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

Quantum Numbers02:43

Quantum Numbers

50.5K
It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.
50.5K
Intracellular Signaling Cascades01:24

Intracellular Signaling Cascades

53.6K
Once a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. The continuation of a signal in this manner is called signal transduction. Signal transduction only occurs with cell-surface receptors, which cannot interact with most components of the cell, such as DNA. Only internal receptors can interact directly with DNA in the nucleus to initiate protein synthesis. When a ligand binds to its receptor, conformational changes occur that affect the...
53.6K
Rab Cascades01:25

Rab Cascades

3.6K
Rab GTPases act in a regulated cascade during membrane fusion, helping the lipid bilayers mix. The Rab family of proteins are active when bound to GTP, and inactive when bound to GDP. Hence, they act as guanine nucleotide-dependent molecular switches. Rab-GTP recognizes and binds to long or short-range tethering proteins to capture the target vesicle. These tethers coordinate with SNAREs on the vesicle and the target membrane to assemble the trans SNARE complex that locks the mixing bilayers.
3.6K
The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

57.7K
Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
57.7K
Amplifying Signals via Enzymatic Cascade01:22

Amplifying Signals via Enzymatic Cascade

18.6K
When a ligand binds to a cell-surface receptor, the receptor's intracellular domain changes shape, which may either activate its enzyme function or allow its binding to other molecules. The initial signal is amplified by most signal transduction pathways. This means that a single ligand molecule can activate multiple molecules of a downstream target. Proteins that relay a signal are most commonly phosphorylated at one or more sites, activating or inactivating the protein. Kinases catalyze...
18.6K
MAPK Signaling Cascades01:07

MAPK Signaling Cascades

8.4K
Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
8.4K

You might also read

Related Articles

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

Sort by
Same author

Reflectometric method for measuring residual oxides in through-silicon vias for 3D chip integration.

Optics express·2025
Same author

Qutrit toric code and parafermions in trapped ions.

Nature communications·2025
Same author

Boranes Paving the Way to Anionic Cyclic (Alkyl)(amino)carbenes (Ani-cAACs).

Angewandte Chemie (International ed. in English)·2023
Same author

Tricyanoborane-Functionalized Anionic N-Heterocyclic Carbenes: Adjustment of Charge and Stereo-Electronic Properties.

Chemistry (Weinheim an der Bergstrasse, Germany)·2022
Same author

ITIH5 shows tumor suppressive properties in cervical cancer cells grown as multicellular tumor spheroids.

American journal of translational research·2021
Same author

Thermoelectric-cooled terahertz quantum cascade lasers.

Optics express·2019

Related Experiment Video

Updated: Feb 4, 2026

Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures
09:12

Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures

Published on: August 10, 2017

8.0K

Broadband multilayer antireflection coating for quantum cascade laser facets.

Yohei Matsuoka, Mykhaylo P Semtsiv, Sven Peters

    Optics Letters
    |October 2, 2018
    PubMed
    Summary

    We developed a broadband anti-reflection (AR) coating for quantum cascade laser (QCL) facets, reducing modal reflectance to 0.75%. This coating covers the 8.0-12.0 μm emission spectrum for external cavity QCL applications.

    More Related Videos

    Gradient Echo Quantum Memory in Warm Atomic Vapor
    10:00

    Gradient Echo Quantum Memory in Warm Atomic Vapor

    Published on: November 11, 2013

    13.2K
    Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
    12:19

    Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

    Published on: April 4, 2017

    8.9K

    Related Experiment Videos

    Last Updated: Feb 4, 2026

    Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures
    09:12

    Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures

    Published on: August 10, 2017

    8.0K
    Gradient Echo Quantum Memory in Warm Atomic Vapor
    10:00

    Gradient Echo Quantum Memory in Warm Atomic Vapor

    Published on: November 11, 2013

    13.2K
    Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
    12:19

    Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

    Published on: April 4, 2017

    8.9K

    Area of Science:

    • Optics and Photonics
    • Semiconductor Lasers

    Background:

    • Quantum cascade lasers (QCLs) are crucial for mid-infrared applications.
    • External cavity configurations enhance QCL tunability and performance.
    • Facet coatings are essential for managing laser cavity feedback.

    Purpose of the Study:

    • To demonstrate a broadband multilayer anti-reflection (AR) coating for QCL facets.
    • To optimize the AR coating for the 8.0 to 12.0 μm emission spectrum.
    • To improve the performance of external cavity QCLs.

    Main Methods:

    • Fabrication of a multilayer AR coating using yttrium fluoride, zinc sulfide, and germanium.
    • Deposition of coating layers via electron-beam evaporation.
    • Integration of the AR coating onto QCL facets for external cavity use.

    Main Results:

    • Achieved broadband AR performance optimized for 8.0–12.0 μm.
    • Reduced modal reflectance of the QCL facet to 0.75% across the target bandwidth.
    • Demonstrated performance in a Littrow-type external cavity configuration.

    Conclusions:

    • The developed AR coating effectively suppresses facet reflectivity for broad-gain QCLs.
    • The broadband coating enables enhanced performance in external cavity laser setups.
    • This technology facilitates wider spectral coverage and improved tunability for QCLs.