Metamaterials & 2D/3D Nanostructures
Metamaterials are artificially-structured materials that have properties beyond materials found in nature. Here we engineer 2D and 3D nanostructures using sophisticated micro/nanofabrication tools and techniques to achieve extraordinary electromagnetic, mechanical, electronic and thermal properties.
Negative & zero refractive index metamaterials
Multi-quantum-well III-V emitter array
Randomly oriented paired nanobars
HSQ/WS2/Si3N4 microdisk lasers
Electron beam lithography & Helium ion beam
Optics & Nanophotonics
Optical technologies are everywhere around us, from solar cells to LEDs and lasers. The big question is how can we improve their performance and invent new optical devices? Ultra-small and lightweight micro/nanophotonic elements exploiting complex design strategy might be the answer. We seek to advance the photonics technology for lighting, communication, machining, imaging, spectroscopy, aerospace and defense applications.
Laser & anti-laser integrated on chip
Parity-time symmetric micro-ring laser
Ultrathin metasurface invisibility cloak
Light manipulation using distributed nanoantennas
Optical measurement setup
MEMS/NEMS & Energy harvesting
Global energy demand continues to surge. By engineering new materials and structures, we strive to maximize the efficiency of energy conversion. Passive and active NEMS/MEMS can enhance a material’s interaction with its environment to improve solar, heat, sound, and vibration energy harvesting. In addition, such systems enable precise sensing and control of electrical, optical and thermal responses.
Thermal radiation control using metamaterials
Piezoelectricity with 2D MoS2 monolayer
MEMS sensors & actuators
MEMS vibration energy harvester
Electronics & vacuum chamber for vibration test
Smart structures & composites
Next-generation aerospace, robotics, 3D printing, autonomous vehicles, and IoT technologies call for lightweight, robust and high-performance smart materials and composite structures. We develop integrated sensors and actuators from micro/nanoscale to macroscale to perform multifunctional tasks. We also aim to apply them for structural health monitoring and realize wafercrafts with on-board electronic and photonic instruments.
Mechanical metamaterials & micro/nanomechanics
Structural health monitoring using piezo & fiber optic sensors
Smart composites with integrated sensors
Mechanical testing in cryogenic environment
