Results 31 to 40 of about 816,463 (187)

Ultra-wide sensing range plasmonic refractive index sensor based on a two-dimensional circular-hole grating engraved on a gold film

open access: yesResults in Physics, 2021
We propose a simple structure with a two-dimensional (2D) circular-hole grating engraved on a gold film for ultra-wide range plasmonic refractive index (RI) sensing.
Jianli Yu   +3 more
doaj   +1 more source

Thermodynamic Bounds on Efficiency for Systems with Broken Time-reversal Symmetry

open access: yes, 2011
We show that for systems with broken time-reversal symmetry the maximum efficiency and the efficiency at maximum power are both determined by two parameters: a "figure of merit" and an asymmetry parameter.
Giuliano Benenti   +8 more
core   +1 more source

Quantum State Discrimination with General Figures of Merit

open access: yes, 2012
We solve the problem of quantum state discrimination with "general (symmetric) figures of merit" for an even number of symmetric quantum bits with use of the no-signaling principle.
A. S. Holevo   +5 more
core   +1 more source

Synthesis and high temperature thermoelectric properties of Yb0.25Co4Sb12-(Ag2Te)x(Sb2Te3)1-x nanocomposites

open access: yesFrontiers in Chemistry, 2015
Nanocomposites are becoming a new paradigm in thermoelectric study: by incorporating nanophase(s) into a bulk matrix, a nanocomposite often exhibits unusual thermoelectric properties beyond its constituent phases.
Jin eZheng   +6 more
doaj   +1 more source

Study of double perovskites X2InSbO6 (X = Sr, Ba) for renewable energy; alternative of organic-inorganic perovskites

open access: yesJournal of Materials Research and Technology, 2022
Nowadays double perovskites for renewable energy are emerging materials because of their interesting properties such as simple and stable crystal structure.
Mohammed A. Amin   +10 more
doaj   +1 more source

Refractive-index sensing with ultra-thin plasmonic nanotubes

open access: yes, 2012
We study the refractive-index sensing properties of plasmonic nanotubes with a dielectric core and ultra-thin metal shell. The few-nm thin metal shell is described by both the usual Drude model and the nonlocal hydrodynamic model to investigate the ...
AD Boardman   +31 more
core   +1 more source

Ultimate low system dark count rate for superconducting nanowire single-photon detector [PDF]

open access: yes, 2015
The dark count rate (DCR) is a key parameter of single-photon detectors. By introducing a bulk optical band-pass filter mounted on a fiber-to-fiber optical bench cooled at 3 K and blocking down to 5 micrometer, we suppressed the DCR of a superconducting ...
42170   +7 more
core   +3 more sources

First Principle Study on Structural, Thermoelectric, and Magnetic Properties of Cubic CdCrO3 Perovskites: A Comprehensive Analysis

open access: yesCrystals, 2023
The primary objective of contemporary manufacturing is to produce items that are low-cost, environmentally friendly, and energy efficient. This study aimed to investigate compounds that fulfil these criteria, with a focus on CdCrO3.
S. Satapathy   +4 more
doaj   +1 more source

Thermoelectric performance of weakly coupled granular materials

open access: yes, 2009
We study thermoelectric properties of inhomogeneous nanogranular materials for weak tunneling conductance between the grains, g_t < 1. We calculate the thermopower and figure of merit taking into account the shift of the chemical potential and the ...
A. Glatz   +10 more
core   +1 more source

Figure of merit for photonic differentiators

open access: yesOptics Express, 2012
We introduce a universal figure of merit to evaluate the processing speed (operation bandwidth) performance of arbitrary-order optical differentiators. In particular, we define the maximum-to-minimum bandwidth ratio (MMBR) as a main figure of merit of these devices, which essentially informs about the broadness of the acceptable input pulse bandwidth ...
Reza, Ashrafi, José, Azaña
openaire   +2 more sources

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