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

Standing Electromagnetic Waves01:15

Standing Electromagnetic Waves

1.4K
Electromagnetic waves can be reflected; the surface of a conductor or a dielectric can act as a reflector. As electric and magnetic fields obey the superposition principle, so do electromagnetic waves. The superposition of an incident wave and a reflected electromagnetic wave produces a standing wave analogous to the standing waves created on a stretched string.
Suppose a sheet of a perfect conductor is placed in the yz-plane, and a linearly polarized electromagnetic wave traveling in the...
1.4K
Standing Waves in a Cavity01:28

Standing Waves in a Cavity

808
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
808
Passive Filters01:27

Passive Filters

420
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...
420
Traveling Waves: Lossless Lines01:27

Traveling Waves: Lossless Lines

106
The provided content explores the behavior of traveling waves on single-phase lossless transmission lines. It begins with a single-phase two-wire lossless transmission line of length Δx, characterized by a loop inductance LH/m and a line-to-line capacitance C F/m. These parameters result in a series inductance LΔx  and a shunt capacitance CΔx.
106
Plane Electromagnetic Waves I01:30

Plane Electromagnetic Waves I

3.5K
The existence of combined electric and magnetic fields that propagate through space as electromagnetic (EM) waves is the most significant prediction of Maxwell's equations. As Maxwell's equations hold in free space, the predicted electromagnetic waves do not require a medium for their propagation. An EM wave comprises an electric field, defined as the force per charge on a stationary charge, and a magnetic field, which is the force per charge on a moving charge.
The EM field is assumed...
3.5K
Lossless Lines01:23

Lossless Lines

90
In electrical engineering, a lossless transmission line is characterized by a purely imaginary propagation constant and a resistive characteristic impedance. The ABCD parameters, which describe the relationship between the input and output voltages and currents, indicate an equivalent π circuit with an imaginary series impedance and a shunt admittance. This results in a transmission line that, when the product of the phase constant (beta) and the length of the line is less than pi,...
90

You might also read

Related Articles

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

Sort by
Same author

Zeaxanthin Modulates Early Metabolic and Inflammatory Responses in db/db Mice: Associations with Intestinal Lipid Handling and Gut Microbiome Remodeling.

Biomolecules·2026
Same author

Transcriptomic insights into exercise-induced trabecular bone microarchitectural adaptations following combined aerobic and resistance training in mice.

Scientific reports·2026
Same author

Knowledge, Attitude and Practice of Nursing Students on Antibiotic Use and Resistance in Bangladesh.

SAGE open nursing·2026
Same author

Assessing reach and perceptions of hygiene behaviour change interventions for people with disabilities and older adults: Multi-country matched cross-sectional study.

International journal of hygiene and environmental health·2026
Same author

A lightweight deep learning model with channel attention for kidney cell classification from microscopy images.

Scientific reports·2026
Same author

Investigating the Association Between Heatstroke Mortality and Climatic Factors in Bangladesh: An Ecological Time Series Study.

Health science reports·2026
Same journal

Recent Progress in on-Demand Transfer-Enabled Integration of Wavelength-Scale Light Sources.

Nanophotonics (Berlin, Germany)·2026
Same journal

Tunable skyrmion bag textures in surface phonon polariton lattices.

Nanophotonics (Berlin, Germany)·2026
Same journal

All-Optical Diffractive Operators for Rapid, Computer-Free Morphological Transformations.

Nanophotonics (Berlin, Germany)·2026
Same journal

Tunable Skyrmion, Meron, and Skyrmion Bag Textures in Surface Phonon Polariton Lattices.

Nanophotonics (Berlin, Germany)·2026
Same journal

Deep-Subwavelength Slot-Enhanced Broadband Dynamic Camouflage Metasurface Across the S, C, X, and Ku Bands.

Nanophotonics (Berlin, Germany)·2026
Same journal

Machine Learning-Driven Cooling Window Design Beyond Hyperbolic Metamaterials.

Nanophotonics (Berlin, Germany)·2026
See all related articles

Related Experiment Video

Updated: May 10, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

18.8K

Exceptional points in a passive strip waveguide.

Shamkhal Hasanli1, Mehedi Hasan2, Hyejin Yoon3

  • 1School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea.

Nanophotonics (Berlin, Germany)
|April 28, 2025
PubMed
Summary
This summary is machine-generated.

Researchers demonstrated exceptional points (EPs) in integrated photonic strip waveguides. This offers unique wave propagation and radiation, enabling advanced applications in photonics and sensing.

Keywords:
exceptional pointsnon-Hermitian photonicsphotonic integrated circuitwaveguide

More Related Videos

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
07:28

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Published on: August 30, 2012

10.7K
Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
10:35

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

Published on: September 26, 2014

12.2K

Related Experiment Videos

Last Updated: May 10, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

18.8K
Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
07:28

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Published on: August 30, 2012

10.7K
Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
10:35

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

Published on: September 26, 2014

12.2K

Area of Science:

  • Photonics
  • Non-Hermitian Systems
  • Wave Propagation

Background:

  • Exceptional points (EPs) in non-Hermitian systems exhibit unique wave behaviors.
  • Integrating EPs into standard photonic platforms broadens their technological applications.

Purpose of the Study:

  • To propose and experimentally demonstrate EPs in an integrated photonic strip waveguide.
  • To investigate the unique deep wave penetration and uniform-intensity radiation profiles associated with these EPs.

Main Methods:

  • Introduction of a second-order grating on a strip waveguide to couple forward and backward propagating modes.
  • Development of modified coupled-mode equations to describe EP behavior in strip configurations.
  • Numerical optimization of grating duty cycle for simultaneous manipulation of first- and second-order couplings to achieve bandgap closure.

Main Results:

  • Experimental demonstration of EPs in the integrated photonic strip waveguide configuration.
  • Observation of deep wave penetration and uniform-intensity radiation profiles at EPs.
  • Symmetric transmission spectra and constant radiation profiles at the EP wavelength, contrasting with exponential decay at detuned wavelengths.

Conclusions:

  • Successful realization of EPs in a widely applicable strip waveguide configuration.
  • Demonstrated unique deep wave penetration and uniform-intensity radiation profiles.
  • Paves the way for advanced EP applications in nonlinear optics, ultrafast photonics, and sensing technologies.