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.