International Conference Presentations

[045] Sung Suk Oh, Yoon Beom Lee, Sanghyun Ahn, and Jong-ryul Choi, "A comparative study of T2-weighted and susceptibility-weighted imaging for brain damages in a photothrombotic ischemic stroke animal model," ICMRI 2023 (November 3 - November 4, 2023), Seoul, November 3, 2023.

[044] Sung Suk Oh, Yoon Bum Lee, Woori Jo, Sang-Hyun Ahn, and Jong-ryul Choi, "A preclinical confirmation of brain tissue damage occurrence through transcranial electrical stimulation by magnetic resonance and histological imaging," ICMRI 2022 (November 4 - November 5, 2022), Seoul, November 4, 2022.

[043] Taeyeon Kim, Byungsuk Lee, Heesang Ahn, Soojung Kim, Hyerin Song, Jong-ryul Choi, and Kyujung Kim, "A study of optical lithography using the Bull's eye mask with an immersion medium," SPIE Optics + Photonics 2022 (August 21 - August 25, 2022), San Diego, CA, United States, August 22, 2022.

[042] Yoon Beom Lee, Da-Sol Lee, Jong-ryul Choi, Sung Suk Oh, Na-Hye Park, Gwang Hoon Lee, Seonghwa Lee, Hye-yoon Choi, Tae Ku Kang, Kil Soo Kim, and Woori Jo, "Transcranial alternating current stimulation exerts symptom relieving effects in the brain of a rat transient MCAo model," 2022 KALAS International Symposium (July 20 - July 23, 2022), Jeju, July 21, 2022.

[041] Jong-ryul Choi, "Establishment of an ischemic stroke animal model and longitudinal analysis of photothrombotic cerebral lesion using magnetic resonance imaging," ICMRI 2021 (November 5 - November 6, 2021), Seoul, November 6, 2021.

[040] Sung Suk Oh, Yoon Bum Lee, Won Yong Park, Sanghyun Ahn, Jong-ryul Choi, "A preliminary study on safety evaluation of 10 Hz transcranial current stimulation for small animal using magnetic resonance imaging," ICMRI 2021 (November 5 - November 6, 2021), Seoul, November 5, 2021.

[039] Taeyeon Kim, Heesang Ahn, Hyerin Song, Jong-ryul Choi, and Kyujung Kim, "Comparative study of nano sized patterns fabricated by extraordinary optical transmission and talbot effect," SPIE Advanced Biophotonics Conference 2021 (November 4 - November 6, 2021), Busan, November 5, 2021.

[038] Hyerin Song, Heesang Ahn, Taeyeon Kim, Taerim Yoon, Soojung Kim, Jong-ryul Choi, and Kyujung Kim, "Scanning of localized fields on 3-type orientations of metallic antenna ," SPIE Advanced Biophotonics Conference 2021 (November 4 - November 6, 2021), Busan, November 5, 2021.

[037] Gwiyeong Moon, Jong-ryul Choi, Changhun Lee, Youngjin Oh, Kyunghwan Kim, and Donghyun Kim, "Machine learning improves the way to design meta-plasmonic biosensors," SPIE Photonics West 2021 (March 6 - March 11, 2021, Plasmonics in Biology and Medicine XVIII, Paper 11661-16), Digital Forum, March 6 - March 11, 2021.

[036] Taerim Yoon, Heesang Ahn, Taeyeon Kim, Jong-ryul Choi, and Kyujung Kim, "Investigation of a high-resolution optical inspection system for fabricated metallic nanostructures using structured illumination," SPIE Photonics West 2020 (February 1 - February 6, 2020, Multiscale Imaging and Spectroscopy, Paper 11216-27), San Francisco, CA, United States, February 2, 2020.

[035] Taeyeon Kim, Heesang Ahn, Hyerin Song, Jong-ryul Choi, and Kyujung Kim, "A comparative study of various structures fabricated by transmitted light and diffracted light with gap distance control," SPIE Optifab 2019 (October 14 - October 17), Riverside Convention Center, Rochester, United States, October 17, 2019.

[034] Sung Suk Oh, Sanghyun Ahn, and Jong-ryul Choi, "Transient measurements of brain damages in an ischemic infarction animal model in a rat by photo-thrombosis," ICMRI 2019 (March 28 - March 30), Grand Walkerhill Hotel, Seoul, Korea, March 29, 2019.

