37 citations · 76 across the 19 of their papers we have counts for
20 papers
Nondestructive 3D Quantification of the Magnitude and Extent of Indentation-Induced Densification in Glass
Sang-min Lee, Dohyeon Lee, Juheon Lee +2
Vickers hardness characterizes resistance to indentation but does not distinguish the magnitude of local densification from the volume of glass affected. Here, low-coherence holoto…
Programmable spatial coherence tomography: diffraction-limited three-dimensional reflection imaging under modulated monochromatic illumination
Herve Hugonnet, Jieun Choi, Gyoung Hwan Kim +9
Depth sectioning in reflection microscopy has predominantly relied on temporal coherence gating. Here we show that volumetric reflection tomography at diffraction-limited resolutio…
Video-rate holographic telepresence via single-shot, reference-free wavefront measurement
Minwook Kim, Chansuk Park, Chulmin Oh +3
We present a reference-free holographic telepresence system that directly captures and replays complex optical wavefronts from a single intensity speckle measurement. Using a pre-c…
Quantitative three-dimensional absorption imaging in standard brightfield microscopes
Yoonjae Chung, Sehyun Lee, Herve Hugonnet +5
Optical absorption is a primary, label-defining contrast across biology, pathology, and materials science, yet three-dimensional quantitative absorption imaging has remained largel…
Incoherent dielectric tensor tomography for quantitative 3D measurement of biaxial anisotropy
Juheon Lee, Yeon Wook Kim, Hwanseok Chang +4
Biaxial anisotropy, arising from distinct optical responses along three principal directions, underlies the complex structure of many crystalline, polymeric, and biological materia…
Pupil Phase Series: A Fast, Accurate, and Energy-Conserving Model for Forward and Inverse Light Scattering in Thick Biological Samples
Herve Hugonnet, Chulmin Oh, Juyeon Park +1
We present the pupil phase series (PPS), a fast and accurate forward scattering algorithm for simulating and inverting multiple light scattering in large biological samples. PPS ac…
Generalized reciprocal diffractive imaging for stand-alone, reference-free, fast-measurable quantitative phase microscopy
Jeonghun Oh, Herve Hugonnet, Weisun Park +1
Optical microscopy has been employed to derive salient characteristics of an object in various fields, including cell biology, flow cytometry, biopsy, and neuroscience. In particul…
Speckle-based X-ray microtomography via preconditioned Wirtinger flow
KyeoReh Lee, Herve Hugonnet, Jae-Hong Lim +1
Quantitative phase imaging has been extensively studied in X-ray microtomography to improve the sensitivity and specificity of measurements, especially for low atomic number materi…
Digital cytometry: extraction of forward and side scattering signals from holotomography
Jaepil Jo, Herve Hugonnet, Mahn Jae Lee +1
Flow cytometry is a cornerstone technique in medical and biological research, providing crucial information about cell size and granularity through forward scatter (FSC) and side s…
Rytov Approximation of Vectorial Waves by Modifying Scattering Matrixes: Precise Reconstruction of Dielectric Tensor Tomography
ChulMin Oh, Herve Hugonnet, Juheon Lee +1
Analyzing 3D anisotropic materials presents significant challenges, especially when assessing 3D orientations, material distributions, and anisotropies through scattered light, due…
High-precision and low-noise dielectric tensor tomography using a micro-electromechanical system mirror
Juheon Lee, Byung Gyu Chae, Hyuneui Kim +3
Dielectric tensor tomography is an imaging technique for mapping three-dimensional distributions of dielectric properties in transparent materials. This work introduces an enhanced…
Improving specificity and axial spatial resolution of refractive index imaging by exploiting uncorrelated subcellular dynamics
Herve Hugonnet, HyunJun Han, Weisun Park +1
Holotomography, a three-dimensional quantitative phase imaging technique, presents an innovative, non-invasive approach to studying biological samples by exploiting the refractive…
Single-shot refractive index slice imaging using spectrally multiplexed optical transfer function reshaping
Chungha Lee, Herve Hugonnet, Juyeon Park +3
The refractive index (RI) of cells and tissues is crucial in pathophysiology as a noninvasive and quantitative imaging contrast. Although its measurements have been demonstrated us…
Dielectric-tensor reconstruction of highly scattering birefringent samples
Herve Hugonnet, Moosung Lee, Seungwoo Shin +1
Many important microscopy samples, such as liquid crystals, biological tissue, or starches, are birefringent in nature. They scatter light differently depending on the light polari…
Regularization of dielectric tensor tomography using total variation
Herve Hugonnet, Seungwoo Shin, Yongkeun Park
Dielectric tensor tomography reconstructs the three-dimensional dielectric tensors of microscopic objects and provides information about the crystalline structure orientations and…
Spatially multiplexed dielectric tensor tomography
Juheon Lee, Seungwoo Shin, Herve Hugonnet +1
Dielectric tensor tomography (DTT) enables the reconstruction of three-dimensional (3D) dielectric tensors, which provides a physical measure of 3D optical anisotropy. Herein, we p…
Quantitative phase imaging via the holomorphic property of complex optical fields
Jeonghun Oh, Herve Hugonnet, YongKeun Park
An optical field is described by the amplitude and phase, and thus has a complex representation described in the complex plane. However, because the only thing we can measure is th…
Quantitative phase and refractive index imaging of 3D objects via optical transfer function reshaping
Herve Hugonnet, Mahn Jae Lee, Yongkeun Park
Deconvolution phase microscopy enables high-contrast visualization of transparent samples through reconstructions of their transmitted phases or refractive indexes. Herein, we prop…
Single-shot wide-field topography measurement using spectrally multiplexed reflection intensity holography via space-domain Kramers-Kronig relations
Chungha Lee, Yoonseok Baek, Herve Hugonnet +1
Surface topology measurements of micro- or nanostructures is essential for both scientific and industrial applications. However, high-throughput measurements remain challenging in…
Inverse problem solver for multiple light scattering using modified Born series
Moosung Lee, Herve Hugonnet, YongKeun Park
The inverse scattering problem, whose goal is to reconstruct an unknown scattering object from its scattered wave, is essential in fundamental wave physics and its wide application…