Digital holography based submicron thermometry

Here we introduce a phase-shifting digital holography-based method to determine the temperature profile around an irradiated (sub-)micron spherical bead. The method utilizes a Mach-Zehnder interferometer implemented into an open setup microscope. The results of irradiated gold spheres with diameter...

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Bibliographic Details
Published in:Optics express 2016-12, Vol.24 (25), p.28678-28685
Main Authors: Moradi, Amin, Akhlaghi, Ehsan A, Hajizedeh, Faegheh, Reihani, S Nader S
Format: Article
Language:English
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Summary:Here we introduce a phase-shifting digital holography-based method to determine the temperature profile around an irradiated (sub-)micron spherical bead. The method utilizes a Mach-Zehnder interferometer implemented into an open setup microscope. The results of irradiated gold spheres with diameter of 400 nm and also silver-coated micron-sized silica beads embedded in silicone oil are presented. We show that the applied method is able to accurately determine the surface temperature with accuracy of 1 °C. Our experimental results perfectly confirm the theoretical prediction of temperature profile around the irradiated bead.
ISSN:1094-4087
1094-4087
DOI:10.1364/oe.24.028678