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Inducing nonreciprocal wave propagation is a fundamental challenge across a wide range of physical systems in electromagnetics, optics, and acoustics. Recent efforts to create nonreciprocal devices have departed from established…

Cavity magnonics is an emerging research area focusing on the coupling between magnons and photons. Despite its great potential for coherent information processing, it has been long restricted by the narrow interaction bandwidth. In this…

Mesoscale and Nanoscale Physics · Physics 2024-02-15 Jing Xu , Changchun Zhong , Shihao Zhuang , Chen Qian , Yu Jiang , Amin Pishehvar , Xu Han , Dafei Jin , Josep M. Jornet , Bo Zhen , Jiamian Hu , Liang Jiang , Xufeng Zhang

We study the interplay between rotation and openness for mode coupling in wavelength-scale microcavities. In cavities deformed from a circular disk, the decay rates of a quasi-degenerate pair of resonances may cross or anti-cross with…

Optics · Physics 2015-06-19 Li Ge , Raktim Sarma , Hui Cao

Waveguide directional couplers working at 5.712/11.9924 GHz are developed. Even holes symmetrical to the structure are drilled along the central line of the narrow-wall of waveguide, which are used to couple the electromagnetic power from…

Accelerator Physics · Physics 2015-06-11 Xiang He , Fengli Zhao , Xiangjian Wang

Photonic integrated circuits are gaining traction in the field of telecommunications and information processing for their low-loss and high-throughput data transmission in comparison to electronic integrated circuits. However, they are…

Optics · Physics 2025-08-08 Fahmy Yousry , Panu Hildén , Radoslaw Kolkowski , Andriy Shevchenko

Even though submicron silicon waveguides have been proposed for dense integration of photonic devices, to date the lightwave circuits on the market mainly rely on waveguides with micron-scale core dimensions. These larger waveguides feature…

Optical half-wave microresonators enable to control the optical mode density around a quantum system and thus to modify the temporal emission properties. If the coupling rate exceeds the damping rate, strong coupling between a…

We investigate an acoustical analog of circuit quantum electrodynamics that facilitates compact high-Q (${>}20,000$) microwave-frequency cavities with dense spectra. We fabricate and characterize a device that comprises a flux tunable…

Quantum Physics · Physics 2018-06-06 Bradley A. Moores , Lucas R. Sletten , Jeremie J. Viennot , K. W. Lehnert

In this paper, we investigate the generation of continuous variable entanglement between two spatially-separate nanocavities mediated by a coupled resonator optical waveguide in photonic crystals. By solving the exact dynamics of the cavity…

Quantum Physics · Physics 2013-05-29 Hua-Tang Tan , Wei-Min Zhang , Gao-xiang Li

An efficient and compact coupler - a device that matches a micro-waveguide and a nano-waveguide - is an essential component for practical applications of nanophotonic systems. The number of coupling approaches has been rapidly increasing in…

Optics · Physics 2012-10-08 Andrei Andryieuski , Andrei V. Lavrinenko

We theoretically investigate the interaction of a single quantum dipole with the modes of a fiber-coupled semiconductor waveguide. Through a combination of tight modal confinement and phase-matched evanescent coupling, we predict that…

Quantum Physics · Physics 2015-05-13 Marcelo Davanco , Kartik Srinivasan

Placing an ensemble of $10^6$ ultracold atoms in the near field of a superconducting coplanar waveguide resonator (CPWR) with $Q \sim 10^6$ one can achieve strong coupling between a single microwave photon in the CPWR and a collective…

Mesoscale and Nanoscale Physics · Physics 2009-07-27 J. Verdu , H. Zoubi , Ch. Koller , J. Majer , H. Ritsch , J. Schmiedmayer

Strong coupling enables a diverse set of applications that include optical memories, non-magnetic isolators, photonic state manipulation, and signal processing. To date, strong coupling in integrated platforms has been realized using…

Coupling of space-separated oscillators is interesting for quantum and communication technologies. In this work, it is shown that two antiferromagnetic oscillators placed inside an electromagnetic cavity couple cooperatively to its…

Mesoscale and Nanoscale Physics · Physics 2023-06-06 M. Białek , W. Knap , J. -Ph. Ansermet

Photonic resonance modes can be spectrally coupled to the vibrational modes of molecules in the mid-infrared regime through interactions between localized electric fields and nearby molecules. According to recent studies, radiative loss…

We investigate analytically the coupling of a coplanar waveguide resonator to a coplanar waveguide feedline. Using a conformal mapping technique we obtain an expression for the characteristic mode impedances and coupling coefficients of an…

Signal Processing · Electrical Eng. & Systems 2018-05-24 Ilya Besedin , Alexey P. Menushenkov

Silicon ring resonators are used as photon pair sources by taking advantage of silicon's large third order nonlinearity with a process known as spontaneous four wave mixing. These sources are capable of producing pairs of indistinguishable…

Quantum Physics · Physics 2018-02-14 C. C. Tison , J. A. Steidle , M. L. Fanto , Z. Wang , N. A. Mogent , A. Rizzo , S. F. Preble , P. M. Alsing

In this paper we present the design, manufacturing, characterization and analysis of the coupling ratio spectral response for Multimode Interference (MMI) couplers in Silicon-on-Insulator (SOI) technology. The couplers were designed using a…

We demonstrate the elements of a coupled-resonator optical waveguide in a side-coupled Fabry-P\'erot configuration, and show that the coupling rate between adjacent waveguides can be widely tuned through the thermo-optic effect. The device…

We experimentally demonstrate a broadband, fabrication tolerant, CMOS compatible compact silicon waveguide taper (34.2 um) in silicon-on-insulator wire waveguides. The taper works on multi-mode interference along the length of the taper. A…

Applied Physics · Physics 2020-01-01 Purnima Sethi , Shankar Kumar Selvaraja
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