Heterodyne holographic microscopy of gold particles
Michael Atlan (LKB - Lhomond), Michel Gross (LKB - Lhomond), Pierre, Desbiolles (LKB - Lhomond), Emilie Absil (LPEM), Gilles Tessier (LPEM),, Mait\'e Coppey-Moisan (IJM)
TL;DR
This paper demonstrates a heterodyne holographic microscopy technique for 3D localization of subwavelength gold particles in water, utilizing green laser illumination and dark-field detection for high-resolution imaging.
Contribution
It introduces an experimental setup combining heterodyne holography with dark-field microscopy for precise 3D tracking of gold nanoparticles.
Findings
Successful 3D localization of gold particles in water
Effective use of heterodyne holography with CCD detection
Enhanced imaging resolution for subwavelength particles
Abstract
We report experimental results on heterodyne holographic microscopy of subwavelength-sized gold particles. The apparatus uses continuous green laser illumination of the metal beads in a total internal reflection configuration for dark-field operation. Detection of the scattered light at the illumination wavelength on a charge-coupled device array detector enables 3D localization of brownian particles in water
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