Quantum antennas and nanoantennas can significantly enhance communication and computation technologies. Their nanoscale size allows them to operate at higher frequencies (e.g., terahertz), enabling faster data transmission and processing. Additionally, quantum antennas could potentially offer new capabilities in quantum communication, where quantum bits (qubits) are transmitted, offering superior security and information density compared to classical bits. Furthermore, quantum antennas can enable the sensing of ultra-weak fields, which is invaluable for the readout of quantum computers, the development of advanced radar systems, and magnetometry, expanding our capacity to measure and interpret previously undetectable phenomena.
Our research focuses on exploring the powerful potential of strong light-matter interactions by combining metamaterials and nanostructures with cutting-edge quantum materials such as atomically thin van der Waals nanomaterials, 2D semiconductors, quantum dots, and topological insulators. By designing these structures, we are able to enhance the inherently weak responses of quantum materials, paving the way for the development of advanced quantum, photonic, and optoelectronic technologies. Our work holds great promise for revolutionizing the field and pushing the boundaries of what is possible.
Metalenses and other metadevices are revolutionizing the field of optics by utilizing resonant dielectric and metallic nanoantennas that are packed with subwavelength granularity. Unlike conventional optical elements, these metadevices offer unparalleled control over the phase and amplitude of light through the geometric-phase approach, rather than relying on phase retardation upon light transmission. Our team has been at the forefront of developing functional metadevices that can control wavefronts, polarization, and other light characteristics, making them ideal for imaging, microscopy, and spectroscopy applications. Furthermore, we are actively working on developing dynamically tunable metadevices to address the needs of most photonic applications. Our work in this area has the potential to transform the field of optics and enable unprecedented control over light at the nanoscale.
While classic measurement strategies have made significant strides in achieving high resolution and sensitivity, they have reached their limits in many areas. However, the laws of physics allow for extreme levels of precision, which can be achieved by adopting strategies that take into account the quantum nature of light and matter and optimize their interactions. To this end, we are currently developing novel approaches that leverage quantum effects and scattering anomalies to enable optical measurements that surpass classical limits.
Wireless power transfer enables the transmission of electromagnetic energy without the need for physical connectors like wires or waveguides. However, conventional methods for electromagnetic field control often require tradeoffs between important parameters such as efficiency and stability. At our research lab, we are exploring novel approaches to electromagnetic field manipulation, including advanced techniques such as coherent perfect absorption, parity-time symmetry, and exceptional points. We are also leveraging the potential of metamaterials and metasurfaces to design highly efficient wireless power transfer systems that offer superior performance. Our cutting-edge work holds great promise for transforming the field of wireless power transfer and unlocking new possibilities for a wide range of applications.
Quantum and optical sensors
Advanced wireless power transfer
Anomalies in light scattering
A thorough understanding of scattering theory, particularly as it relates to electromagnetic and light scattering, is crucial for advancements in modern technology. Recent research has shown that engineered structures can exhibit a wide range of remarkable scattering phenomena, such as bound states in the continuum (BIC), exceptional points in PT-symmetric non-Hermitian systems, coherent and virtual perfect absorption, anapole, cloaking, and nontrivial lasing. Our team is actively researching these unconventional scattering phenomena and their potential applications.