Open AccessDigital holography based submicron thermometry
Author(s) -
Amin Moradi,
Ehsan Ahadi Akhlaghi,
Faegheh Hajizedeh,
S. Nader S. Reihani
Publication year - 2016
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.028678
Subject(s) - materials science , optics , digital holography , holography , interferometry , bead , holographic interferometry , irradiation , digital holographic microscopy , phase (matter) , composite material , chemistry , physics , organic chemistry , nuclear physics
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.