Research Interests

Nanophotonics
Meta-photonics
Photonic integrated circuit
Nanofabrication
2D material
Microfluidics
Biosensor

Atomic-Scale Light-Matter Interactions in Freestanding Nanophotonic Platforms

This research topic focuses on the integration of atomic-layer 2D materials and perovskite nanocrystals with diverse freestanding nanophotonic membranes. To overcome the limited interaction volume of monolayers, we utilize the extreme field confinement and minimal radiative loss enabled by the freestanding architecture. By engineering optical resonances, such as quasi-bound states in the continuum (quasi-BICs) and higher-order guided modes, we have demonstrated remarkable enhancements in photoluminescence and second-harmonic generation. Our platform also enables Å-level deterministic tuning of optical coupling through atomic-layer modulation.

These efforts establish a scalable and versatile framework for next-generation quantum photonics, nonlinear optics, and advanced semiconductor technologies.

Small, 22, e13320, 2026.

Advanced Functional Materials, 36, e24286, 2026

Nano Letters, 26, 4439, 2026.

Small Methods, 10, e01693, 2025

ACS Nano,18, 24173, 2024.

Metasurface-Enabled All-Dielectric Surface Waves for Integrated Photonics

This research topic explores the development of all-dielectric optical platforms based on Bloch Surface Waves (BSW), providing a low-loss, metal-free alternative to traditional plasmonic components.

By integrating precision-engineered metasurfaces onto 1D photonic crystals, we achieve controlled unidirectional switching and chiral-sensitive light routing at telecommunication wavelengths. Furthermore, we incorporate near-zero-index (NZI) metamaterial to enable long-range directional coupling and high-performance optical logic gates (, overcoming the limitations of conventional evanescent coupling. Our work also extends these BSW capabilities to the mid-infrared regime using simplified multilayer architectures for advanced molecular sensing.

These advancements establish a robust foundation for next-generation, high-density, and energy-efficient photonic integrated circuits.

ACS Nano, 16, 2224, 2022.

ACS Photonics, 7, 2915, 2020.

Appl. Phys. Lett., 115, 091102, 2019.

Integrated Nanofluidic Platforms for High-Sensitivity Biosensing

This research focuses on the development of highly sensitive and portable nanofluidic biosensing platforms for rapid biomarker detection.

By leveraging ion concentration polarization (ICP) and electrokinetic trapping (EKT), we achieve up to 10,000-fold preconcentration of biomolecules within minutes, significantly lowering the limit of detection.

We utilize bead-based diffusometry to quantify antigen concentrations by tracking the Brownian motion of immunobeads in real-time. To advance global health and remote diagnostics, our work integrates these technologies with smartphone-based optical systems and triboelectric nanogenerators for self-powered operation, establishing a robust framework for next-generation, energy-independent Point-of-Care diagnostics.

Nano Energy, 69, 104407, 2020.

Scientific Reports, 9 (1), 17131, 2019.

Sensors and Actuators B: Chemical, 272, 502-509, 2018.

ACS sensors 3 (7), 1409-1415, 2018