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Photonic Devices and Systems, Nano/micro Fabrication and Processing, 3D Photonic Integration/Packaging, Integrated Microfluidics, Integrated THz Microsystems, and Neuroprosthetic Interface for Sensing and Actuation.

• Sang-Woo Seo, Jonathan Martinez, Eliezer Galang, and Anthony Reyes, “Optical ultrasound imaging using a line-scanned transducer,”  Microwave and Optical Technology Letters, vol. 59, no. 4, pp. 770-773, 2017.
• Rubén Darío Velásquez Ríos, Siméon Bikorimana, Roger Dorsinville and Sang-Woo Seo, “Terahertz-wave Characterization of LTG-GaAs Thin-film Photoconductive Antenna,”  Journal of Selected Topic in Quantum Mechanics, vol. 23, no 4, 8500708, 2017.
• Ritesh Ray Chaudhuri, Eliezer Galang, and Sang-Woo Seo, “Thin-film optical grating transfer process using surface modulated film delamination,”  Photonics Technology Letters, vol. 29, no 13, pp. 1089-1092, 2017.
• J. Xiao, R. R. Chaudhuri and S. W. Seo,  “Adhesive Polymer Bonding Method for Integration of III-V Thin-Film Optoelectronic Devices onto Silicon Substrate,”  IEEE Transactions on Components, Packaging and Manufacturing Technology, vol. 8, pp. 392-398,  2018
• Ritesh Ray Chaudhuri, Amarachukwu N Enemuo, Youngsik Song, and Sang-Woo Seo, “Polymer Based Resonant Waveguide Grating Photonic Filter with On-chip Thermal Tuning,” Optics Communications, vol. 418, pp. 1–9, 2018
• Sang-Woo Seo, Amarachukwu N Enemuo, and Hojjat Rostrami Azmand, “Fast thermo-responsive optical membrane using hydrogels embedded in macroporous silicon,” IEEE sensors letters, vol. 2, issue 2, 1501004,  2018
• Amarachukwu N Enemuo, Hojjat Rostrami Azmand, Paul Bang and Sang-Woo Seo, “Comparative study of macroporous silicon-based photovoltaic characteristics using indium tin oxide-silicon and pn-silicon junction based devices,” Microelectronic Engineering, vol. 199, pp. 31-39, 2018
• Ray Chaudhuri R, Rostami Azmand H, Song Y, Seo S‐W, “Heterogeneously integrated resonant waveguide grating structure on magneto‐active elastomeric sponge,” Microw Opt Technol Lett. pp. 1–5, 2019
• S. Seo, H. Rostami Azmand and A. N. Enemuo, "Hollow core waveguide sensor array based on a macroporous silicon membrane structure," Journal of Lightwave Technology. pp. 2897427, 2019
• Youngsik Song, Hojjat Rostami Azmand, Sang-Woo Seo, “Rapid photothermal actuation of light-addressable, arrayed hydrogel columns in a macroporous silicon membrane,” Sensors and Actuators A: Physical, vol. 301, pp. 111729, 2020
• Sang-Woo Seo, Hojjat Rostami Azmand, Youngsik Song , “A fiber optic sensor platform for smart hydrogel event detection,” Optical Fiber Technology, vol. 58, pp. 102246, 2020
• Hojjat Rostami Azmand, Amarachukwu N Enemuo , Sang-Woo Seo, “Active liquid flow control through a polypyrrole-coated macroporous silicon membrane toward chemical stimulation applications,” Sensors and Actuators A: Physical, vol. 318, pp. 112512, 2021
• Sang-Woo Seo, Youngsik Song, Hojjat Rostami Azmand, “Photothermal liquid release from arrayed Au nanorod/hydrogel composites for chemical stimulation,” Journal of Micromechanics and Microengineering, 32 015003, 2021
• Hojjat Rostami Azmand, Youngsik Song, Sang-Woo Seo, “Light–controlled hydrogel platform for high-resolution chemical stimulation,”  Sensors and Actuators A: Physical, vol. 346, pp. 113809, 2022