Results 121 to 130 of about 3,412,246 (356)

Miniaturized Single‐Photon Level Computational Complex Field Imaging System via Meta‐Optics

open access: yesAdvanced Optical Materials, EarlyView.
8192 Hadamard mask patterns generated by the digital micromirror device (DMD) are projected onto a micro target sample via a metalens. The corresponding modulated intensity spectrum encoded with the spatial information of the target is then captured by a photomultiplier tube (PMT) at the Fourier plane to recover both the amplitude and phase images ...
Yuhao Wang   +10 more
wiley   +1 more source

Dowód matematyczny – argumentacja czy derywacja? – część II

open access: yesZagadnienia Filozoficzne w Nauce, 2011
In the first part of the paper, Azzouni’s derivation–indicator view was presented. In the second part it is analyzed in a detailed way. It is shown, that many problems arise, which cannot be explained in a satisfactory way in Azzouni’s theory, in ...
Krzysztof Wójtowicz
doaj  

Formally verifying Ada programs which use real number types [PDF]

open access: yes
Formal verification is applied to programs which use real number arithmetic operations (mathematical programs). Formal verification of a program P consists of creating a mathematical model of F, stating the desired properties of P in a formal logical ...
Sutherland, David
core   +1 more source

Perceptions on proof and the teaching of proof: A comparison across preservice secondary teachers in Australia, USA and Korea [PDF]

open access: yes, 2019
Despite the recognised importance of mathematical proof in secondary education, there is a limited but growing body of literature indicating how preservice secondary mathematics teachers (PSMTs) view proof and the teaching of proof.
Hine, Gregory   +2 more
core   +1 more source

Dark‐State Guided‐Mode Resonance Sensors: Engineering Miniature Sensing Platforms

open access: yesAdvanced Optical Materials, EarlyView.
This research introduces compact guided‐mode resonance sensing using Gaussian‐beam‐induced symmetry breaking to excite dark states. The method generates high‐quality resonance signals in a small area, demonstrating a sensor with 128 micro‐cells and 200 nm RIU−1 sensitivity, showing potential for lab‐on‐chip and biosensing applications.
Yeong Hwan Ko   +2 more
wiley   +1 more source

The Beauty (?) of Mathematical Proofs

open access: yes, 2019
Mathematicians often use aesthetic vocabulary to describe mathematical proofs: they can be beautiful, elegant, ugly, etc. In recent years, philosophers of mathematics have been asking themselves what these descriptions in fact mean: should we take them literally, as tracking truly aesthetic properties of mathematical proofs, or are these terms being ...
openaire   +2 more sources

Strong and Weak Coupling Nanophysics with Free Electron Beams

open access: yesAdvanced Optical Materials, EarlyView.
This paper focuses on a short review of the study of the coupling between optical excitations at the nanometer scale, made possible by recent advances in free electron beam spectroscopies. In particular, plasmon–plasmon, plasmon–exciton, and plasmon–phonon couplings are reviewed. Abstract The work of Luis M.
Mathieu Kociak   +6 more
wiley   +1 more source

Advanced Emissivity Tuning Via Femtosecond Laser Surface Engineering

open access: yesAdvanced Optical Materials, EarlyView.
Femtosecond laser surface processing (FLSP) is employed to fabricate titanium‐based metamaterials with engineered micro/nano‐scale features that exhibit spectrally selective and omnidirectional thermal emissivity. By integrating advanced ellipsometry, electromagnetic modeling, and compositional analysis, the work reveals resonance‐driven emissivity ...
Zahra Kamali Khanghah   +8 more
wiley   +1 more source

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