Qualitative and quantitative investigations of temperature distribution, heat flow, and heat transfer parameters from the heated objects using lensless Fourier transform …

V Kumar, C Shakher - Optics & Laser Technology, 2024 - Elsevier
In this article, lensless Fourier transform digital holographic interferometry (LLFTDHI) is
presented for the investigation of heat transfer parameters such as natural convective heat …

Radiometric temperature measurement by incoherent digital holography

M Imbe - Applied Optics, 2019 - opg.optica.org
This study aims to demonstrate radiometric temperature measurement using incoherent
digital holography. Since in-focus images of thermal radiations can be reconstructed at any …

Gear-like rotatable optical trap** with radial carpet beams

J Bayat, F Hajizadeh, AM Khazaei, S Rasouli - Scientific Reports, 2020 - nature.com
Optical tweezers have become a powerful tool in the fields of biology, soft condensed matter
physics, and nanotechnology. Here, we report the use of recently introduced radial carpet …

Microsphere-coupled optical tweezers

MH Khosravi, V Shahabadi, F Hajizadeh - Optics Letters, 2021 - opg.optica.org
In this Letter, we study the optical trap** of particles in a focal spot engineered by a
combination of a dielectric microsphere and the conventional optical tweezers setup. The …

Digital holographic microscopy implementation for capillary filling measurements in nanoporous materials

N Budini, M Sallese, LG Cencha, CLA Berli… - Applied Optics, 2022 - opg.optica.org
We report the implementation of lensless off-axis digital holographic microscopy as a non-
destructive optical analyzer for nano-scale structures. The measurement capacity of the …

Temperature distribution measurement in asymmetric geometry using perturbation theory based on an optical method

F Jafariani, EA Akhlaghi, MA Charsooghi - International Journal of Thermal …, 2019 - Elsevier
In this paper, we introduced a method to measure temperature field of an asymmetric
geometry using an optical method. A Mach-Zehnder interferometer assisted by …

Escape velocity sorting in optical tweezers system using a home-made piezo mirror

M Malekmohammadi, EA Akhlaghi, J Soltani… - Journal of …, 2020 - iopscience.iop.org
The flow of a fluid around an optically trapped particle forces the particle to move out of its
equilibrium position. The particle will escape the trap if the fluid velocity exceeds a certain …

3D particle tracking using transport of intensity equation (TIE)

N Rezaei, M Aakhte, M Charsooghi, H Borzouei… - Optics …, 2022 - opg.optica.org
This article presents a simple and high-speed approach for tracking colloidal spheres in
three dimensions. The method uses the curvature of the wavefront as determined by the …

Optimisation thermique de nanostructures plasmoniques: conception, modélisation et caractérisation

A Lalisse - 2017 - theses.hal.science
Un des défis majeurs auquel la communauté de la nano-optique aura à répondre dans les
années à venir sera de concentrer l'énergie lumineuse à l'échelle du nanomètre de façon à …