Results 21 to 30 of about 61,123 (248)

Observation and characterization of mode splitting in microsphere resonators in aquatic environment

open access: yes, 2011
Whispering gallery mode (WGM) optical resonators utilizing resonance shift (RS) and mode splitting (MS) techniques have emerged as highly sensitive platforms for label-free detection of nano-scale objects.
Ozdemir, Sahin Kaya   +3 more
core   +1 more source

MEMS-actuated wavelength drop filter based on microsphere whispering gallery modes [PDF]

open access: yes, 2011
MEMS-enabled tuneable optical coupling between optical microsphere resonators and optical fibre waveguides is reported. We describe the design, fabrication and experimental characterization of a MEMS platform, based on electrothermal actuators, which ...
Blue, Robert   +3 more
core   +1 more source

Atomic entanglement near a realistic microsphere [PDF]

open access: yes, 2001
We study a scheme for entangling two-level atoms located close to the surface of a dielectric microsphere. The effect is based on medium-assisted spontaneous decay, rigorously taking into account dispersive and absorptive properties of the microsphere ...
Bell J S   +7 more
core   +4 more sources

Synthesis of Silicon Microspheres [PDF]

open access: yesMaterials Science Forum, 2016
The synthesis of silicon microspheres is of outmost importance, especially for the production of optical and electrical devices due to their unique properties displayed by this material. In this paper, we review the research on the synthesis of silicon microspheres, including one physical method, the drop method and several chemical methods, such as ...
Liu, Lian Yun   +4 more
openaire   +3 more sources

Frequency tuning of the whispering gallery modes of silica microspheres for CQED and spectroscopy [PDF]

open access: yes, 2000
We have tuned the whispering gallery modes of a fused silica microresonator over nearly 1 nm at 800 nm, i.e. over 0.5 FSR or 10^6 linewidths of the resonator. This has been achieved by a new method based on the stretching of a two-stem microsphere.
Braginsky   +18 more
core   +2 more sources

Asymmetrical two-atom entanglement in a coated microsphere [PDF]

open access: yes, 2006
We study evolution of entanglement of two two-level atoms placed inside a multilayered microsphere. We show that due to inhomogeneity of the field modes this entanglement essentially depends on the atomic positions (asymmetrical entanglement) and also on
A.B. Klimov   +38 more
core   +1 more source

Nano-jet Related to Bessel Beams and to Super-Resolutions in Micro-sphere Optical Experiments

open access: yes, 2017
The appearance of a Nano-jet in the micro-sphere optical experiments is analyzed by relating this effect to non-diffracting Bessel beams. By inserting a circular aperture with a radius which is in the order of subwavelength in the EM waist, and sending ...
Ben-Aryeh, Y.
core   +1 more source

PET/MRI of Hepatic 90Y Microsphere Deposition Determines Individual Tumor Response. [PDF]

open access: yes, 2016
PurposeThe purpose of our study is to determine if there is a relationship between dose deposition measured by PET/MRI and individual lesion response to yttrium-90 ((90)Y) microsphere radioembolization.Materials and methods26 patients undergoing lobar ...
Fowler, Kathryn J   +7 more
core   +2 more sources

Mesoporous Silica Microspheres by Super‐Fast Alkaline Etching of Micrometer‐Sized Stöber Particles

open access: yesAdvanced Engineering Materials, EarlyView.
Microscale silica particles are prepared along with a modified, scalable Stöber synthesis using the continuous addition of tetraethoxy silane to an ethanolic solution of ammonia with KCl. Etching with hydroxide ions at 95 °C gave porous analogs within minutes. Monodisperse particles are isolable in high yield after precipitation in ethanol.
Adrian Vaghar   +2 more
wiley   +1 more source

Cavity QED with Diamond Nanocrystals and Silica Microspheres

open access: yes, 2006
Normal mode splitting is observed in a cavity QED system, in which nitrogen vacancy centers in diamond nanocrystals are coupled to whispering gallery modes in a silica microsphere.
Armani D. K.   +31 more
core   +1 more source

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