We study plasmonic metasurfaces composed of metallic nanoresonators that confine light below the diffraction limit and enable engineered optical functionalities. By designing chiral meta-atoms or quasi-ordered architectures, we introduce polarization selectivity, structural coloration, and stochastic optical responses. These metasurfaces are further coupled with active and functional materials, such as electrochromic polymers (e.g., polyaniline), allowing dynamic modulation of plasmonic resonances. This integrated approach extends plasmonics from static nanophotonics to adaptive and multifunctional optical systems.

Reference

1. Advanced Materials 35, 2107917 (24 Aug. 2023) [IF 27.4 / JCR 2% in Chemistry, Multidisciplinary] 

2. Laser & Photonics Reviews  15, 2100235 (10 Nov. 2021)  [IF 9.8 / JCR 6.7% in Optics] 

3. ACS Nano 13, 11453 (22 Oct. 2019) [IF 15.8 / JCR 6% in Chemistry, Multidisciplinary] 

4. Physical Review X 9, 011024 (6 Feb. 2019) [IF 11.6 / JCR 5.5% in Physics, Multidisciplinary] 

We investigate Gires–Tournois resonances in ultrathin, lossy dielectric films with thicknesses far below the diffraction limit. Despite their minimal thickness, these structures exhibit strong phase and spectral modulation through interference-driven resonances. Our research focuses on actively tunable GT resonators, providing compact and scalable platforms for optical filtering, sensing, and thermal monitoring where minimal footprint and system-level integration are critical.

Reference

1. Materials Horizons 12, 9114-9124 (7 Nov 2025) [IF 10.7 / JCR 11.3% in Chemistry, Multidisciplinary]

2. iScience 25(8), 104727 (19 Aug 2022) [IF 4.6 / JCR 14.2% in Multidisciplinary Science] 

Glancing Angle Deposition (GLAD) enables rapid fabrication of three-dimensional nanostructures from a wide range of materials without lithography. By controlling deposition geometry and substrate motion, complex hybrid nanoparticles and metasurfaces can be realized with programmable shape and composition. We advance GLAD to create scalable nanophotonic building blocks for multifunctional devices, including displays, sensors, and actuators.

Reference

1. Advanced Functional Materials 34 (28), 2314434 (10 Jul 2024) [IF 18.5 / JCR 4.3% in Chemistry, Multidisciplinary] 

2. Advanced Optical Materials 12(2), 2301730 (16 Jan 2024) [IF 8 / JCR 8.4% in Optics] 

3. Advanced Science 4, 1700234 (1 Dec. 2017) [IF 14.3 / JCR 6.6% in Material Science, Multidisciplinary] 

4. Advanced Science 2, 1500016 (1 Jul. 2015) [IF 14.3 / JCR 6.6% in Material Science, Multidisciplinary] 

Inspired by underwater adhesion in nature, we develop proton-assisted electrostatic assembly techniques for rapid and scalable nanoparticle transfer. This method transports nanoparticles from microscopic aqueous volumes to large-area substrates within seconds while maintaining precise control over surface coverage. Using this approach, we fabricate wafer-scale functional plasmonic metasurfaces, providing a practical route for translating colloidal nanomaterials into optical and sensing systems.

Reference

1. Advanced Materials 36 (16), 2313299 (18 Apr 2024) ) [IF 27.4 / JCR 2% in Chemistry, Multidisciplinary] 

We develop electrically driven nanophotonic resonators with dynamically tunable optical properties. By integrating active media with plasmonic or GT resonators, we realize color-changing nanopixels that operate at the wafer scale. These adaptive optical surfaces are designed for reflective displays, color-corrective filters, and real-world adaptive optics, with ongoing efforts focused on scalability, color performance, and system integration.

