Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Transmission Line Design Considerations01:23

Transmission Line Design Considerations

166
Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...
166
Linear Approximation in Frequency Domain01:26

Linear Approximation in Frequency Domain

111
Linear systems are characterized by two main properties: superposition and homogeneity. Superposition allows the response to multiple inputs to be the sum of the responses to each individual input. Homogeneity ensures that scaling an input by a scalar results in the response being scaled by the same scalar.
In contrast, nonlinear systems do not inherently possess these properties. However, for small deviations around an operating point, a nonlinear system can often be approximated as linear....
111
Propagation Speed of Electromagnetic Waves01:30

Propagation Speed of Electromagnetic Waves

3.4K
Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:
3.4K
Scaling01:26

Scaling

278
In designing and analyzing filters, resonant circuits, or circuit analysis at large, working with standard element values like 1 ohm, 1 henry, or 1 farad can be convenient before scaling these values to more realistic figures. This approach is widely utilized by not employing realistic element values in numerous examples and problems; it simplifies mastering circuit analysis through convenient component values. The complexity of calculations is thereby reduced, with the understanding that...
278
Design Example01:23

Design Example

348
The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
348
Frequency-dependent Selection01:21

Frequency-dependent Selection

22.1K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
22.1K

You might also read

Related Articles

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

Sort by
Same author

Prognostic value of pretreatment neutrophil-to-lymphocyte ratio in breast cancer patients receiving neoadjuvant chemotherapy: a systematic review and meta-analysis.

Frontiers in oncology·2026
Same author

Deciphering the potential of the C-reactive protein-albumin-lymphocyte index as a prognostic biomarker in malignancy: a systematic review and meta-analysis.

Frontiers in oncology·2026
Same author

A versatile, positive-going voltage indicator that enables accessible two-photon recordings in vivo.

bioRxiv : the preprint server for biology·2026
Same author

Realizing Landau levels with open equifrequency contours around band singularities.

Nature communications·2026
Same author

Topological edge state cavities: simultaneous enhancement of quality factor and free spectral range.

Light, science & applications·2026
Same author

Phonon engineering enables hyperbolic asymptotic line polaritons.

Nature nanotechnology·2025

Related Experiment Video

Updated: Jul 20, 2025

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.0K

A Multi-Channel Frequency Router Based on an Optimization Algorithm and Dispersion Engineering.

Hongyi Yuan1, Nianen Zhang1, Hongyu Zhang1

  • 1Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurements of Ministry of Education, Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, Beijing 100081, China.

Nanomaterials (Basel, Switzerland)
|July 29, 2023
PubMed
Summary
This summary is machine-generated.

This study introduces a novel bandgap optimization algorithm to design compact, multi-channel integrated frequency routers. The new nanophotonic devices efficiently route light frequencies, enhancing on-chip information processing capabilities.

Keywords:
frequency routermulti-channelsynthetic dimensiontopological optimization

More Related Videos

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

9.9K
Calibration of Vector Network Analyzer for Measurements in Radio Frequency Propagation Channels
10:00

Calibration of Vector Network Analyzer for Measurements in Radio Frequency Propagation Channels

Published on: June 2, 2020

21.1K

Related Experiment Videos

Last Updated: Jul 20, 2025

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.0K
Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

9.9K
Calibration of Vector Network Analyzer for Measurements in Radio Frequency Propagation Channels
10:00

Calibration of Vector Network Analyzer for Measurements in Radio Frequency Propagation Channels

Published on: June 2, 2020

21.1K

Area of Science:

  • Nanophotonics
  • Integrated Optics
  • Topological Photonics

Background:

  • Integrated frequency routers are crucial nanophotonic devices for guiding light of different frequencies to distinct output ports.
  • Realizing compact frequency routers with multiple channels has been a significant challenge, limiting their application in nanophotonics.
  • Photonic edge states offer potential for frequency routing, but their integration into compact devices is complex.

Purpose of the Study:

  • To propose and demonstrate a novel bandgap optimization algorithm for designing multi-channel frequency routers.
  • To achieve ultracompact device size while increasing the number of channels and output ports.
  • To enable robust and efficient on-chip multi-channel broadband information processing.

Main Methods:

  • Utilizing a bandgap optimization algorithm combining the finite element method and topology optimization.
  • Designing channels that support photonic edge states across a synthetic dimension of translational deformation.
  • Employing an all-dielectric planar configuration for the frequency router.

Main Results:

  • Successfully designed a multi-channel frequency router with up to nine channels and output ports in an ultracompact size.
  • Achieved operation within a working band of 0.585-0.665 c/a (1.504-1.709 μm), covering the 1.55 μm telecom wavelength.
  • Demonstrated robustness to fabrication errors due to the topological rainbow effect, with average crosstalk of -11.49 dB and extinction ratio of 16.18 dB.

Conclusions:

  • The developed optimization algorithm enables the creation of compact, multi-channel frequency routers with enhanced performance.
  • The proposed device offers a general method applicable to various materials and frequency ranges for on-chip information processing.
  • The compact, robust, and integrable all-dielectric planar configuration provides a new avenue for advanced nanophotonic applications.