[033] Jong-ryul Choi, Hye Jin Park, Sung Suk Oh, Jun Sik Kim, Rae-Hyung Ryu, Sanghyun Ahn, Han Sol Min, Dan Bi Kim, Sang Hyun Kim, Seong-jun Lee, Bong Keun Kang, and Jeong-woo Sohn, "Preliminary study to find conditions for efficient generations of cerebral ischemic brain damages using optical thrombosis," 2018 Annual Meeting of Society for Neuroscience, San Diego, USA, November 4, 2018.

[032] Taeyeon Kim, Heesang Ahn, Hyerin Song, Jong-ryul Choi, and Kyujung Kim, "A fabrication of nanostructures with a transmission light and a plasmonic field at different z-axis position," 2018 Frontiers in Optics/Laser Science XXXIV (FiO/LS) (September 16-20, 2018), Washington, D. C., USA, September 19, 2018.

[031] Sung Suk Oh, Jong-ryul Choi, Hye Jin Park, Jun Sik Kim, Rae-Hyung Ryu, Sanghyun Ahn, Seong-jun Lee, Bong Keun Kang, and Jeong-woo Sohn, "Transient measurements of brain damages in an ischemic infarction animal model by photo-thrombosis," ICMRI 2018 (March 29 - March 31, 2018), Grand Hilton Hotel, Seoul, Korea, March 30, 2018.

[030] Yeji Lee, Hyerin Song, Heesang Ahn, Taelim Yoon, Jong-ryul Choi, and Kyujung Kim, "Extraordinary optical transmission sensor based on subwavelength hole array for detection of human serum albumin," SPIE Photonics West 2018 (January 27 - February 1, 2018, Plasmonics in Biology and Medicine XV, Paper 10509-22), San Francisco, CA, January 29, 2018.

[029] Taelim Yoon, Heesang Ahn, Taeyoung Kang, Jong-ryul Choi, and Kyujung Kim, "Plasmonics enhanced smartphone fluorescence microscopy with periodic gold nanohole arrays," SPIE Photonics West 2018 (January 27 - February 1, 2018, Optics and Biophotonics in Low-Resource Settings IV, Paper No. 10485-44), San Francisco, CA, January 28, 2018.

[028] Sung Suk Oh, Heejaung Kim, Huijin Joo, Woori Jo, Sung-jun Lee, Hee Young Lee, Jung Joo Rhyu, Jong-ryul Choi, and Jeong-woo Sohn, "Characteristics of atherosclerosis in T1 and T2 weighted images of rabbits," ICMRI 2017 (March 23-25, 2017), Grand Hilton Hotel, Seoul, Korea, March 24, 2017.

[027] Taelim Yoon, Heesang Ahn, Jong-ryul Choi, and Kyujung Kim, "Preliminary study in plasmonic enhancements of nanostructured substrates for high-sensitive albumin detection," SPIE Photonics West 2017 (January 28 - February 2, 2017, Plasmonics in Biology and Medicine XIV, Paper No. 10080-21), San Francisco, CA, January 31, 2017.

[026] Youngjin Oh, Jong-ryul Choi, Heesang Ahn, Hyerin Song, and Kyujung Kim, "Feasibility study of biosensors using nanostructured photonic lenses consisting of multiple nano-ring apertures," The 3rd International Conference & Exhibition for Nanopia (Nanopia 2016, November 17-18, 2016), CECO, Changwon, Korea, November 17, 2016.

[025] Heesang Ahn, Jong-ryul Choi, and Kyujung Kim, "A preliminary study of plasmonic enhanced sensors using nanostructured honeycombs arrays – a theoretical approach," Nano Korea 2016 (July 13-15, 2016), KINTEX, Goyang, Korea, July 14, 2016.

[024] Jong-ryul Choi, Hyerin Song, Seunghun Lee, and Kyujung Kim, "Internal surface plasmon polariton-based light coupling process in a metallic co-structure of double-layered nanoapertures and nanoscale pyramids," The 2nd International Conference & Exhibition for Nanopia (Nanopia 2015, November 12-13, 2015), CECO, Changwon, Korea, November 12, 2015.

