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

Gene Conversion02:08

Gene Conversion

10.7K
Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...
10.7K
Gene Conversion02:08

Gene Conversion

3.1K
3.1K
Nonlinear Pharmacokinetics: Causes of Nonlinearity01:22

Nonlinear Pharmacokinetics: Causes of Nonlinearity

746
Nonlinearity in drug pharmacokinetics is caused by various factors influencing how a drug is absorbed, distributed, metabolized, and excreted. Understanding these nonlinear processes is crucial for predicting drug behavior in the body and optimizing drug dosing regimens.
Nonlinear drug absorption can occur when the process is rate-limited by solubility, carrier-mediated transport systems, or saturation of the presystemic gut wall or hepatic metabolism. For instance, high doses of riboflavin...
746
What is a Mode?01:07

What is a Mode?

26.6K
The mode is one of the commonly used measures of a central tendency. It is defined as the most frequent value in a data set.
There can be more than one mode in a data set if multiple values have the same highest frequency. For instance, suppose that the Statistics exam scores of 20 students are: 50; 53; 59; 59; 63; 63; 72; 72; 72; 72; 72; 76; 78; 81; 83; 84; 84; 84; 90; 93. Here, the mode is 72, as it occurs most frequently, five times.
A data set with two modes is called bimodal. For example,...
26.6K
Conversion of Units01:36

Conversion of Units

37.1K
Sometimes, there is a need to convert from one unit to another one. For instance, reading a cookbook in which quantities are expressed in units of liters or ounces may require conversion of quantities to cups. Or, when looking up directions on how to get to a location, we may be interested to know how many miles we are going to walk. In this case, we would have to convert units of feet or meters to miles.
The first step in the unit conversion is to list the given units and the units required...
37.1K
Application of Nonlinear Inequalities01:29

Application of Nonlinear Inequalities

268
A nonlinear inequality describes a comparison involving an expression that curves or behaves more complexly than a straight line. These inequalities often appear in forms that include squares, products, or variables in the denominator.To solve such an inequality, one starts by rewriting it so that zero appears on one side. For example, the inequality:  can be factored as: This form makes it easier to identify the values that cause the expression to equal zero. In this case, the...
268

You might also read

Related Articles

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

Sort by
Same author

RNF2 mediates pulmonary fibroblasts activation and proliferation by regulating mTOR and p16-CDK4-Rb1 signaling pathway.

Inflammation research : official journal of the European Histamine Research Society ... [et al.]·2022
Same author

Neural stem cell‑derived exosomes transfer miR‑124‑3p into cells to inhibit glioma growth by targeting FLOT2.

International journal of oncology·2022
Same author

Guidewire simulation of endovascular intervention: A systematic review.

The international journal of medical robotics + computer assisted surgery : MRCAS·2022
Same author

Targeting attack hypergraph networks.

Chaos (Woodbury, N.Y.)·2022
Same author

Prophylactic and Therapeutic HPV Vaccines: Current Scenario and Perspectives.

Frontiers in cellular and infection microbiology·2022
Same author

Creating a Thermostable β-Glucuronidase Switch for Homogeneous Immunoassay by Disruption of Conserved Salt Bridges at Diagonal Interfaces.

Biochemistry·2022
Same journal

Denoising algorithm of Φ-OTDR systems based on adaptive fractional wavelet transform denoising.

Optics express·2026
Same journal

Millisecond photon-to-photon latency and high-speed volumetric projection system for optogenetics.

Optics express·2026
Same journal

Polarization-encoded coaxial structured light for high-precision 3D surface profilometry.

Optics express·2026
Same journal

Discrete freeform optical design based on collaborative optimization of point cloud and local normals.

Optics express·2026
Same journal

Ultrafast ghost imaging with 25 GHz speckle switching and wavelength-division multiplexing.

Optics express·2026
Same journal

Atomic vapor cells fabricated by femtosecond laser welding of standard-optical-quality glass.

Optics express·2026
See all related articles

Related Experiment Video

Updated: Feb 14, 2026

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
14:18

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

11.9K

Nonlinear frequency up-conversion via double topological edge modes.

Cheng Qian, Ka Hei Choi, Raymond P H Wu

    Optics Express
    |February 25, 2018
    PubMed
    Summary
    This summary is machine-generated.

    We demonstrated enhanced third-harmonic generation in a novel plasmonic thin film structure. This photonic crystal design significantly boosts nonlinear optical effects for advanced photonic devices.

    More Related Videos

    Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
    12:21

    Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators

    Published on: April 4, 2016

    11.7K
    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
    12:18

    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

    Published on: August 5, 2013

    17.6K

    Related Experiment Videos

    Last Updated: Feb 14, 2026

    Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
    14:18

    Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

    Published on: February 28, 2016

    11.9K
    Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
    12:21

    Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators

    Published on: April 4, 2016

    11.7K
    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
    12:18

    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

    Published on: August 5, 2013

    17.6K

    Area of Science:

    • Photonics
    • Nonlinear Optics
    • Condensed Matter Physics

    Background:

    • Nonlinear frequency conversion is crucial for optical signal processing and laser technology.
    • Plasmonic nanostructures offer unique light-matter interactions for enhancing nonlinear optical phenomena.
    • Topological photonic crystals provide robust edge states with potential for novel device functionalities.

    Purpose of the Study:

    • To investigate nonlinear frequency up-conversion in a plasmonic thin film heterostructure.
    • To explore the role of topological edge modes in enhancing third-harmonic generation (THG).
    • To design a high-efficiency nonlinear photonic device using photonic crystals and plasmonics.

    Main Methods:

    • Rigorous numerical time-domain nonlinear hydrodynamic calculations.
    • Modeling of a plasmonic thin film sandwiched between 1D photonic crystals with different Zak phases.
    • Simulation of femtosecond pulse excitation and optical tunneling through band gaps.

    Main Results:

    • The heterostructure supports robust fundamental and high-order topological edge modes.
    • These topological edge modes simultaneously enhance third-harmonic generation.
    • THG conversion efficiency is three orders of magnitude higher than in a single plasmonic film.
    • Double topological edge modes can be excited via optical tunneling, leading to a large nonlinear response.

    Conclusions:

    • The proposed heterostructure demonstrates significantly enhanced THG.
    • Topological edge modes in photonic crystals are effective for boosting nonlinear optical effects.
    • This work paves the way for designing highly efficient nonlinear photonic devices.