nanocrystals. These nanoparticles are attractive due to their stable, non-saturating and coherent signal with a femtosecond-scale response time and broad flexibility in the choice of excitation wavelength. In this paper, we report the SHG response of BaTiO3 nanocrystals under a circularly polarized excitation. We observed a more uniform SHG signal intensity from nanocrystals of different crystal orientations under a circularly polarized excitation. The threedimensional (3D) SHG fields generated from the SHRIMPs were recorded by a harmonic holographic microscope. Submicron resolution in both lateral and axial directions has been achieved. We show that the circularly polarized excitation is useful for harmonic holographic microscopy.

Paper Details

Date Published: 1 July 2009
PDF: 6 pages
Proc. SPIE 7367, Advanced Microscopy Techniques, 73670R (1 July 2009); doi: 10.1117/12.831506
Show Author Affiliations
Chia-Lung Hsieh, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
California Institute of Technology (United States)
Rachel Grange, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Ye Pu, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
California Institute of Technology (United States)
Demetri Psaltis, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
California Institute of Technology (United States)


Published in SPIE Proceedings Vol. 7367:
Advanced Microscopy Techniques
Paul J. Campagnola; Ernst H. K. Stelzer; Gert von Bally, Editor(s)

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