Photo-elasticity of silk fibroin harnessing whispering gallery modes [PDF]
Scientific Reports, 2023 Silk fibroin is an important biomaterial for photonic devices in wearable systems. The functionality of such devices is inherently influenced by the stimulation from elastic deformations, which are mutually coupled through photo-elasticity.
Nikolaos Korakas +9 more
doaj +2 more sources
Efficient coupling of free propagating light into Whispering Gallery Modes [PDF]
EPJ Web of Conferences, 2021 Whispering Gallery Mode resonators are dielectric structures with cylindrical symmetry. They are typically excited with an evanescent field leaking out of a tapered fiber or a waveguide.
Zambrana-Puyalto Xavier +2 more
doaj +2 more sources
Luminescent Donor-Acceptor Radical With Propeller Chirality: Bright and Photostable Red Circularly Polarized Luminescence and Whispering Gallery Mode Resonance. [PDF]
Angew Chem Int Ed EnglA series of donor‐attached brominated chiral luminescent radicals (CzTTBrM, 2CzTTBrM, and 3CzTTBrM) was synthesized, showing red to near‐infrared (NIR) circularly polarized luminescence (CPL) with exceptionally high PLQY of up to 76% and markedly enhanced CPL brightness (BCPL). Doping into polystyrene microspheres further yields whispering gallery mode
Nakamura K +14 more
europepmc +3 more sources
Monitoring Single DNA Docking Site Activity with Sequential Modes of an Optoplasmonic Whispering-Gallery Mode Biosensor [PDF]
SensorsIn recent years, there has been rapid advancement in single-molecule techniques, driven by their unparalleled precision in studying molecules whose sizes are beyond the diffraction limit.
Narima Eerqing +4 more
doaj +2 more sources
Photon-Sphere Modes in Curved Optical Microcavities: A Black-Hole Analogue Laser. [PDF]
Adv Sci (Weinh)An optical analogue of a Schwarzschild black hole is realized using curved microcavities that preserve light‐like geodesics. A new family of laser modes confined around the photon sphere is identified alongside conventional whispering‐gallery modes. Analytical theory, numerical simulations, and experiments reveal curvature‐induced confinement, enabling
Xu C +9 more
europepmc +2 more sources
A whispering-gallery scanning microprobe for Raman spectroscopy and imaging
Light: Science & Applications, 2023 Optical whispering-gallery-mode microsensors are a promising platform for many applications, such as biomedical monitoring, magnetic sensing, and vibration detection.
Wenbo Mao +4 more
doaj +1 more source
Evolution of Whispering Gallery Modes in Li-Doped ZnO Hexagonal Micro- and Nanostructures
Applied Sciences, 2020 The formation of optical cavities in Li-doped ZnO nanostructures was investigated. By means of the vapor–solid method, long micro- and nanostructures with a hexagonal cross-section were grown.
Rocío Ariza +4 more
doaj +1 more source
Optical whispering-gallery mode barcodes for high-precision and wide-range temperature measurements
Light: Science & Applications, 2021 Temperature measurement: optical barcodes from whispering-gallery sensors Extremely precise measurement of temperature using devices known as whispering-gallery mode (WGM) sensors can be greatly improved using a technique that simultaneously monitors ...
Jie Liao, Lan Yang
doaj +1 more source
Analysis of forward Brillouin scattering in optical fibers with whispering-gallery modes [PDF]
EPJ Web of Conferences, 2023 A new approach to detect and analyze transverse acoustic mode resonances (TAMRs), responsible for forward Brillouin scattering in optical fibers, is reported using optical whispering gallery modes (WGMs).
Sánchez Luis A. +3 more
doaj +1 more source
Trapping photons with optical black hole
Light: Science & Applications, 2023 An optical black-hole cavity based on transformation optics enables Q-factor enhancement and strong field confinement, by eliminating the intrinsic radiation loss of the conventional whispering-gallery modes, holding potential for applications in energy ...
You-Ling Chen, Qi-Tao Cao, Yun-Feng Xiao
doaj +1 more source