A5017835137- Cold Atom Physics and Bose-Einstein Condensates
- Atomic and Subatomic Physics Research
- Quantum optics and atomic interactions
- Strong Light-Matter Interactions
- Spectroscopy and Laser Applications
- Advanced Fiber Laser Technologies
- Advanced Frequency and Time Standards
- Quantum Information and Cryptography
- Advanced Chemical Physics Studies
- Liquid Crystal Research Advancements
- Metamaterials and Metasurfaces Applications
- Atomic and Molecular Physics
- Semiconductor Quantum Structures and Devices
- GaN-based semiconductor devices and materials
- Advanced Antenna and Metasurface Technologies
- Laser Design and Applications
- Semiconductor Lasers and Optical Devices
- Ionosphere and magnetosphere dynamics
- Quantum Computing Algorithms and Architecture
- Semiconductor materials and devices
- Stellar, planetary, and galactic studies
- Quantum, superfluid, helium dynamics
- Quantum and electron transport phenomena
- Orbital Angular Momentum in Optics
- Terahertz technology and applications
University of Hong Kong
2020-2024
Hong Kong University of Science and Technology
2020-2024
Ulsan National Institute of Science and Technology
2012
We describe an experimental setup for producing a large cold erbium (Er) sample in narrow-line magneto-optical trap (MOT) simple and efficient way. implement pair of angled slowing beams with respect to the Zeeman slower axis, further slow down atoms exiting from slower. The second-stage enable MOT higher velocity. This scheme is particularly useful when at low optical power without conventional transverse cooling between oven slower, which case we significantly improve loading efficiency...
We report on experimental observations of trapped-mode resonances in double-layered symmetric electric ring resonators separated by dielectric inserts. The resulting metamaterial introduces that were thought to be produced only asymmetric unit cells. Experimental verification the newly observed trapped modes, along with analysis stacked geometry reported this paper, opens an alternative way forming sharp a structure extended all three dimensions.
We present a simple and effective method to implement an active stabilization of diode laser with injection locking, which requires minimal user intervenes. The injection-locked state the is probed by photodetector, sensitivity enhanced narrow laser-line filter. Taking advantage characteristic response power spectral modes from filter, we demonstrate that high purity low-intensity noise can be simultaneously maintained feedback injected laser. Our intrinsically cost-effective does not...
Dicke superradiance occurs when two or more emitters cooperatively interact via the electromagnetic field. This collective light-scattering process has been extensively studied across various platforms, from atoms to quantum dots and organic molecules. Despite extensive research, precise role of direct interactions between in remains elusive, particularly many-body systems where complexity poses significant challenges. In this study, we investigate effect dipole-dipole interaction 18 000...
Optical tweezer arrays have emerged as a key experimental platform for quantum computation, simulation, and metrology, enabling unprecedented levels of control over single atoms molecules. Existing methods to generate mostly rely on active beam-shaping devices, such acousto-optic deflectors or liquid-crystal spatial light modulators. However, these approaches fundamental limitations in array geometry, size, scalability. Here we demonstrate the trapping optical generated via holographic...
Accurately measuring magnetic fields is essential for magnetic-field sensitive experiments in areas like atomic, molecular, and optical physics, condensed matter experiments, other areas. However, since many are often conducted an isolated environment that inaccessible to experimentalists, it can be challenging accurately determine the field at target location. Here, we propose efficient method detecting with assistance of artificial neural network (NN). Instead directly desired location,...
The 53rd Annual Meeting of the APS Division Atomic, Molecular and Optical Physics will take place from May 30 – June 3, 2022 in Orlando, Fl, USA. <a href="https://morressier.zoom.us/j/89880865272?pwd=SWxTRGhra1ZOSDBrSkhVZDBzVDR6UT09/">Virtual Presenter Help Desk</a>
Accurately measuring magnetic fields is essential for magnetic-field sensitive experiments in like atomic, molecular, and optical physics, condensed matter experiments, other areas. However, since many are conducted an isolated vacuum environment that inaccessible to experimentalists, it can be challenging accurately determine the field. Here, we propose efficient method detecting with assistance of artificial neural network (NN). Instead field directly at desired location, detect several...
The 53rd Annual Meeting of the APS Division Atomic, Molecular and Optical Physics will take place from May 30 – June 3, 2022 in Orlando, Fl, USA. <a href="https://morressier.zoom.us/j/89880865272?pwd=SWxTRGhra1ZOSDBrSkhVZDBzVDR6UT09/">Virtual Presenter Help Desk</a>
The 53rd Annual Meeting of the APS Division Atomic, Molecular and Optical Physics will take place from May 30 – June 3, 2022 in Orlando, Fl, USA. <a href="https://morressier.zoom.us/j/89880865272?pwd=SWxTRGhra1ZOSDBrSkhVZDBzVDR6UT09/">Virtual Presenter Help Desk</a>
Despite the extensive study of matter-wave superradiance in a Bose-Einstein condensate (BEC) using its unique coherence property, controllability superradiant process has remained limited previous studies exploiting phase-coherent with isotropic contact interactions. Here, we combine tunable s-wave scattering dipolar interactions BEC $^{168}$Er atoms wherein asymmetry and threshold are independently controlled. By changing length near Feshbach resonance, tune increasing phase fluctuations....
We present a simple and effective method to implement an active stabilization of diode laser with injection locking, which requires minimal user intervenes. The locked state the is probed by photodetector, sensitivity enhanced narrow laser-line filter. Taking advantage characteristic response power spectral modes from filter, we demonstrate that high purity low intensity noise can be simultaneously maintained feedback injected laser. Our intrinsically cost-effective, does not require bulky...