223 citations · 880 across the 17 of their papers we have counts for
19 papers
Super-resolution three-dimensional fluorescence and optical diffraction tomography of live cells using structured illumination generated by a digital micromirror device
Seungwoo Shin, Doyeon Kim, Kyoohyun Kim +1
We present a multimodal approach for measuring the three-dimensional (3D) refractive index (RI) and fluorescence distributions of live cells by combining optical diffraction tomogr…
Time-multiplexed structured illumination using a DMD for optical diffraction tomography
Kyeoreh Lee, Kyoohyun Kim, Geon Kim +2
We present a novel illumination control technique for optical diffraction tomography (ODT). Various spatial frequencies of beam illumination were controlled by displaying time-aver…
Three-dimensional label-free imaging and quantification of lipid droplets in live hepatocytes
Kyoohyun Kim, SeoEun Lee, Jonghee Yoon +3
Lipid droplets (LDs) are subcellular organelles with important roles in lipid storage and metabolism and involved in various diseases including cancer, obesity, and diabetes. Conve…
Tomographic active optical trapping of arbitrarily shaped objects by exploiting 3-D refractive index maps
Kyoohyun Kim, YongKeun Park
Optical trapping can be used to manipulate the three-dimensional (3-D) motion of spherical particles based on the simple prediction of optical forces and the responding motion of s…
The effects of spatiotemporal coherence on interferometric imaging
Seungwoo Shin, Kyoohyun Kim, KyeoReh Lee +2
Illumination coherence plays a major role in various imaging systems, from microscopy, metrology, digital holography, optical coherence tomography, to ultrasound imaging. Here, we…
Holographic intravital microscopy for 2-D and 3-D imaging intact circulating blood cells in microcapillaries of live mice
Kyoohyun Kim, Kibaek Choe, Inwon Park +2
Intravital microscopy is an essential tool that reveals behaviours of live cells under conditions close to natural physiological states. So far, although various approaches for ima…
Optical characterization of red blood cells from individuals with sickle cell trait and disease in Tanzania using quantitative phase imaging
JaeHwang Jung, Lucas E. Matemba, KyeoReh Lee +6
Sickle cell disease (SCD) is common across Sub-Saharan Africa. However, the investigation of SCD in this area has been significantly limited mainly due to the lack of research faci…
White-light Quantitative Phase Imaging Unit
YoonSeok Baek, KyeoReh Lee, Jonghee Yoon +2
We introduce the white light quantitative phase imaging unit (WQPIU) as a practical realization of quantitative phase imaging (QPI) on standard microscope platforms. The WQPIU is a…
Single-shot optical imaging through scattering medium using digital in-line holography
Vinu R., Kyoohyun Kim, Atul S. Somkuwar +2
Non-invasive and single-shot holographic imaging through complex media is technically challenging due to random light scattering which significantly scrambles optical information.…
Label-free optical quantification of structural alterations in Alzheimer's disease
Moosung Lee, Eeksung Lee, JaeHwang Jung +5
We present a quantitative label-free imaging of mouse whole brain tissue slices with sub-micrometre resolution, employing holographic microscopy and an automated scanning platform.…
Optical diffraction tomography techniques for the study of cell pathophysiology
Kyoohyun Kim, Jonghee Yoon, Seungwoo Shin +3
Three-dimensional imaging of biological cells is crucial for the investigation of cell biology, provide valuable information to reveal the mechanisms behind pathophysiology of cell…
Optical diffraction tomography using a digital micromirror device for stable measurements of 4-D refractive index tomography of cells
Seungwoo Shin, Kyoohyun Kim, Taeho Kim +4
Optical diffraction tomography (ODT) is an interferometric microscopy technique capable of measuring 3-D refractive index (RI) distribution of transparent samples. Multiple 2-D hol…
Large-scale optical diffraction tomography for inspection of optical plastic lenses
Kyoohyun Kim, Jonghee Yoon, YongKeun Park
Herein is presented an optical diffraction tomography (ODT) technique for measuring 3-D refractive index (RI) maps of optical plastic lenses. A Mach-Zehnder interferometer was used…
Hyperspectral optical diffraction tomography
JaeHwang Jung, Kyoohyun Kim, Jonghee Yoon +1
Here, we present a novel microscopic technique for measuring wavelength-dependent three-dimensional (3-D) distributions of the refractive indices (RIs) of microscopic samples in th…
Alterations in cell surface area and deformability of individual human red blood cells in stored blood
HyunJoo Park, Misook Ji, SangYun Lee +4
The functionality and viability of stored human red blood cells (RBCs) is an important clinical issue in transfusion. To systematically investigate changes in stored whole blood, t…
Active illumination using a digital micromirror device for quantitative phase imaging
Seungwoo Shin, Kyoohyun Kim, Jonghee Yoon +1
We present a powerful and cost-effective method for active illumination using a digital micromirror device (DMD) for quantitative phase imaging techniques. Displaying binary illumi…
3-D refractive index tomograms and deformability of individual human red blood cells from cord blood of newborn infants and maternal blood
HyunJoo Park, Taegyu Ahnb, Kyoohyun Kim +6
Red blood cells (RBCs) from the cord blood of newborn infants have distinctive functions for fetal and infant development. To systematically investigate the biophysical characteris…
Quantitative Morphological and Biochemical Studies on Human Downy Hairs using 3-D Quantitative Phase Imaging
SangYun Lee, Kyoohyun Kim, Yuhyun Lee +6
This study presents the morphological and biochemical findings on human downy arm hairs using 3-D quantitative phase imaging techniques. 3-D refractive index tomograms and high-res…
Label-free characterization of white blood cells by measuring 3D refractive index maps
Jonghee Yoon, Kyoohyun Kim, HyunJoo Park +3
The characterization of white blood cells (WBCs) is crucial for blood analyses and disease diagnoses. However, current standard techniques rely on cell labeling, a process which im…