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

Passive Filters

Passive Filters

Passive filters are utilized to shape the frequency spectrum of signals across a diverse array of applications. These filters, using only passive elements like resistors (R), inductors (L), and capacitors (C), are capable of selectively allowing or blocking certain frequency ranges without the need for external power sources.
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff...

Active Filters

Active Filters

Active filters are electronic circuits that use operational amplifiers (op-amps), resistors, and capacitors to filter out unwanted frequency components from a signal. A first-order low-pass active filter is designed to pass signals with a frequency lower than a certain cutoff frequency and attenuate frequencies higher than that cutoff frequency. The transfer function for a first-order low-pass active filter is:

Bonding in Metals

Bonding in Metals

Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”.

Metallic Solids

Metallic Solids

Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....

Alkali Metals

Alkali Metals

Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals

Metal-Ligand Bonds

Metal-Ligand Bonds

The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...

You might also read

Related Articles

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

Sort by

Same author

A biohybrid platform integrating bacterial propulsion and photoresponsive nanomedicine for adequate intratumoral drug delivery.

Journal of nanobiotechnology·2026

Same author

Photo-responsive polyprodrug supramolecular assemblies with self-accelerated subcellular delivery for synergistic photochemotherapy.

Science bulletin·2026

Same author

Near-Infrared Light-Responsive Immunomodulator Prodrugs Rejuvenating Immune Microenvironment for "Cold" Tumor Photoimmunotherapy.

Angewandte Chemie (International ed. in English)·2025

Same author

AI-enhanced X-ray microscopy for non-destructive detection, quantification, and particle size analysis of crystalline miconazole in amorphous solid dispersions.

Journal of pharmaceutical sciences·2025

Same author

A Photoactivatable Self-Assembled Nanoagonist for Synergistic Therapy against Pancreatic Ductal Adenocarcinoma.

Nano letters·2024

Same author

Harness arsenic in medicine: current status of arsenicals and recent advances in drug delivery.

Expert opinion on drug delivery·2024

Search research articles

Related Experiment Video

Updated: Feb 12, 2026

Writing and Low-Temperature Characterization of Oxide Nanostructures

Writing and Low-Temperature Characterization of Oxide Nanostructures

Published on: July 18, 2014

Metallic Nanostructures for Multispectral Filters.

Yongan Tang, Branislav Vlahovic

Journal of Nanoscience and Nanotechnology

|April 10, 2018

Summary

This study explores metal-dielectric-metal structures with cross-shaped holes for plasmonic multispectral filters. By tuning dielectric properties and hole features, researchers can precisely control optical spectral performance for visible to near-infrared applications.

Keywords:

Surface Plasmon Metallic Nanostructures Multispectral Filters

More Related Videos

A Rapid Method for Multispectral Fluorescence Imaging of Frozen Tissue Sections

A Rapid Method for Multispectral Fluorescence Imaging of Frozen Tissue Sections

Published on: March 30, 2020

Atomically Traceable Nanostructure Fabrication

Atomically Traceable Nanostructure Fabrication

Published on: July 17, 2015

Related Experiment Videos

Last Updated: Feb 12, 2026

Writing and Low-Temperature Characterization of Oxide Nanostructures

Writing and Low-Temperature Characterization of Oxide Nanostructures

Published on: July 18, 2014

A Rapid Method for Multispectral Fluorescence Imaging of Frozen Tissue Sections

A Rapid Method for Multispectral Fluorescence Imaging of Frozen Tissue Sections

Published on: March 30, 2020

Atomically Traceable Nanostructure Fabrication

Atomically Traceable Nanostructure Fabrication

Published on: July 17, 2015

Area of Science:

Plasmonics
Optical Engineering
Materials Science

Background:

Plasmonic nanostructures enable manipulation of light at the nanoscale.
Metal-dielectric-metal structures offer tunable optical properties.
Multispectral filters are crucial for various optical applications.

Purpose of the Study:

To investigate a metal-dielectric-metal structure with cross-shaped holes for plasmonic multispectral filters.
To analyze the influence of structural parameters on optical spectral performance.
To demonstrate the potential for creating tailored multispectral filters.

Main Methods:

Utilized the finite-difference time-domain (FDTD) method for simulations.
Studied surface plasmon excitation and localized surface plasmon polariton oscillation.
Investigated the effect of nanostructure geometry, dielectric refractive index, and dielectric thickness.

Main Results:

Transmission spectrum is significantly affected by hole features, dielectric refractive index, and dielectric thickness.
The Fabry-Perot cavity property provides flexibility in tuning the transmission spectrum.
Demonstrated the possibility of achieving desired multispectral filter characteristics.

Conclusions:

The proposed metal-dielectric-metal structure is a promising platform for developing tunable multispectral filters.
Precise control over dielectric and metallic structure parameters allows for programming optical spectral performance.
This design offers a pathway to customized plasmonic filters for visible to near-infrared wavelengths.