Publications by authors named "Thi Huong Au"
Quantum dot (QD) coupling in nanophotonics has been widely studied for various potential applications in quantum technologies. Micro-machining has also attracted substantial research interest due to its capacity to use miniature robotic tools to make precise controlled movements. In this work, we combine fluorescent QDs and magnetic nanoparticles (NPs) to realize multifunctional microrobotic structures and demonstrate the manipulation of a coupled single-photon source (SPS) in 3D space via an external magnetic field.
View Article and Find Full Text PDFColloidal semiconductor quantum dots (QDs) are promising candidates for various applications in electronics and quantum optics. However, they are sensitive and vulnerable to the chemical environment due to their highly dynamic surface with a large portion of exposed atoms. Hence, oxidation and detrimental defects on the nanocrystal (NC) interface dramatically deteriorate their optical as well as electrical properties.
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- Researchers developed a magneto-photonic device using a low one-photon absorption (LOPA) direct laser writing (DLW) technique on a nanocomposite made of magnetite (Fe3O4) nanoparticles mixed with SU-8 photoresist.
- The dispersion of Fe3O4 nanoparticles varied based on their concentration, the viscosity of the SU-8 resist, and the mixing duration, with the optimal homogeneity achieved at 2 wt% concentration and a 20-day mixing period.
- The LOPA-based DLW enabled the creation of submicrometer magneto-photonic structures as small as 150 nm, showcasing strong magnetic field responses and potential applications as micro-actuators in liquid environments.