Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Sungsam Kang"'
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-12 (2023)
Abstract Multiple light scattering hampers imaging objects in complex scattering media. Approaches used in real practices mainly aim to filter out multiple scattering obscuring the ballistic waves that travel straight through the scattering medium. H
Externí odkaz:
https://doaj.org/article/5da2452226c2446f822dbfa582990b38
Autor:
Sungsam Kang, Renjie Zhou, Marten Brelen, Heather K. Mak, Yuechuan Lin, Peter T. C. So, Zahid Yaqoob
Publikováno v:
Light: Science & Applications, Vol 12, Iss 1, Pp 1-9 (2023)
Abstract Resolving three-dimensional morphological features in thick specimens remains a significant challenge for label-free imaging. We report a new speckle diffraction tomography (SDT) approach that can image thick biological specimens with ~500 n
Externí odkaz:
https://doaj.org/article/aec2abc0017c4fa5aa838fde4a921c8f
Publikováno v:
IBRO Neuroscience Reports, Vol 15, Iss , Pp S100- (2023)
Externí odkaz:
https://doaj.org/article/9813093074ec45788b7f949cc860253a
Autor:
Yongwoo Kwon, Jin Hee Hong, Sungsam Kang, Hojun Lee, Yonghyeon Jo, Ki Hean Kim, Seokchan Yoon, Wonshik Choi
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
The authors realize longitudinal deep-brain imaging through an intact mouse skull by constructing a high-speed reflection matrix microscope at 1.3 µm wavelength and developing a computational conjugate adaptive optics algorithm eliminating skull abe
Externí odkaz:
https://doaj.org/article/379ba7ba16d845d9864032a255b064b7
Publikováno v:
Light: Science & Applications, Vol 11, Iss 1, Pp 1-13 (2022)
Compressed time-reversal matrix microscopy was developed for high-throughput volumetric adaptive optical imaging, enabling aberration-free visualization of myelinated axons in a mouse brain with high volumetric resolution.
Externí odkaz:
https://doaj.org/article/fcb26019b4894bc8bda3799e674f3237
Autor:
Moonseok Kim, Yonghyeon Jo, Jin Hee Hong, Suhyun Kim, Seokchan Yoon, Kyung-Deok Song, Sungsam Kang, Byunghak Lee, Guang Hoon Kim, Hae-Chul Park, Wonshik Choi
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
A major challenge of in vivo imaging is imaging deeper, including in turbid tissue. The authors report an adaptive optics based microscope that uses coherent single scattering signal to reduce sample-induced aberrations and enable fast deep-tissue im
Externí odkaz:
https://doaj.org/article/c3eab64dc55e4140830dd24ebc7cf2f2
Autor:
Sungsam Kang, Pilsung Kang, Seungwon Jeong, Yongwoo Kwon, Taeseok D. Yang, Jin Hee Hong, Moonseok Kim, Kyung–Deok Song, Jin Hyoung Park, Jun Ho Lee, Myoung Joon Kim, Ki Hean Kim, Wonshik Choi
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-10 (2017)
Optical imaging deep in biological tissue is difficult due to multiple scattering and specimen induced aberrations of both the incident and reflected light. Here, Kang et al. develop an adaptive closed-loop algorithm to correct tissue aberrations in
Externí odkaz:
https://doaj.org/article/3a5b559cf4be4378a7033e4dac93edd0
Autor:
Junwoo Kim, Keumhyun Kim, Dowon Lee, Yongha Shin, Sungsam Kang, Jung-Ryul Kim, Youngwoon Choi, Kyungwon An, Moonjoo Lee
Publikováno v:
Sensors, Vol 21, Iss 18, p 6255 (2021)
We herein report a simultaneous frequency stabilization of two 780-nm external cavity diode lasers using a precision wavelength meter (WLM). The laser lock performance is characterized by the Allan deviation measurement in which we find σy=10−12 a
Externí odkaz:
https://doaj.org/article/f59b2d108a4b4184a70526e99aed457d
Publikováno v:
Optica. 10:569
Shaping the wavefront of an incident wave to a complex scattering medium has demonstrated interesting possibilities, such as sub-diffraction wave focusing and light energy delivery enhancement. However, wavefront shaping has mainly been based on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d102cc071ac3b78a0b1a762de58d53fe
https://doi.org/10.1364/optica.480154
https://doi.org/10.1364/optica.480154
Autor:
Yongwoo Kwon, Jin Hee Hong, Sungsam Kang, Hojun Lee, Yonghyeon Jo, Ki Hean Kim, Seokchan Yoon, Wonshik Choi
Publikováno v:
Nature communications. 14(1)
Myelination processes are closely related to higher brain functions such as learning and memory. While their longitudinal observation has been crucial to understanding myelin-related physiology and various brain disorders, skull opening or thinning h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cba0c4145b9772e50e0bb93c506388c9
https://pubmed.ncbi.nlm.nih.gov/36609405
https://pubmed.ncbi.nlm.nih.gov/36609405