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Optical Whispering-Gallery-Mode Microbubble Sensors [PDF]

open access: yesMicromachines, 2022
Whispering-gallery-mode (WGM) microbubble resonators are ideal optical sensors due to their high quality factor, small mode volume, high optical energy density, and geometry/design/structure (i.e., hollow microfluidic channels).
Xuyang Zhao   +7 more
doaj   +2 more sources

Optical whispering-gallery mode barcodes for high-precision and wide-range temperature measurements [PDF]

open access: yesLight: 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   +2 more sources

Efficient coupling of free propagating light into Whispering Gallery Modes [PDF]

open access: yesEPJ 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   +1 more source

Optically pumped Milliwatt Whispering-Gallery microcavity laser

open access: yesLight: Science & Applications, 2023
Whispering-gallery-mode microcavity lasers possess remarkable characteristics such as high Q factors and compact geometries, making them an essential element in the evolution of microlasers.
Huiqi Li   +4 more
doaj   +1 more source

Antisymmetric Mode Cancellation for High-Q Cavities in a Double-Disk

open access: yesPhotonics, 2022
High-quality factor dielectric microcavities like whispering-gallery-mode resonators can be widely applied in fields such as laser, optical sensor, switch, and filter.
Seung Hyeon Hong   +4 more
doaj   +1 more source

Electro-Optic Control of Lithium Niobate Bulk Whispering Gallery Resonators: Analysis of the Distribution of Externally Applied Electric Fields

open access: yesCrystals, 2021
Whispering gallery resonators made out of lithium niobate allow for optical parametric oscillation and frequency comb generation employing the outstanding second-order nonlinear-optical properties of this material.
Yannick Minet   +3 more
doaj   +1 more source

A whispering-gallery scanning microprobe for Raman spectroscopy and imaging

open access: yesLight: 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

Whispering Gallery‐Mode Microdroplet Tensiometry

open access: yesAdvanced Photonics Research, 2021
Droplets are ideally suited to support high‐Q‐factor whispering gallery modes (WGMs) due to their perfectly smooth surface. WGMs enable extremely precise measurements of the droplet properties such as size and shape.
Gregor Pirnat, Matjaž Humar
doaj   +1 more source

Trapping a single atom in the evanescent field of a WGM-resonator [PDF]

open access: yesEPJ 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

Spatial Multiplexing of Whispering Gallery Mode Sensors

open access: yesSensors, 2023
Whispering gallery mode resonators have proven to be robust and sensitive platforms for the trace detection of chemical and/or biological analytes. Conventional approaches using serially addressed resonators face challenges in simultaneous multi-channel (
Stephen Holler, Matthew Speck
doaj   +1 more source

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