Results 31 to 40 of about 904,763 (300)

Wavelength-independent coupler from fiber to an on-chip cavity, demonstrated over an 850nm span [PDF]

open access: yes, 2007
A robust wide band (850 nm) fiber coupler to a whispering-gallery cavity with ultra-high quality factor is experimentally demonstrated. The device trades off ideality for broad-band, efficient input coupling.
Carmon, Tal   +3 more
core   +1 more source

Fair and efficient student placement with couples [PDF]

open access: yesInternational Journal of Game Theory, 2007
We study situations of allocating positions or jobs to students or workers based on priorities. An example is the assignment of medical students to hospital residencies on the basis of one or several entrance exams. For markets without couples, e.g., for ``undergraduate student placement,'' acyclicity is a necessary and sufficient condition for the ...
Bettina Klaus, Flip Klijn
openaire   +6 more sources

Tunable frequency combs based on dual microring resonators

open access: yes, 2015
In order to achieve efficient parametric frequency comb generation in microresonators, external control of coupling between the cavity and the bus waveguide is necessary.
Dutt, Avik   +7 more
core   +1 more source

For Higher Coupling Efficiency [PDF]

open access: yesPhotonicsViews, 2019
AbstractTelecommunications connections must transport an unimaginable amount of data in real time over long distances. To feed source signals into the fiber optic cable with as little loss as possible, telecommunications companies monitor lasers' performance data using laser beam profilers equipped with infrared cameras from Allied Vision.
openaire   +1 more source

All-Angle Quasi-Self-Collimation Effect in a Rod-Type Silicon Photonic Crystal

open access: yesIEEE Photonics Journal, 2015
By changing the symmetry of a photonic crystal (PC) with a rectangular lattice to straighten one of the isofrequency contours, the PC shows an all-angle quasi-self-collimation (quasi-SC) effect. To investigate the straightness of the isofrequency contour
Ming Li   +9 more
doaj   +1 more source

Spin-dependent thermoelectric transport through double quantum dots

open access: yes, 2012
We study thermoelectric transport through double quantum dots system with spin-dependent interdot coupling and ferromagnetic electrodes by means of the non-equilibrium Green function in the linear response regime.
Boese D   +18 more
core   +1 more source

Measurement Based Quantum Heat Engine with Coupled Working Medium

open access: yes, 2019
We consider measurement based single temperature quantum heat engine without feedback control, introduced recently by Yi, Talkner and Kim [Phys. Rev. E 96, 022108 (2017)].
Das, Arpan, Ghosh, Sibasish
core   +1 more source

Coupling Relationship Between Urban Resilience and Land Use Efficiency in He'nan Province

open access: yesShuitu baochi tongbao, 2022
[Objective] The coupling and coordination relationship between urban resilience and land use efficiency in He'nan Province was studied to provide scientific support for increasing the regional security coefficient and realizing sustainable development ...
Bai Shuai, Wu Jinhua, Wang Zhen
doaj   +1 more source

The Influence of Oceanic Turbulence on Fiber-Coupling Efficiency of Multi-Gaussian Shell-Mode Beams for Underwater Optical Communications

open access: yesPhotonics
This study theoretically investigates the coupling efficiency of multi-Gaussian Shell-mode (MGSM) beams in ocean turbulence. The expression for the fiber-coupling efficiency of the MGSM beams propagating through oceanic turbulent media is derived using ...
Xiaonan Jing   +7 more
doaj   +1 more source

A minimal model of an autonomous thermal motor

open access: yes, 2017
We consider a model of a Brownian motor composed of two coupled overdamped degrees of freedom moving in periodic potentials and driven by two heat reservoirs.
Alberto Imparato   +14 more
core   +1 more source

Home - About - Disclaimer - Privacy