[023] Wonju Lee, Kyujung Kim, Jong-ryul Choi, Youngjin Oh, and Donghyun Kim, "Extraordinary transmission-based axial imaging of live cells," JTu4A.42, JTu4A Poster session, Frontier in Optics/Laser Science (FiO/LS 2015, October 18-22, 2015), The Fairmont San Jose, San Jose, CA, USA, October 20, 2015.

[022] Youngjin Oh, Hyerin Song, Jong-ryul Choi, and Kyujung Kim, "Plasmonic enhancement in double layered metallic nanoapertures arrays," Nano Korea 2015 (July 1-3, 2015), COEX, Seoul, Korea, July 1, 2015.

[021] Wonju Lee, Youngjin Oh, Jong-ryul Choi, Kyujung Kim, Heejin Yang, and Donghyun Kim, "Super-resolved axial imaging of live cells using extraordinary light transmission-based nanoaperture arrays," W1A-1, T03: Biological/Biomedical Sensing and Imaging, The 5th Asia Pacific Optical Sensors Conference (APOS2015, May 20-22, 2015), Lotte City Hotel Jeju, Jeju, Korea, May 20, 2015.

[020] Hyerin Song, Jong-ryul Choi, Wonju Lee, Donghyun Kim, Dongyun Lee, and Kyujung Kim, "The gap-plasmonic effect induced on a silver nanoisland substrate for surface-enhanced Raman spectroscopy," Tracking #: NBS15-NB100-39, The 2nd SPIE’s International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy (NBSIS 2015), International Convention Center Jeju in Jeju Island, Korea, February 27, 2015.

[019] Wonju Lee, Jong-ryul Choi, Kyujung Kim, Youngjin Oh, Heejin Yang, and Donghyun Kim, "Sub-diffraction-limited axial imaging of live cells using linear nanoaperture arrays based on extraordinary transmission," Tracking #: NBS15-NB100-35, The 2nd SPIE’s International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy (NBSIS 2015), International Convention Center Jeju in Jeju Island, Korea, February 26, 2015.

[018] Wonju Lee, Jong-ryul Choi, Kyujung Kim, and Donghyun Kim, "Extraordinary transmission-based super-resolved axial imaging using subwavelength metallic nanoaperture arrays," SPIE Photonics West 2015 (7 - 12 February 2015, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XII, Paper No. 9337-9, San Francisco, CA, February 12, 2015.

[017] Wonju Lee, Jong-ryul Choi, Kyujung Kim, Youngjin Oh, and Donghyun Kim, "Extraordinary light transmission using metallic nanoholes for super-resolved axial imaging," International BioMedical Engineering Conference (IBEC 2014 jointly with uHealthcare 2014, November 20-22), OR_T1S2_25, Gwangju, Korea, November 21, 2014.

[016] Wonju Lee, Jong-ryul Choi, Kyujung Kim, Youngjin Oh, and Donghyun Kim, "Super-resolved axial imaging based on extraordinary light transmission using linear nanoaperture arrays," 2014 Frontiers in Optics/Laser Science Conference (19-23 October 2014 at the JW Marriott Tucson Starr Pass Resort), Paper ID number: 2013171, Abstract ID: FW4G.7, Tucson, Arizona, USA, October 22, 2014.

[015] Wonju Lee, T. Son, Jong-ryul Choi, Kyujung Kim, Youngjin Oh, and Donghyun Kim, "Plasmonics based localization microscopy: axially super-resolved intracellular imaging based on extraordinary light transmission," PIERS (Progress In Electromagnetics Research Symposium, 25-28 August) 2014, Guangzhou, China, 28 August, 2014.

[014] Youngjin Oh, Wonju Lee, Jong-ryul Choi, and Donghyun Kim, "Surface plasmon enhanced super-resolution microscopy using random nanoisland patterns," FTu5A.1, 2013 Frontiers in Optics/Laser Science XXIX (FiO/LS) meeting (6-10 October), Orlando, Florida, USA, October 8, 2013.

[013] Wonju Lee, Youngjin Oh, Jong-ryul Choi, Kyujung Kim, and Donghyun Kim, "Design and analysis of plasmonic nanoapertures for sub-diffraction-limited fluorescence imaging," SPIE Nano-Bio Sensing, Imaging, and Spectroscopy (M2313-NBS13, Jeju Island, Republic of Korea, February 20-23), February 22, 2013.

