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Electromagnetic resonant systems, such as cavities and LC circuits, are widely used to detect ultralight boson dark matter and high-frequency gravitational waves. However, the narrow bandwidth of single-mode resonators necessitates multiple…

高能物理 - 唯象学 · 物理学 2025-05-07 Yifan Chen , Chunlong Li , Yuxin Liu , Jing Shu , Yuting Yang , Yanjie Zeng

Extracellular local field potentials (LFP) are usually modeled as arising from a set of current sources embedded in a homogeneous extracellular medium. Although this formalism can successfully model several properties of LFPs, it does not…

生物物理 · 物理学 2016-08-16 Claude Bédard , Helmut Kröger , Alain Destexhe

We derive new exceptional point (EP) conditions of the coupled microring resonators using coupled mode theory in space, a more accurate approach than the commonly used coupled mode theory in time. Transmission spectra around EPs obtained…

光学 · 物理学 2024-10-24 Kunpeng Zhu , Xiaoyan Zhou , Yinxin Zhang , Zhanhua Huang , Lin Zhang

Spatio-temporal control of ultrafast plasmon resonances has gained research interest in recent years because of their tremendous implications in nonlinear optics and ultrafast quantum technology. In particular, the lifetime of ultrashort…

光学 · 物理学 2022-03-01 Hira Asif , Ramazan Sahin

We present a novel approach and a theoretical framework for generating high order exceptional points of degeneracy (EPD) in photonic structures based on periodic coupled resonators optical waveguides (CROWs). Such EPDs involve the…

光学 · 物理学 2017-11-29 Mohamed Y. Nada , Mohamed A. K. Othman , Filippo Capolino

This paper presents a highly sensitive microwave sensor for dielectric sensing. One of the main disadvantages of microwave resonant-based sensors is cross-sensitivity originated by time-dependent uncontrolled environmental factors such as…

信号处理 · 电气工程与系统科学 2024-08-30 Nastouh Nikkhah , Rasool Keshavarz , Mehran Abolhasan , Justin Lipman , Negin Shariati

Objective. Long-term potentiation (LTP) is a fundamental mechanism underlying learning and memory, yet its investigation at the network level in vitro remains challenging, particularly when optogenetic stimulation is used. The objective of…

生物物理 · 物理学 2026-02-13 Matteo Dominici , Ilya Auslender , Clara Zaccaria , Yasaman Heydari , Lorenzo Pavesi

When two resonant modes in a system with gain or loss coalesce in both their resonance position and their width, a so-called "Exceptional Point" occurs which acts as a source of non-trivial physics in a diverse range of systems. Lasers…

We report the first direct mapping of the frequency-resolved local density of states (LDOS) in a photonic time crystal (PTC) implemented as an array of time-periodically modulated LC resonators at microwave frequencies. Broadband white…

Electronic sensors play important roles in various applications, such as industry and environmental monitoring, biomedical sample ingredient analysis, wireless networks and so on. However, the sensitivity and robustness of current schemes…

介观与纳米尺度物理 · 物理学 2023-04-28 Hao Yuan , Weixuan Zhang , Zilong Zhou , Wenlong Wang , Naiqiao Pan , Yue Feng , Houjun Sun , Xiangdong Zhang

Sources of intense, ultra-short electromagnetic pulses enable applications such as attosecond pulse generation, control of electron motion in solids and the observation of reaction dynamics at the electronic level. For such applications…

光学 · 物理学 2021-02-03 Evangelos Siminos , Illia Thiele , Christoffer Olofsson

Hybrid quantum dot (QD) / transition metal dichalcogenide (TMD) heterostructures are attractive components of next generation optoelectronic devices, which take advantage of the spectral tunability of QDs and the charge and exciton…

材料科学 · 物理学 2018-07-18 Aaron J. Goodman , Nabeel S. Dahod , William A. Tisdale

Strong dissipation of plasmonic resonances is detrimental to quantum manipulation. To enhance the quantum coherence, we propose to tailor the local density of states (LDOS) of plasmonic resonances by integrating with a photonic cavity…

量子物理 · 物理学 2024-05-24 Yuwei Lu , Haoxiang Jiang , Renming Liu

We propose a straightforward mechanism for achieving unique $k$-space resonance modes in one-dimensional time-varying cavities where periodic temporal modulation creates momentum band gaps through Floquet dynamics. By engineering the…

光学 · 物理学 2025-04-18 Zhou Bo , Guo Xianmin , Feng Xinsong , Chen Hongsheng , Wang Zuojia

Sublinear resonant deviations from an exceptional point degeneracy (EPD) has been recently promoted as a sensing scheme. However, there is still an ongoing debate whether the sensitivity advantage is negated by an increase in fundamental…

This paper is devoted to the unidimensional analysis of a 2-ports silicon resonator vibrating in thickness--extensional mode. Both excitation and detection ports are capacitive transducers used to control the system of longitudinal elastic…

仪器与探测器 · 物理学 2016-12-21 Lilia Arapan , Mihaela Ivan , Bernard Dulmet

Exceptional-point (EP) sensors are characterized by a square-root resonant frequency bifurcation in response to an external perturbation. This has lead numerous suggestions for using these systems for sensing applications. However, there is…

量子物理 · 物理学 2024-08-14 Hudson A. Loughlin , Vivishek Sudhir

The growing complexity of integrated photonics necessitates compact, low-power devices that transcend traditional, material-centric design approaches. In this study, we harness non-Hermitian physics to uncover novel properties of coupled…

光学 · 物理学 2025-10-30 P. Chang , S. Ramezanpour , A. Helmy

Latent spaces offer an efficient and effective means of summarizing data while implicitly preserving meta-information through relational encoding. We leverage these meta-embeddings to develop a modality-agnostic, unified encoder. Our method…

信号处理 · 电气工程与系统科学 2025-07-22 Abdullah Ahmed , Jeremy Gummeson

Passive resonators-systems that exhibit loss but no gain-are foundational elements across nearly every domain of physics and many types of of systems such as subwavelength particles, dielectric slabs, electric circuits, biological…

光学 · 物理学 2025-06-05 Asaf Farhi , Dror Hershkovitz , Haim Suchowski