Whispering Gallery Waves in a Neighborhood of a Higher Order Zero of the Curvature of the Boundary
Publications of the Research Institute for Mathematical Sciences, 1989 Let Ω⊂R 2 be a domain with a smooth boundary Γ. Suppose Ω is a media where some wave propagates with a speed, say 1 for simplicity. When Ω is strictly convex, there is a high frequency wave well known by the name of whispering gallery waves which propagates along ...
Gen Nakamura +2 more
openalex +4 more sources
Parity‐Frequency‐Space Elastic Spin Control of Wave Routing in Topological Phononic Circuits [PDF]
Advanced ScienceTopological phononic cavities, such as ring resonators with topological whispering gallery modes (TWGMs), offer a flexible platform for the realization of robust phononic circuits. However, the chiral mechanism governing TWGMs and their selective routing
Yao Huang +9 more
doaj +2 more sources
Continuous-wave whispering-gallery optical parametric oscillator based on CdSiP2
Optics Express, 2018 Continuous-wave (cw) optical parametric oscillators (OPOs) are ideally suited for applications, for example high-resolution spectroscopy, that need coherent sources combining narrow-linewidth emission with good wavelength tunability. Here, we demonstrate for the first time cw OPOs based on a millimeter-sized whispering gallery resonator (WGR) made of ...
Yuechen Jia +5 more
openalex +5 more sources
Robust low threshold full-color upconversion lasing in rare-earth activated nanocrystal-in-glass microcavity [PDF]
Light: Science & ApplicationsVisible light microlasers are essential building blocks for integrated photonics. However, achieving low-threshold (μW), continuous-wave (CW) visible light lasing at room temperature (RT) has been a challenge because of the formidable requirement of ...
Zhigang Gao +9 more
doaj +2 more sources
Trapping a single atom in the evanescent field of a WGM-resonator [PDF]
EPJ Web of Conferences, 2022 We demonstrate the trapping of single atoms in the evanescent field of a whispering-gallery-mode (WGM) resonator with a standing wave optical dipole trap. We present our progress towards an improved trap loading scheme.
Maron Gabriele +7 more
doaj +1 more source
Investigation and Analysis of Acoustojets by Spectral Element Method
Mathematics, 2022 In this study, acoustic wave scattering in a homogeneous media by an obstacle is examined in the case of plane wave excitation and the formation of acoustic jets is explored.
Ibrahim Mahariq +5 more
doaj +1 more source
In-Vivo and Ex-Vivo Measurements of Blood Glucose Using Whispering Gallery Modes
Sensors, 2020 The permittivity of blood glucose is not a strong function of its concentration in microwave or millimeter-wave frequencies. Measuring glucose concentrations remains a challenge, particularly in the presence of interference caused by the ambient leaky ...
Louis W. Y. Liu +8 more
doaj +1 more source
POSSIBILITY FOR FREQUENCY STABILIZATION OF MILLIMETER WAVELENGTH SOLID-STATE SOURCE BY A SCREENED DIELECTRIC RESONATOR [PDF]
Radio Physics and Radio Astronomy, 2016 Purpose: Showing the possibility in principle of the use of a screened dielectric resonator excited by the planar waveguide to stabilize the frequency of solid-state sources in the millimeter wavelength range.
A. E. Kogut +4 more
doaj +1 more source
Vortex Laser Based on a Plasmonic Ring Cavity
Crystals, 2021 The orbital angular momentum (OAM) of the structure light is viewed as a candidate for enhancing the capacity of information processing. Microring has advantages in realizing the compact lasers required for on-chip applications. However, as the clockwise
Xingyuan Wang, Xiaoyong Hu, Tianrui Zhai
doaj +1 more source
OMNIDIRECTIONAL MILLIMETER-WAVELENGTH ANTENNAS BASED ON SEGMENTAL DIELECTRIC RESONATORS WHICH SUPPORT WHISPERING GALLERY MODES [PDF]
Radio Physics and Radio Astronomy, 2023 Subject and Purpose. The subject of investigation is a new class of resonant-type transmit antennas intended for operation at millimeter wavelengths.
A. E. Kogut +7 more
doaj +1 more source