Results 111 to 120 of about 2,755 (206)

Slow-light enhanced optical detection in liquid-infiltrated photonic crystals

open access: yes, 2007
Slow-light enhanced optical detection in liquid-infiltrated photonic crystals is theoretically studied. Using a scattering-matrix approach and the Wigner-Smith delay time concept, we show that optical absorbance benefits both from slow-light phenomena as
Mortensen, N. A.   +4 more
core   +1 more source

Nanoscale optofluidic sensor arrays

open access: yesOptics Express, 2008
In this paper we introduce Nanoscale Optofluidic Sensor Arrays (NOSAs), which are an optofluidic architecture for performing highly parallel, label free detection of biomolecular interactions in aqueous environments. The architecture is based on the use of arrays of 1D photonic crystal resonators which are evanescently coupled to a single bus waveguide.
Sudeep, Mandal, David, Erickson
openaire   +2 more sources

Optofluidic Approaches for Enhanced Microsensor Performances

open access: yesSensors, 2014
Optofluidics is a relatively young research field able to create a tight synergy between optics and micro/nano-fluidics. The high level of integration between fluidic and optical elements achievable by means of optofluidic approaches makes it possible to
Genni Testa   +2 more
doaj   +1 more source

Distinctive Optofluidic Parallel Waveguides

open access: yesProcedia Engineering, 2014
AbstractNovel lightwave propagation and bending can be realized in optofluidics by designing the refractive index profile in the microchannel through diffusion via transformation optics. Diffusion in the microfluidic channel is controllable, tunable and reconfigurable, realizing sophisticated bidirectional gradient-index profile for light manipulation.
Chin, Lip Ket   +3 more
openaire   +2 more sources

Detection of Dissolved Lactose Employing an Optofluidic Micro-System

open access: yesDiagnostics, 2012
In this work, a novel optofluidic sensor principle is employed for a non-invasive and label-free characterization of lactose containing liquid samples. Especially for medicine and food industry, a simple, fast and accurate determination of the amount of ...
Franz Keplinger   +2 more
doaj   +1 more source

The Boston University Photonics Center annual report 2013-2014 [PDF]

open access: yes, 2014
This repository item contains an annual report that summarizes activities of the Boston University Photonics Center in the 2013-2014 academic year. The report provides quantitative and descriptive information regarding photonics programs in education ...
The Boston University Photonics Center
core  

Level-crossing and modal structure in microdroplet resonators

open access: yes, 2016
We fabricate a liquid-core liquid-clad microcavity that is coupled to a standard tapered fiber, and then experimentally map the whispering-gallery modes of this droplet resonator.
Attar, Sarah T.   +4 more
core   +1 more source

Spatial Encoding with Amplitude Modulation in Serial Flow Cytometry

open access: yesSensors
Serial flow cytometry was recently introduced as a method that can estimate measurement uncertainty (i.e., imprecision, the coefficient of variation of repeated measurements of individual particles) independent from population characteristics ...
Eric W. Esch   +4 more
doaj   +1 more source

Analytical mode normalization and resonant state expansion for optical fibers - an efficient tool to model transverse disorder

open access: yes, 2018
We adapt the resonant state expansion to optical fibers such as capillary and photonic crystal fibers. As a key requirement of the resonant state expansion and any related perturbative approach, we derive the correct analytical normalization for all ...
Allayarov, I.   +3 more
core   +1 more source

Experimental evidence for Abraham pressure of light

open access: yesNew Journal of Physics, 2015
The question of how much momentum light carries in media has been debated for over a century. Two rivalling theories, one from 1908 by Hermann Minkowski and the other from 1909 by Max Abraham, predict the exact opposite when light enters an optical ...
Li Zhang   +3 more
doaj   +1 more source

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