Results 71 to 80 of about 21,135 (203)

Temperature Sensitivity of Polymer Fiber Microlasers

open access: yesPhotonic Sensors, 2022
There are many kinds of materials or methods used to make optical microcavities, and they have many different geometric structures. And electrospinning technique has become a very convenient and easy one to prepare polymer fiber. Based on this situation,
Chun Wang   +5 more
doaj   +1 more source

Phoxonic glass cavities based on whispering gallery mode resonators

open access: yesOptical Materials: X, 2021
A variety of studies have been performed on WGM microresonators made of different materials and exploiting very high quality factors. This feature has allowed their use in a broad variety of applications including micro-lasers, optical filtering and ...
D. Farnesi   +8 more
doaj   +1 more source

Controlling the Frequency-Temperature Sensitivity of a Cryogenic Sapphire Maser Frequency Standard by Manipulating Fe3+ Spins in the Sapphire Lattice

open access: yes, 2012
To create a stable signal from a cryogenic sapphire maser frequency standard, the frequency-temperature dependence of the supporting Whispering Gallery mode must be annulled.
A. E. Siegman   +10 more
core   +3 more sources

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

open access: yesFlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan   +7 more
wiley   +1 more source

Chip-scale high Q-factor glassblown microspherical shells for magnetic sensing

open access: yesAIP Advances, 2018
A whispering gallery mode resonator based magnetometer using chip-scale glass microspherical shells is described. A neodynium micro-magnet is elastically coupled and integrated on top of the microspherical shell structure that enables transduction of the
Eugene Freeman   +5 more
doaj   +1 more source

Passively mode locked Raman laser

open access: yes, 2010
We report on the observation of a novel mode locked optical comb generated at the Raman offset (Raman comb) in an optically pumped crystalline whispering gallery mode resonator.
A. A. Savchenkov   +8 more
core   +1 more source

Scattering of e Polarized Whispering-Gallery mode from Concave Boundary

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2012
In this work we present numerical results for the 2D problem of scattering E polarised whispering-gallery mode from concave convex perfectly conducting boundary.
Alexander P. Anyutin, V.I. Stasevich
doaj   +1 more source

Will you teach me? From seriousness to sincerity with apprentice phenomenography

open access: yesThe Australian Journal of Anthropology, EarlyView.
Abstract By pushing for adequate modes of conceptualisation, ontological turn theorists have made significant headway in the attempt to take seriously ontological worlds that are typically considered irreconcilable to those of the Western intellectual project.
Daniel Tranter‐Santoso
wiley   +1 more source

Chasing the thermodynamical noise limit in whispering-gallery-mode resonators for ultrastable laser frequency stabilization. [PDF]

open access: yes, 2017
Ultrastable high-spectral-purity lasers have served as the cornerstone behind optical atomic clocks, quantum measurements, precision optical microwave generation, high-resolution optical spectroscopy, and sensing.
Dale, Elijah   +8 more
core   +2 more sources

National Relics: Secular Sacrality, Museums, and Heritage‐Making in Nineteenth‐Century Chile

open access: yesMuseum Anthropology, Volume 49, Issue 2, Fall 2026.
ABSTRACT This article examines how objects and bodily remains are transformed and ritualized into national relics through collecting and exhibiting practices in museums. Focusing on nineteenth‐century Chile, it draws on archival sources, material culture theory, and the anthropology of religion to argue that objects associated with Chile's nation‐state
Hugo Rueda Ramírez
wiley   +1 more source

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