title: Digital holography based submicron thermometry.
abstract: 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.
authors.forename: Amin
authors.initials: A
authors.lastname: Moradi
authors.forename: Ehsan A
authors.initials: EA
authors.lastname: Akhlaghi
authors.forename: Faegheh
authors.initials: F
authors.lastname: Hajizedeh
authors.forename: S Nader S
authors.initials: SN
authors.lastname: Reihani