Quantum Nanophotonics

Quantum photonics is the field of science and technology that explores the interaction of light (photons) with quantum systems. It involves the generation, manipulation, and detection of quantum states of light, such as single photons, entangled photons, and squeezed light. This field is crucial for the development of advanced quantum technologies, including quantum computing, quantum communication, and quantum sensing, which promise to revolutionize many aspects of science and industry.

Nanophotonics plays a pivotal role in enhancing light-matter interactions, which is fundamental to quantum photonics. By utilizing nanophotonic devices, we can create efficient quantum light sources and single-photon emitters. These devices confine light to sub-wavelength scales, significantly enhancing interactions with quantum emitters such as quantum dots and nanowires. This enhanced interaction is vital for generating, manipulating, and detecting quantum states of light with high precision and efficiency.

At QPANG, our research focuses on advancing quantum nanophotonics to overcome critical bottlenecks in quantum photonic technologies. One of the primary challenges is the precise control of the spectral and spatial overlap of quantum emitters with engineered electromagnetic fields using nanophotonic devices. To address this, we are developing nanofabrication techniques and achieving nanoscale control that pushes the current state of the art. Additionally, we investigate cooperative spontaneous emission effects, such as super-radiance and cooperative energy transfer processes, which can lead to new light sources for high-speed, short-distance communication and low-power laser-like sources based on spontaneous, rather than stimulated, emission.

Our lab is also pioneering the development of intrinsically quantum metasurfaces and photonic crystals, where the dipoles (meta-atoms) or scatterers are quantum objects like quantum dots. These advancements have the potential to create highly efficient and tunable quantum photonic devices, paving the way for a new generation of quantum technologies. Through these efforts, QPANG is at the forefront of research in quantum nanophotonics, striving to develop groundbreaking solutions that address both fundamental and applied challenges in the field.