Results 11 to 20 of about 66,848 (126)

A spatial refractive index sensor using whispering gallery modes in an optically trapped microsphere [PDF]

open access: yes, 2006
We propose the use of an optically trapped, dye doped polystyrene microsphere for spatial probing of the refractive index at any position in a fluid. We demonstrate the use of the dye embedded in the microsphere as an internal broadband excitation source,
Mosk, Allard   +3 more
core   +7 more sources

A Self-Assembled Microlensing Rotational Probe [PDF]

open access: yes, 1998
A technique to measure microscopic rotational motion is presented. When a small fluorescent polystyrene microsphere is attached to a larger polystyrene microsphere, the larger sphere acts as a lens for the smaller microsphere and provides an optical ...
Brody, James P., Quake, Stephen R.
core   +2 more sources

Antifungal efficacy of amphotericin B encapsulated fibrin microsphere for treating Cryptococcus neoformans infection in Swiss albino mice

open access: yesBrazilian Journal of Infectious Diseases, 2016
A natural and biocompatible fibrin microsphere is one of the most promising dual delivery vehicle as compared to other traditionally designed delivery modalities.
Azmat Ali Khan   +3 more
doaj   +1 more source

Polymeric microsphere injection in large pore-size porous media

open access: yesPetroleum, 2020
High water-cut has become a worldwide challenge for oil production. It requires extensive efforts to process and dispose. This entails expanding water handling facilities and incurring high power consumption costs.
Dongqing Cao   +3 more
doaj   +1 more source

Recoiling DNA Molecule: Simulation & Experiment [PDF]

open access: yes, 2002
Single molecule DNA experiments often generate data from force versus extension measurements involving the tethering of a microsphere to one end of a single DNA molecule while the other is attached to a substrate.
Dickman, Ronald   +2 more
core   +2 more sources

Coaxial Atomic Force Microscope Tweezers [PDF]

open access: yes, 2010
We demonstrate coaxial atomic force microscope (AFM) tweezers that can trap and place small objects using dielectrophoresis (DEP). An attractive force is generated at the tip of a coaxial AFM probe by applying a radio frequency voltage between the center
Aguilar, J. A.   +2 more
core   +2 more sources

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

Experimental Study on Expansion Characteristics of Core-Shell and Polymeric Microspheres

open access: yesJournal of Nanotechnology, 2018
Traditional polymeric microsphere has several technical advantages in enhancing oil recovery. Nevertheless, its performance in some field application is unsatisfactory due to limited blockage strength.
Pengxiang Diwu   +8 more
doaj   +1 more source

Coupling of ultrathin tapered fibers with high-Q microsphere resonators at cryogenic temperatures and observation of phase-shift transition from undercoupling to overcoupling [PDF]

open access: yes, 2012
We cooled ultrathin tapered fibers to cryogenic temperatures and controllably coupled them with high-Q microsphere resonators at a wavelength close to the optical transition of diamond nitrogen vacancy centers.
Fujiwara, Masazumi   +5 more
core   +2 more sources

High-Q bismuth silicate nonlinear glass microsphere resonators [PDF]

open access: yes, 2012
The fabrication and characterization of a bismuth-silicate glass microsphere resonator has been demonstrated. At wavelengths near 1550 nm, high-modes can be efficiently excited in a 179 µm diameter bismuth-silicate glass microsphere via evanescent ...
Brambilla, G.   +8 more
core   +2 more sources

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