Multi-incidence digital holographic profilometry with high axial resolution and enlarged measurement range

J Martinez-Carranza, M Mikuła-Zdańkowska… - Optics …, 2020 - opg.optica.org
In this work, multi-incident digital holographic profilometry for microscale measurements is
presented. This technique assembles the set of object fields from captured holograms for …

Single-shot digital multiplexed holography for the measurement of deep shapes

T Kozacki, M Mikuła-Zdańkowska… - Optics …, 2021 - opg.optica.org
This work develops a single-shot holographic profilometer that enables shape
characterization of discontinuous deep surfaces. This is achieved by combining hologram …

Multi-incidence holographic profilometry for large gradient surfaces with sub-micron focusing accuracy

MS Idicula, T Kozacki, M Józwik, P Mitura… - Sensors, 2021 - mdpi.com
Surface reconstruction for micro-samples with large discontinuities using digital holography
is a challenge. To overcome this problem, multi-incidence digital holographic profilometry …

Low-coherence optical profilometry with multi-reflection reference mirrors for large-depth object measurement

QD Pham, Y Hayasaki - Applied Optics, 2023 - opg.optica.org
A new, to the best of our knowledge, optical configuration for digital holographic profilometry
for surface profile measurement of large-depth objects is proposed. Two multi-reflection …

Dual-wavelength off-axis digital holography using a single light-emitting diode

J Cho, J Lim, S Jeon, GJ Choi, H Moon, NC Park… - Optics …, 2018 - opg.optica.org
We propose a new low-coherence interferometry system for dual-wavelength off-axis digital
holography. By utilizing diffraction gratings, two beams with narrower bandwidths and …

Spherical wave illumination scanning digital holographic profilometry

K Wen, MS Idicula, M Józwik, HG Choo, P Gao… - Optics …, 2024 - opg.optica.org
In this work, we proposed what we believe to be a novel scanning solution for the
assessment of high-NA samples, referred to as spherical-wave illumination scanning digital …

Optical thickness measurement with single-shot dual-wavelength in-line digital holography

J Min, M Zhou, X Yuan, K Wen, X Yu, T Peng, B Yao - Optics Letters, 2018 - opg.optica.org
An algorithm for quantitative reconstruction of the optical thickness distribution of objects is
proposed based on single-shot dual-wavelength in-line digital holography. Two single …

Digital holographic profilometry with spherical-wave illumination scanning

MS Idicula, K Wen, M Józwik, HG Choo, P Gao… - Laser …, 2023 - opg.optica.org
Digital holographic profilometry with spherical-wave illumination scanning Page 1 Digital
holographic profilometry with spherical-wave illumination scanning Moncy Sajeev Idicula1, Kai …

Extending the depth of field beyond geometrical imaging limitations using phase noise as a focus measure in multiwavelength digital holography

T Seyler, M Fratz, T Beckmann, A Schiller, A Bertz… - Applied Sciences, 2018 - mdpi.com
Featured Application Multiwavelength digital holography on objects beyond the
unambiguous measurement range. Abstract Digital holography is a well-established …

Novel industry ready sensors for shape measurement based on multi wavelength digital holography

M Fratz, D Carl - Fringe 2013: 7th International Workshop on Advanced …, 2014 - Springer
Introduction The advance of industrial manufacturing processes of high-precision
components with fast production cycles poses great challenges for modern measurement …