In-plane terahertz surface plasmon-polaritons coupler based on adiabatic following

• URL: http://arxiv.org/abs/2002.06425v1
• Date: Sat, 15 Feb 2020 18:41:55 GMT
• Title: In-plane terahertz surface plasmon-polaritons coupler based on adiabatic following
• Authors: Wei Huang, Xiaowei Qu, Shan Yin, Mingrui Yuan, Wentao Zhang, Jiaguang Han
• Abstract summary: In-plane terahertz (THz) coupler based on the in-plane surface plasmon polaritons (SPPs) waveguides. In-plane THz coupler can largely simplify the fabrication process.
• Score: 8.205164444076674
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose a robust and broadband integrated terahertz (THz) coupler based on the in-plane surface plasmon polaritons (SPPs) waveguides, conducted with the quantum coherent control -- Stimulated Raman Adiabatic Passage (STIRAP). Our coupler consists of two asymmetric specific curved corrugated metallic structures working as the input and output SPPs waveguides, and one straight corrugated metallic structure functioning as the middle SPPs waveguide. From the theoretical and simulated results, we demonstrate that the SPPs can be efficiently transfered from the input to the output waveguides. Our device is robust against the perturbations of geometric parameters, and meanwhile it manifests broadband performance (from 0.3 THz to 0.8 THz) with the high transmission rate over 70$\%$. The in-plane THz coupler can largely simplify the fabrication process, which will make contribution to develop compact and robust integrated THz devices and promote the future applications in all optical network and THz communications.

Related papers

• Single-Shot Phase Diversity Wavefront Sensing in Deep Turbulence via Metasurface Optics [0.0]
  Free-space optical communication (FSOC) systems offer high-bandwidth and secure communication with minimal capital costs. Traditional Adaptive optics (AO) are typically added to these systems to decrease atmospheric channel losses. Alternative wavefront sensors using phase diversity can successfully reconstruct wavefronts in deep turbulence. We employ a nanostructured birefringent metasurface optic that enables low-latency phase diversity wavefront sensing in a compact form factor.
  arXiv  Detail & Related papers  (2024-10-24T14:43:00Z)
• Function Approximation for Reinforcement Learning Controller for Energy from Spread Waves [69.9104427437916]
  Multi-generator Wave Energy Converters (WEC) must handle multiple simultaneous waves coming from different directions called spread waves. These complex devices need controllers with multiple objectives of energy capture efficiency, reduction of structural stress to limit maintenance, and proactive protection against high waves. In this paper, we explore different function approximations for the policy and critic networks in modeling the sequential nature of the system dynamics.
  arXiv  Detail & Related papers  (2024-04-17T02:04:10Z)
• Amplification and Excitation of Surface Plasmon Polaritons via Four-Wave Mixing Process [0.0]
  We suggest a scheme for the excitation and amplification of surface plasmon polaritons (SPPs) along the interface between metal and semiconductor quantum well (SQW) The SQW consists of four-level asymmetric double quantum wells that exhibit quantum interference effects. In our proposed system, the inherent losses of SPPs are compensated by introducing gain through the FWM process.
  arXiv  Detail & Related papers  (2023-08-23T03:55:04Z)
• Quantum light-matter interactions in structured waveguides [1.6295305195753724]
  We explore special features of quantum light-matter interactions inside structured waveguides due to their finite bandwidth, band edges, and non-trivial topological properties. We study single-photon dynamics in a heterojunction of a long TB and short SSH waveguide connected to a 2LE at the SSH end.
  arXiv  Detail & Related papers  (2023-04-26T06:17:35Z)
• Machine Learning Extreme Acoustic Non-reciprocity in a Linear Waveguide with Multiple Nonlinear Asymmetric Gates [68.8204255655161]
  This work is a study of acoustic non-reciprocity exhibited by a passive one-dimensional linear waveguide incorporating two local strongly nonlinear, asymmetric gates. The maximum transmissibility reaches as much as 40%, and the transmitted energy from upstream to downstream varies up to nine orders of magnitude, depending on the direction of wave propagation.
  arXiv  Detail & Related papers  (2023-02-02T17:28:04Z)
• Tunable Coupler for Mediating Interactions between a Two-Level System and a Waveguide from a Decoupled State to the Ultra-Strong Coupling Regime [0.0]
  Two-level systems (TLS) coupled to waveguides are a fundamental paradigm for light-matter interactions and quantum networks. We introduce and experimentally demonstrate a method to tune the interaction between a TLS, implemented as a flux qubit, and a transmission line waveguide from a decoupled state to a coupling strength. This system enables future investigations in the dynamics of the spin-boson model, microwave photonics, and relativistic quantum information.
  arXiv  Detail & Related papers  (2022-08-10T21:43:25Z)
• Directional Josephson traveling-wave parametric amplifier via non-Hermitian topology [58.720142291102135]
  Low-noise microwave amplification is crucial for detecting weak signals in quantum technologies and radio astronomy. Current amplifiers do not satisfy all these requirements, severely limiting the scalability of superconducting quantum devices. Here, we demonstrate the feasibility of building a near-ideal quantum amplifier using a homogeneous Josephson junction array and the non-trivial topology of its dynamics.
  arXiv  Detail & Related papers  (2022-07-27T18:07:20Z)
• Picosecond Pulsed Squeezing in Thin-Film Lithium Niobate Strip-Loaded Waveguides at Telecommunication Wavelengths [52.77024349608834]
  We show quadrature squeezing of picosecond pulses in a thin-film lithium niobate strip-loaded waveguide. This work highlights the potential of the strip-loaded waveguide platform for broadband squeezing applications.
  arXiv  Detail & Related papers  (2022-04-12T10:42:19Z)
• Controllable multiple beam splitting in Hermitian and non-Hermitian symmetric coupled waveguide systems [0.6749750044497732]
  In Hermitian systems, we realize adiabatically light splitting in resonant case based on the stimulated Raman adiabatic passage (STIRAP) In non-Hermitian systems with even waveguides being dissipative, the compact and robust beam splitting can be achieved by eliminating the non-adiabatic coupling via the non-Hermitian STA method.
  arXiv  Detail & Related papers  (2022-02-16T13:19:53Z)
• Waveguide quantum optomechanics: parity-time phase transitions in ultrastrong coupling regime [125.99533416395765]
  We show that the simplest set-up of two qubits, harmonically trapped over an optical waveguide, enables the ultrastrong coupling regime of the quantum optomechanical interaction. The combination of the inherent open nature of the system and the strong optomechanical coupling leads to emerging parity-time (PT) symmetry. The $mathcalPT$ phase transition drives long-living subradiant states, observable in the state-of-the-art waveguide QED setups.
  arXiv  Detail & Related papers  (2020-07-04T11:02:20Z)
• Waveguide Bandgap Engineering with an Array of Superconducting Qubits [101.18253437732933]
  We experimentally study a metamaterial made of eight superconducting transmon qubits with local frequency control. We observe the formation of super- and subradiant states, as well as the emergence of a polaritonic bandgap. The circuit of this work extends experiments with one and two qubits towards a full-blown quantum metamaterial.
  arXiv  Detail & Related papers  (2020-06-05T09:27:53Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.