Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Aliasing

Aliasing

Accurate signal sampling and reconstruction are crucial in various signal-processing applications. A time-domain signal's spectrum can be revealed using its Fourier transform. When this signal is sampled at a specific frequency, it results in multiple scaled replicas of the original spectrum in the frequency domain. The spacing of these replicas is determined by the sampling frequency.
If the sampling frequency is below the Nyquist rate, these replicas overlap, preventing the original...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Longitudinal immune-inflammatory profiles and mortality in older adults with sepsis: a multicentre prospective cohort study.

Journal of intensive care·2026

Same author

Clinical Applications of High-Frequency Ultrasound (HFUS) in Filler Identification and Complication Management.

Seminars in ultrasound, CT, and MR·2026

Same author

Multi-center and multi-reader comparison of abdominopelvic non-contrast and contrast-enhanced CT in the postoperative surveillance of gastrointestinal stromal tumors.

Quantitative imaging in medicine and surgery·2026

Same author

Pretreatment intratumoral mature TLSs in non-clear cell renal cell carcinoma are associated with response to immunotherapy rechallenge.

Journal for immunotherapy of cancer·2026

Same author

Age-related differences and common pathways of lymphocyte subsets in sepsis: a comparative review of elderly and pediatric patients.

Cell death & disease·2026

Same author

Metabolites and Polycystic Ovarian Syndrome: A Mendelian Randomization Study.

Current medicinal chemistry·2026

Search research articles

Related Experiment Video

Updated: Jan 8, 2026

Fabrication and Operation of a Nano-Optical Conveyor Belt

Fabrication and Operation of a Nano-Optical Conveyor Belt

Published on: August 26, 2015

Parallel overlapping-domain decomposition FDFD for modeling of large-scale complex nanostructures.

Zhanwen Wang, Chengnian Huang, Wangtao Lu

|December 19, 2025

Summary

This summary is machine-generated.

We developed a parallel domain decomposition method (DDM) for modeling complex nanostructures. This efficient numerical solver significantly reduces computation time for large-scale electromagnetic simulations.

More Related Videos

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Published on: October 12, 2019

Electric and Magnetic Field Devices for Stimulation of Biological Tissues

Electric and Magnetic Field Devices for Stimulation of Biological Tissues

Published on: May 15, 2021

Related Experiment Videos

Last Updated: Jan 8, 2026

Fabrication and Operation of a Nano-Optical Conveyor Belt

Fabrication and Operation of a Nano-Optical Conveyor Belt

Published on: August 26, 2015

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Published on: October 12, 2019

Electric and Magnetic Field Devices for Stimulation of Biological Tissues

Electric and Magnetic Field Devices for Stimulation of Biological Tissues

Published on: May 15, 2021

Area of Science:

Computational electromagnetics
Nanophotonics modeling
Numerical analysis

Background:

Increasing complexity of photonic and electromagnetic devices requires advanced numerical solutions.
Existing methods may face challenges with large-scale and complex nanostructures.

Purpose of the Study:

To develop an efficient and accurate parallel numerical solver for modeling large-scale complex nanostructures.
To address the computational demands of modern photonic and electromagnetic device simulations.

Main Methods:

A parallel overlapping domain decomposition method (DDM) based on the finite-difference frequency-domain (FDFD) formulation.
Partitioning the computational domain into overlapping subdomains with perfectly matched layers (PMLs).
Utilizing sparse factorization for accelerated iterative solutions and OpenMP for parallel implementation.

Main Results:

The proposed DDM-FDFD algorithm accurately models the electromagnetic response of large-scale complex nanostructures.
Numerical examples show excellent agreement with analytical and COMSOL solutions.
Achieved up to an order of magnitude reduction in computation time compared to existing methods.

Conclusions:

The developed parallel DDM-FDFD method is efficient and accurate for large-scale electromagnetic modeling.
It offers a powerful tool for the design and analysis of complex nanophotonic devices.
The approach demonstrates significant computational advantages for demanding simulations.