C.‐M. Hu
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View article: Emerging Inkjet-Compatible Anti-Counterfeiting Inks Based on Microfluidic-Synthesized NIR PbS/CdS Quantum Dots
Emerging Inkjet-Compatible Anti-Counterfeiting Inks Based on Microfluidic-Synthesized NIR PbS/CdS Quantum Dots Open
The lead sulfide (PbS) quantum dot (QD) material has excellent near-infrared (NIR) emissions. It is possible to synthesize core-shell-structured PbS/CdS QDs using the cation exchange method (Pb2+ → Cd2+), which enhances mass transfer and r…
View article: Unidirectional perfect absorption induced by chiral coupling in spin-momentum locked waveguide magnonics
Unidirectional perfect absorption induced by chiral coupling in spin-momentum locked waveguide magnonics Open
Chiral coupling offers alternative avenues for controlling and exploiting light-matter interactions. We demonstrate that chiral coupling can be utilized to achieve unidirectional perfect absorption. In our experiments, chiral magnon-photon…
View article: The Construction and Reflection of Integrated Circuit Design Liberal Studies Course in the View of AIGC
The Construction and Reflection of Integrated Circuit Design Liberal Studies Course in the View of AIGC Open
This dissertation explores the potential and challenges of the application of generative artificial intelligence (AIGC) and the construction of general education courses on integrated circuits. With the implementation of the national educa…
View article: Gain–loss coupled systems
Gain–loss coupled systems Open
Achieving oscillations with small dimensions, high power, high coherence, and low phase noise has been a long-standing goal in wave physics, driving innovations across classical electromagnetic theory and quantum physics. Key applications …
View article: Nonreciprocal Control of the Speed of Light Using Cavity Magnonics
Nonreciprocal Control of the Speed of Light Using Cavity Magnonics Open
We demonstrate nonreciprocal control of the speed of light by sending a microwave pulse through a cavity magnonics device. In contrast to reciprocal group velocity controlled by conventional electromagnetically induced transparency (EIT) e…
View article: Broadband microwave emission from acoustically modulated gain-driven polaritons
Broadband microwave emission from acoustically modulated gain-driven polaritons Open
By integrating a cantilever into a gain-embedded cavity magnonics platform, we investigate the impact of mechanical vibrations on gain-driven polaritons. The cantilever’s modulation creates a series of Floquet states spaced by the mechanic…
View article: Gain-Loss Coupled Systems
Gain-Loss Coupled Systems Open
Achieving oscillations with small dimensions, high power, high coherence, and low phase noise has been a long-standing goal in wave physics, driving innovations across classical electromagnetic theory and quantum physics. Key applications …
View article: Solid-state injection locking microwave amplifier
Solid-state injection locking microwave amplifier Open
In this paper, we present the design and performance evaluation of a prototype device based on gain-driven polariton, which can function as an amplifier. This device can outperform a single microwave cavity in terms of phase noise and stab…
View article: Gain-driven synchronization and asymmetric bound states in the continuum within non-Hermitian circuit model
Gain-driven synchronization and asymmetric bound states in the continuum within non-Hermitian circuit model Open
The gain-driven emission in gain–loss coupling systems attains significant interest. In this work, we study the monochromatic oscillation of a gain–loss coupling system through a circuit model, where the monochromacy is manifested as the g…
View article: Anomalous Long-Distance Coherence in Critically Driven Cavity Magnonics
Anomalous Long-Distance Coherence in Critically Driven Cavity Magnonics Open
Developing quantum networks necessitates coherently connecting distant systems via remote strong coupling. Here, we demonstrate long-distance coherence in cavity magnonics operating in the linear regime. By locally setting the cavity near …
View article: Non-hermitian magnonic knobbing between electromagnetically induced reflection and transparancy
Non-hermitian magnonic knobbing between electromagnetically induced reflection and transparancy Open
Manipulation of wave propagation through open resonant systems has attracted tremendous interest. When accessible to the open system, the system under study is prone to tempering to out of equilibrium, and a lack of reciprocity is the rule…
View article: Nonreciprocity in cavity magnonics at millikelvin temperature
Nonreciprocity in cavity magnonics at millikelvin temperature Open
Incorporating cavity magnonics has opened up a new avenue in controlling non-reciprocity. This work examines a yttrium iron garnet sphere coupled to a planar microwave cavity at millikelvin temperature. Non-reciprocal device behavior resul…
View article: Magnon-magnon coupling mediated by topological edge states
Magnon-magnon coupling mediated by topological edge states Open
