Electrical Engineering
Advanced Sensors and Actuators Laboratory
Research Interest
Photonic Devices and Systems
Nano/micro Fabrication and Processing
3D Photonic Integration/Packaging
Integrated Microfluidics
Integrated THz Microsystems
Neuroprosthetic Interface for Sensing and Actuation
Publications
Pandey, Mayank, Vidhyalakshmi Acharya, Ji-Yeon Shin, and Sang-Woo Seo. “Molecularly imprinted polypyrrole films for smart voltage-gated molecular uptake and release.” Sensors and Actuators B: Chemical, 138532. 2025
Pandey, Mayank, and Sang-Woo Seo. “Polypyrrole-based Electroactive Microvalve Array for Controlled Chemical Release.” Sensors and Actuators A: Physical, 116979. 2025
M. Pandey and S. -W. Seo, “Diffractive Optical Dermal Sensor for Noninvasive Arterial Pulse Wave Monitoring,” in IEEE Sensors Journal, vol. 25, no. 11, pp. 19104-19109, 1 June1, 2025.
Nafis Mustakim, Mayank Pandey, Sang-Woo Seo, “Surface photografted thermoresponsive hydrogel microvalves on PDMS/silicon hybrid membrane for light-actuated localized chemical release,” Sensors and Actuators B: Chemical, vol. 433, 137559, 2025
Mustakim, Nafis, Youngsik Song, and Sang-Woo Seo, “Gold Nanorod-Coated Hydrogel Brush Valves in Macroporous Silicon Membranes for NIR-Driven Localized Chemical Modulation,” Gels, 11, no. 1: 25, 2025
Sang-Woo Seo, Noguosadia Egharevba, “Tapered fiber optic sensor for arterial pulse wave monitoring,” Optical Fiber Technology, vol. 87, 103929, 2024
Nafis Mustakim, Luis F. Rodriguez Vera, Jose Pacheco Pinto, and Sang-Woo Seo, “Gold nanorod-embedded PDMS micro-pillar array for localized photothermal stimulation,” Journal of Microelectromechanical Systems, doi: 10.1109/JMEMS. 3418373. 2024
Nafis Mustakim, Youngsik Song, A. H. Rezwanuddin Ahmed, Sang-Woo Seo, “Control of chemical release in hydrogel microvalve array for localized chemical stimulation,” Sensors and Actuators A: Physical, vol. 373, 115401, 2024
Youngsik Song, Nafis Mustakim, Mayank Pandey, Sang-Woo Seo, “Localized flow control by photothermal actuation of pNIPAAm hydrogel brushes in a macroporous silicon membrane,” Microfluidics and Nanofluidics, vol. 28, 5, 2024
Sang-Woo Seo, Youngsik Song, Nafis Mustakim, “Hydrogel micropillar array for temperature sensing in fluid,” IEEE Sensors Journal, vol. 23, pp. 19021, 2023
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
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, vol. 32, 015003, 2022
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, Hojjat Rostami Azmand, Youngsik Song , “A fiber optic sensor platform for smart hydrogel event detection,” Optical Fiber Technology, vol. 58, pp. 102246, 2020
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
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
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
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
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
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
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, 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.
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.
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.
J. Xiao, R. R. Chaudhuri, X. Liu and S. W. Seo, “Integration of Ultrathin Device Utilizing Capillary Force and a Magnetic-Field-Based Pick-and-Place Method,” Journal of Microelectromechanical Systems, vol. 25, no. 6, pp. 1005-1014, Dec. 2016.
J. Xiao, R. R. Chaudhuri and S. W. Seo, “Heterogeneous Integration of Thin-Film Optical Devices Utilizing Fluidic Self-Assembly and Micro-Pick-and-Place Technique,” IEEE Transactions on Components, Packaging and Manufacturing Technology, vol. 6, no. 8, pp. 1283-1289, 2016
Rubén Darío Velásquez Ríos, Siméon Bikorimana, Muhammad Ali Ummy, Roger Dorsinville andSang-Woo Seo, “A bow-tie photoconductive antenna using a low-temperature-grown GaAs thin-film on a silicon substrate for terahertz wave generation and detection,” Journal of Optics, vol. 17, pp. 125802, 2015
Ritesh Ray Chaudhuri; Song, Youngsik; Seo, Sang-Woo, “Heterogeneously integrated optical detection platform for on-chip sensing applications, Journal of Optics, vol. 17, pp. 105804-105812, 2015
Jing Xiao, Ritesh Ray Chaudhuri, Sang-Woo Seo, “Fluidic assisted thin-film device heterogeneous integration: Surface tension as driving force and magnetic as guiding force,” Optics Communications, vol. 353, pp.171-177, 2015
Enemuo, A.N.; Chaudhuri, R.R.; Youngsik Song; Sang-Woo Seo, “Thermo-Optic Sensor Based on Resonance Waveguide Grating for Infrared/Thermal Imaging,” Sensors Journal, IEEE , vol.15, no.8, pp.4213-4217, 2015
Xie, A.J., F. Song, and S.-W. Seo, “An acousto-optic sensor based on resonance grating waveguide structure,” Sensors and Actuators A: Physical, vol. 216(1) pp. 364-369, 2014
Song, F., A.J. Xie, and S.-W. Seo, “Elastomeric polymer resonant waveguide grating based pressure sensor,” Journal of Optics, vol. 16(6) pp. 065702, 2014
F. Song, J. Xiao, A. J. Xie, and S.-W. Seo, “A polymer waveguide grating sensor integrated with a thin-film photodetector,” Journal of Optics, vol. 16, pp. 015503, 2014
Jing Xiao, Fuchuan Song and Sang-Woo Seo, “Multilayered integrated sensor for three-dimensional, micro total analytical systems,” Journal of Micromechanics and Microengineering, vol. 23, pp. 095022, 2013
Fuchuan Song, Daniela Pagliero, Carlos A. Meriles, and Sang-Woo Seo, “Rapid prototyping of a liquid core waveguide in a microfluidic PDMS channel for optical sensing,” Optical Engineering Journal, vol. 52(4), pp. 044404, 2013
Fuchuan Song, Jing Xiao, Sang-Woo Seo., “Heterogeneously integrated optical system for lab-on-a-chip applications, Sensors and Actuators A: Physical, vol. 195, pp. 148-153, 2013
Jing Xiao, Fuchuan Song, Kijeong Han, and Sang-Woo Seo, “Fabrication of CMOS-compatible optical filter arrays using gray-scale lithography,” Journal of Micromechanics and Microengineering, vol. 22, pp. 025006, 2012
J. Xiao, F. Song, and S.-W. Seo, “Surface-tension driven heterogeneous integration of thin film photonic devices using micro-contact printing for multi-material photonic integrated circuits,”, Journal of Lightwave Technology, vol. 29, pp. 1578-1582, 2011
F. Song, J. Xiao, F. Udawala, and S. W. Seo, “Heterogenous integration of a thin-film GaAs photodetector and a microfluidic device on a silicon substrate,”, Journal of Micromechanics and Microengineering, vol. 21, pp. 035008, 2011
Jing Xiao, Fuchuan Song, and Sang-Woo Seo, “Fluidic Assisted Heterogeneous Integration of Photonic Thin-Film Devices,” Photonics Technology Letters, 22, No. 21, pp. 1622-1624, 2010.











