Results 91 to 100 of about 29,414 (207)

Brillouin lasing in whispering gallery micro-resonators

open access: yesNew Journal of Physics, 2015
Thresholds of stimulated Brillouin scattering (SBS) in solid-state whispering gallery mode (WGM) microresonators are analyzed. It is shown that the SBS interaction is substantially different here from that known in the bulk case and in the case of water ...
B Sturman, I Breunig
doaj   +1 more source

Laser Stabilized to a Fiber Interferometer With Close‐To‐Zero Temperature Sensitivity

open access: yesLaser &Photonics Reviews, Volume 20, Issue 8, 17 April 2026.
A laser stabilized to a hollow‐core fibre interferometer is presented. The interferometer is designed to have near‐zero temperature phase‐sensitivity. Laser stabilized to this interferometer put in a non‐vacuum environment achieves ±550 kHz frequency variation over 100 h and an Allan deviation of 2 × 10−14τ, which is comparable to miniature ULE ...
Bo Shi   +7 more
wiley   +1 more source

Fast Simulation of Wide‐Angle Coherent Diffractive Imaging

open access: yesLaser &Photonics Reviews, Volume 20, Issue 7, 6 April 2026.
The propagation multi‐slice Fourier transform method is introduced as an accurate and efficient approach for describing light scattering for arbitrarily shaped objects. Its exceptional suitability for simulating coherent diffractive imaging of nanoparticles in the XUV and soft X‐ray range is demonstrated.
Paul Tuemmler   +3 more
wiley   +1 more source

Graded-index whispering gallery mode resonators [PDF]

open access: yes, 2005
Whispering gallery mode optical resonators which have spatially-graded refractive indices. In one implementation, the refractive index spatially increases with a distance from an exterior surface of such a resonator towards an interior of the resonator ...
Ilchenko, Vladimir   +3 more
core   +1 more source

Abnormal high-$Q$ modes of coupled stadium-shaped microcavities

open access: yes, 2014
It is well known that the strongly deformed microcavity with fully chaotic ray dynamics cannot support high-Q modes due to its fast chaotic diffusion to the critical line of refractive emission.
Choi, Muhan   +5 more
core   +1 more source

Pulsation modes in rapidly rotating stellar models based on the Self-Consistent Field method

open access: yes, 2009
Context: New observational means such as the space missions CoRoT and Kepler and ground-based networks are and will be collecting stellar pulsation data with unprecedented accuracy. A significant fraction of the stars in which pulsations are observed are
A. Skumanich   +44 more
core   +1 more source

Janet Malcolm's Self‐Portrait

open access: yes
Critical Quarterly, EarlyView.
Jerome Boyd Maunsell
wiley   +1 more source

Coupling coefficients of the Spherical dielectric microresonators with whispering gallery modes

open access: yesVìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2015
The calculation results of the Spherical dielectric microresonators coupling coefficients with whispering gallery modes are presented. Microresonator coupling coefficients as a functions of main parameters is considered. S-matrix frequency dependences of 
A. A. Trubin
doaj   +1 more source

Whispering gallery germanium-on-silicon photodetector

open access: yesOptics Letters, 2017
We design and demonstrate, to the best of our knowledge, the first whispering gallery germanium-on-silicon photodetector with evanescent coupling from a silicon bus waveguide in a CMOS-compatible process. The small footprint (63.6  μm2), high responsivity (∼1.04  A/W at 1530 nm), low bias voltage (-1  V), low dark current (2.03 nA), and large ...
Zhan Su   +8 more
openaire   +2 more sources

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

open access: yesNature Communications, 2017
High-quality optical resonators have the potential to provide a miniaturized frequency reference for metrology and sensing but they often lack stability. Here, Lim et al. experimentally characterize the stability of whispering-gallery resonators at their
Jinkang Lim   +8 more
doaj   +1 more source

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