[012] Jong-ryul Choi and Donghyun Kim, "Fluorescence image detection and reconstruction by subtractive light illumination using a digital micromirror device," SPIE Photonics West 2013 (Emerging Digital Micromirror Device Based Systems and Applications V), Paper No. 8618-7, San Francisco, CA, February 5, 2013.

[011] Jong-ryul Choi, Taewoong Lee, and Donghyun Kim, "Total internal reflection fluorescence correlation spectroscopy with structured light illumination using a digital micromirror device," SPIE Photonics West 2013 (Single Molecule Spectroscopy and Superresolution Imaging VI), Paper No. 8590-41, San Francisco, CA, February 3, 2013.

[010] Jong-ryul Choi and Donghyun Kim, "Investigation of 3-D cell-based assays with structured illumination using a digital micromirror device," FM4D, Session Title: Microscopy and OCT II, 2012 Frontiers in Optics/Laser Science XXVIII (FiO/LS) (October 14-18, 2012), Rochester, New York, USA, October 15, 2012.

[009] Jong-ryul Choi, Youngjin Oh, and Donghyun Kim, "Design of multiple nano-ring based metallic nanophotonic superlens," SPIE Photonics West 2012 (Integrated Optics: Devices, Materials, and Technologies XVI), Paper No. 8264-46, San Francisco, CA, January 25, 2012. Also published in the Proceedings of SPIE Vol. 8264: Integrated Optics: Devices, Materials, and Technologies XVI, 82641A, March, 2012.

[008] Jong-ryul Choi, Kyujung Kim, and Donghyun Kim, "Investigation of in situ fluorescence optical detection based on a programmable spatial light modulator," SPIE Photonics West 2012 (Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues X), Paper No. 8225-58, San Francisco, CA, January 23, 2012.

[007] Jong-ryul Choi, Youngjin Oh, and Donghyun Kim, "A metallic nanophotonic lens based on multiple ring apertures for focused light transmission," SPP5, MP- 56, Bexco, Busan, Korea, May 16, 2011.

[006] Youngjin Oh, Jong-ryul Choi, and Donghyun Kim, "Enhanced light transmission through a metallic nanolens consisting of multiple nano-rings," Photonics West 2011 (Integrated Optics: Devices, Materials, and Technologies XV), Paper No. 7941-46, San Francisco, CA, USA, January 26, 2011.

[005] Jong-ryul Choi and Donghyun Kim, "Digital micromirror device (DMD) based confocal fluorescence detection of 3D cell cultures," Photonics West 2011 (Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XVIII), Paper No. 7904-60, San Francisco, CA, USA, January 24, 2011.

[004] Jong-ryul Choi, Jong Hwan Sung, Michael Louis Shuler, and Donghyun Kim, "Confocal fluorescence detection of cell-based assays using a digital micromirror device," Photonics West 2010, Paper No. 7596-7, San Francisco, CA, USA, January 27, 2010. Appeared in the Proceedings of SPIE Vol. 7596: Emerging Digital Micromirror Device Based Systems and Applications II, 759608, Febuary 10, 2010.

[003] Jong-ryul Choi, Jong Hwan Sung, Michael Louis Shuler, and Donghyun Kim, "Confocal fluorescence detection for 3D cultured mammalian cells in a microfluidic cell culture system," Photonics West 2010, Paper No. 7568-41, San Francisco, CA, USA, January 24, 2010. Appeared in the Proceedings of SPIE Vol. 7568: Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues VIII, 75680X, February 24, 2010.

[002] Jong-ryul Choi, Jong Hwan Sung, Michael Louis Shuler, and Donghyun Kim, "Fluorescence confocal detection system in situ for analyzing metabolism of 3D cultured cells in microfluidic device," Photonics West 2009, San Jose, CA, USA, January 27, 2009.

[001] Jong-ryul Choi, Jong Hwan Sung, Michael Louis Shuler, Taek-il Oh, and Donghyun Kim, "Parametric cell viability studies on microscale cell culture assays using portable optical fluorescence measurement in situ," Photonics West 2008, San Jose, CA, USA, January 21, 2008.