Reference

1. Advanced Materials 36 (15), 2310556 (11 Apr 2024) [IF 27.4 / JCR 2% in Chemistry, Multidisciplinary] 

2. Nanophotonics 13, 1119 (26 Mar 2024) [IF 6.5 / JCR 11.7% in Optics]  

3. Microsystems & Nanoengineering 10, 22 (1 Feb 2024) [IF 7.3 / JCR 3.9% in Instruments & Instrumentation] 

4. Advanced Science 8, 2002419 (20 Jan. 2021) [IF 14.3 / JCR 6.6% in Material Science, Multidisciplinary] 

5. Science Advances 5, eaaw2205 (10 May 2019) [IF 11.7 / JCR 8.2% in Multidisciplinary Science] 

We develop label-free sensing and imaging platforms that visualize subtle physical and biochemical changes without dyes or binding agents. Plasmonic nanostructures enable highly sensitive detection of molecular and cellular environments, while ultrathin Gires–Tournois (GT) resonators provide two-dimensional visualization of minute thermal variations for early detection of battery thermal runaway. In parallel, through the InnoCORE project, we develop nanophotonic devices for real-time protein dynamics tracking toward early diagnosis of brain disorders. Together, these approaches establish scalable visualization technologies for safety and healthcare applications.

Reference

1. Advanced Materials 37 (40), 2511261 (9 Oct 2025) [IF 26.8 / JCR 2% in Materials Science, Multidisciplinary] 

2. ACS Applied Materials & Interfaces  16, 16622 (3 Apr 2024) [IF 8.3 / JCR 15.7% in Materials Science, Multidisciplinary] 

3. Advanced Materials Technologies 8 (7), 2201400 (29 Jan. 2023) [IF 6.4 / JCR 22.8% in Materials Science, Multidisciplinary] 

4. Advanced Materials 34 (21), 2110003 (26 May 2022) [IF 27.4 / JCR 2% in Chemistry, Multidisciplinary] 

5. Small 14, 1702990 (15 Feb. 2018) [IF 13 / JCR 7.2% in Physics, Applied] 

6. Nature Communications 7, 11331 (19 Apr. 2016) [IF 14.7 / JCR 6% in Multidisciplinary Science] 

We explore photonic approaches to computing and security based on physical randomness and uniqueness. Plasmonic physically unclonable functions (PUFs) generate unique optical fingerprints from stochastic nanoscale growth for secure authentication. Building on this concept, we investigate optical computing devices where optical noise and nonlinear responses enable probabilistic computing beyond deterministic digital logic.

Reference

1. ACS Nano 19 (40), 35992-36001 (14 Oct 2025) [IF 16 / JCR 6% in Materials Science, Multidisciplinary] 

2.  Nature Communications 16, 6269 (8 Jul 2025) [IF 15.7 / JCR 7.4% in Multidisciplinary Science] 

Our research in autonomous nanorobotics focuses on hybrid nanoparticles that integrate actuation and optical readout. Using 3D nanostructures, we achieve magnetic self-propulsion and optical tracking, enabling autonomous motion and localization. These scalable nanorobotic platforms aim to support future sensing, actuation, and biomedical applications.

Reference

1. Science Advances 4, eaat4388 (1 Nov. 2018) [IF 11.7 / JCR 8.2% in Multidisciplinary Science] 

2.  Advanced Materials 29, 1701024 (12 Jun. 2017) [IF 27.4 / JCR 2% in Chemistry, Multidisciplinary] 

3. Nano Letters 16, 4887 (1 Jul. 2016) [IF 9.6 / JCR 10% in Physics Applied] 

4. Science Advances 1, e1500501 (1 Dec. 2015) [IF 11.7 / JCR 8.2% in Multidisciplinary Science] 

We develop nanotechnologies for advanced packaging, particularly through-glass via (TGV)–based platforms. Our work includes nano-assembly for TGV fabrication and integration of functional metasurfaces on glass. These approaches address challenges in system integration, thermal management, and next-generation semiconductor packaging.

Reference

1.  Industry fundings from Corning  (2025) & Hyundai Motors (2023, 2025)