The topology of the photonic bath shows excellent potential to engineer the intriguing interaction properties between light and matter. Here, we study the dielectric resonator array with a zigzag geometry, an analogy of the Su-Schrieffer-H…
View article: Synchronization of dissipatively coupled oscillators
Synchronization of dissipatively coupled oscillators Open
Synchronization is common in both nature and human physiology, often used to illustrate nonlinear dynamics. Interestingly, one can initiate their comprehension of this phenomenon from pure linear systems. In this Tutorial, we begin with a …
View article: Enhancement of photon blockade via topological edge states
Enhancement of photon blockade via topological edge states Open
Quantum technologies, holding the promise of exponentially superior performance than their classical counterparts for certain tasks, have consistently encountered challenges, including instability in quantum light sources, quantum decohere…
View article: An experimental demonstration of level attraction with coupled pendulums
An experimental demonstration of level attraction with coupled pendulums Open
We have experimentally demonstrated dissipative coupling in a double pendulum system through observation, which shows three distinctly different patterns of motion over the accessible parameter space. The described dissipative coupling app…
View article: Bound chiral magnonic polariton states for ideal microwave isolation
Bound chiral magnonic polariton states for ideal microwave isolation Open
Bound states in the continuum (BICs) present a unique solution for eliminating radiation loss. So far, most reported BICs are observed in transmission spectra, with only a few exceptions being in reflection spectra. The correlation between…
View article: Nonreciprocity in Cavity Magnonics at Milikelvin Temperature
Nonreciprocity in Cavity Magnonics at Milikelvin Temperature Open
Incorporating cavity magnonics has opened up a new avenue in controlling non-reciprocity. This work examines a yttrium iron garnet sphere coupled to a planar microwave cavity at milli-Kelvin temperature. Non-reciprocal device behavior resu…
View article: Degenerate Topological Edge States in Multimer Chains
Degenerate Topological Edge States in Multimer Chains Open
We propose and experimentally realize a class of quasi-one-dimensional topological lattices whose unit cells are constructed by coupled multiple identical resonators, with uniform hopping and inversion symmetry. In the presence of path-ind…
View article: Coherent Microwave Emission of a Gain-Driven Polariton
Coherent Microwave Emission of a Gain-Driven Polariton Open
By developing a gain-embedded cavity magnonics platform, we create gain-driven polariton (GDP) that is activated by an amplified electromagnetic field. Distinct effects of gain-driven light-matter interaction, such as polariton auto-oscill…
View article: Bistability in dissipatively coupled cavity magnonics
Bistability in dissipatively coupled cavity magnonics Open
Dissipative coupling of resonators arising from their cooperative dampings to a common reservoir induces intriguingly new physics such as energy level attraction. In this study, we report the nonlinear properties in a dissipatively coupled…
View article: Non-Hermitian Control between Absorption and Transparency in Reflectionless Magnonics
Non-Hermitian Control between Absorption and Transparency in Reflectionless Magnonics Open
Photon propagation with controllable absorption/transmission and meanwhile vanishing reflection is highly desired for many practical applications. Recent works in metamaterials and transformation optics have demonstrated promising progress…
View article: Visualization of synchronization zone on the Bloch sphere through an anti-PT-symmetric electrical circuit
Visualization of synchronization zone on the Bloch sphere through an anti-PT-symmetric electrical circuit Open
This work reports an analysis of the anti-parity-time (APT) symmetry system produced by pure dissipative coupled passive electric oscillators. Through spectral and time-domain measurements, the complex eigenfrequencies of the APT-symmetric…
View article: Advances in Magnetics Roadmap on Spin-Wave Computing
Advances in Magnetics Roadmap on Spin-Wave Computing Open
We acknowledge funding by the DFG (#423441604 and SFB TRR 173 Spin+X projects A01 and B02 #268565370), and KAUST (Project No. OSR-2019-CRG8-4048.2). This work has received funding from the European Union’s Horizon 2020 research and innovat…
View article: Nonlinear level attraction of cavity axion polariton in antiferromagnetic topological insulator
Nonlinear level attraction of cavity axion polariton in antiferromagnetic topological insulator Open
Strong coupling between cavity photons and various excitations in condensed matters boosts the field of light-matter interaction and generates several exciting sub-fields, such as cavity optomechanics and cavity magnon polariton. Axion qua…
View article: Cavity Magnonics
Cavity Magnonics Open
Cavity magnonics deals with the interaction of magnons - elementary
excitations in magnetic materials - and confined electromagnetic fields. We
introduce the basic physics and review the experimental and theoretical
progress of this young …