Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Vamara Dembele"'
Autor:
Daesuk Kim, Vamara Dembele, Sukhyun Choi, Gukhyeon Hwang, Saeid Kheiryzadehkhanghah, Inho Choi, Junbo Shim
Publikováno v:
Optical Technology and Measurement for Industrial Applications Conference 2022.
Autor:
Inho Choi, Vamara Dembele, Saeid Kheiryzadehkhanghah, Gukhyeon Hwang, Benjamin Charron, Jean-Francois Masson, Daesuk Kim
Publikováno v:
Applied optics. 61(26)
This paper describes a robust dynamic spectroscopic ellipsometer that can provide a highly accurate and reliable real-time spectroscopic polarization measurement capability for various in-line nanoscale measurement applications. The robustness of dyn
Autor:
Daesuk Kim, Vamara Dembele, Sukhyun Choi, Gukhyeon Hwang, Saeid Kheiryzadehkhanghah, Chulmin Joo, Robert Magnusson
Publikováno v:
Optics letters. 47(5)
A dynamic spectroscopic imaging ellipsometer (DSIE) employing a monolithic polarizing interferometer is described. The proposed DSIE system can provide spatio-spectral ellipsometric phase map data Δ(λ, x) dynamically at a speed of 30 Hz. We demonst
Publikováno v:
Digital Holography and 3-D Imaging 2022.
An interferometric technique that utilize a spatially quasi-incoherent light source to perform interferometric measurements involving diffusely scattering objects is presented. The proposed technique is demonstrated with settings that give a depth ga
Autor:
Daesuk Kim, Gukhyeon Hwang, Sukhyun Choi, Vamara Dembele, Saeid Kheiryzadehkhanghah, Inho Choi, Chung Song Kim
Publikováno v:
Optical Technology and Measurement for Industrial Applications Conference 2021.
This paper describes a new approach for large-scale thin film thickness mapping based on dynamic spectroscopic ellipsometry. The proposed system can provide a real time thin film uniformity measurement capability with high precision. We expect the pr
Publikováno v:
Applied Optics. 61:5806
The depth-gating capacity of a spatially quasi-incoherent imaging interferometer is investigated in relation to the 3D correlation properties of diffraction field laser speckles. The system exploits a phase-stepped imaging Michelson-type interferomet
Autor:
Vamara Dembele, Daesuk Kim
Publikováno v:
Optifab 2019.
We describe a novel dynamic spectroscopic ellipsometer and its advanced imaging spectro-ellipsometric scheme based on one-piece polarizing interferometric module. The proposed dynamic spectroscopic ellipsometer requires neither moving parts nor time
Publikováno v:
Applied Optics. 60:10867
A rapid direct spectroscopic ellipsometric parameter extraction algorithm for computational speed enhancement of dynamic spectroscopic ellipsometry is described. The proposed direct spectral phase calculation method can provide a faster spectral phas
Autor:
Vamara Dembele, Daesuk Kim
Publikováno v:
Quantitative Phase Imaging V.
We describe a novel snapshot imaging polarimeter based on off-axis digital holographic scheme. The proposed digital holographic imaging polarimeter is based on a compact interferometric module and it requires neither moving parts nor time dependent m
Publikováno v:
Scopus-Elsevier
We describe a new concept on compact and highly robust polarization imaging method with a numerical focusing capability. It is based on a specially designed interferometric polarization-modulation module. We can reconstruct a spatially resolved polar