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
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
The Dot Product01:26

The Dot Product

263
Measuring how one directional quantity affects another along a specific path involves comparing their orientation and strength. When two such quantities are represented using direction and amount, a numerical result is computed to show how much one acts along the path of the other. This result comes from a rule combining both inputs' horizontal and vertical parts and adding the results.This calculation gives a single value that grows larger when both inputs point in similar directions and...
263
Dot Product01:29

Dot Product

976
The dot product is an essential concept in mathematics and physics.
In engineering, the dot product of any two vectors is the product of the magnitudes of the vectors and the cosine of the angle between them. It is denoted by a dot symbol between the two vectors.
Consider a vehicle pulling an object along the ground using a rope. If the rope makes an angle with the horizontal axis, the work done can be calculated using the dot product of the force applied and the object's displacement.
The dot...
976
Dot Product: Problem Solving01:21

Dot Product: Problem Solving

718
The dot product is a powerful tool in problem-solving involving vectors, given that the dot product of two vectors is the product of their magnitudes and the cosine of the angle between them measured anti-clockwise. Solving problems involving the dot product requires understanding its properties and developing a step-by-step process to solve them. Here are the main steps to follow when solving any general problem involving the dot product:
Identify the problem: Start by reading the problem and...
718
Scalar Product (Dot Product)01:11

Scalar Product (Dot Product)

27.6K
The scalar multiplication of two vectors is known as the scalar or dot product. As the name indicates, the scalar product of two vectors results in a number, that is, a scalar quantity. Scalar products are used to define work and energy relations. For example, the work that a force (a vector) performs on an object while causing its displacement (a vector) is defined as a scalar product of the force vector with the displacement vector.
The scalar product of two vectors is obtained by multiplying...
27.6K

You might also read

Related Articles

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

Sort by
Same author

Optical properties of InGaAsN quantum well-based microlasers passivated by SiO<sub>2</sub> sol-gel film.

Optics letters·2025
Same author

Short-Term Bienenstock-Cooper-Munro Learning in Optoelectrically-Driven Flexible Halide Perovskite Single Crystal Memristors.

Small methods·2025
Same author

Ultra-short stripe microlasers fabricated with a focused ion beam etching technique.

Optics letters·2025
Same author

Improved power and temperature performance of half-disk diode microlasers.

Optics letters·2024
Same author

A Hybrid System for Defect Detection on Rail Lines through the Fusion of Object and Context Information.

Sensors (Basel, Switzerland)·2024
Same author

Fast switching between the ground- and excited-state lasing in a quantum-dot microdisk triggered by sub-ps pulses.

Optics letters·2024
Same journal

Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

Optics letters·2026
Same journal

E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

Optics letters·2026
Same journal

Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

Optics letters·2026
Same journal

Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

Optics letters·2026
Same journal

Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

Optics letters·2026
Same journal

Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

Optics letters·2026
See all related articles

Related Experiment Video

Updated: Feb 4, 2026

Compact Quantum Dots for Single-molecule Imaging
17:14

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

18.7K

Highly efficient injection microdisk lasers based on quantum well-dots.

Eduard Moiseev, Natalia Kryzhanovskaya, Mikhail Maximov

    Optics Letters
    |October 2, 2018
    PubMed
    Summary
    This summary is machine-generated.

    Gallium arsenide (GaAs)-based microdisk lasers with a novel quantum well-dot active region achieve high output power and efficiency. These lasers operate continuously up to 110°C, demonstrating robust performance at elevated temperatures.

    More Related Videos

    Production and Targeting of Monovalent Quantum Dots
    10:16

    Production and Targeting of Monovalent Quantum Dots

    Published on: October 23, 2014

    26.1K
    Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications
    10:56

    Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications

    Published on: February 6, 2016

    14.6K

    Related Experiment Videos

    Last Updated: Feb 4, 2026

    Compact Quantum Dots for Single-molecule Imaging
    17:14

    Compact Quantum Dots for Single-molecule Imaging

    Published on: October 9, 2012

    18.7K
    Production and Targeting of Monovalent Quantum Dots
    10:16

    Production and Targeting of Monovalent Quantum Dots

    Published on: October 23, 2014

    26.1K
    Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications
    10:56

    Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications

    Published on: February 6, 2016

    14.6K

    Area of Science:

    • Semiconductor Lasers
    • Optoelectronics
    • Materials Science

    Background:

    • Microdisk lasers offer compact and efficient light sources.
    • High-temperature operation is crucial for many optoelectronic applications.
    • Developing novel active regions is key to improving laser performance.

    Purpose of the Study:

    • To investigate the performance of Gallium Arsenide (GaAs)-based microdisk lasers.
    • To explore the potential of Indium Gallium Arsenide (InGaAs) quantum well-dots as an active region.
    • To assess the high-temperature continuous-wave (CW) lasing capabilities.

    Main Methods:

    • Fabrication of microdisk lasers using metalorganic vapor phase epitaxy (MOVPE).
    • Utilizing a novel InGaAs quantum well-dot active region within a GaAs matrix.
    • Characterization of laser output power, differential efficiency, and power conversion efficiency.
    • Testing continuous-wave lasing performance at various temperatures up to 110°C.

    Main Results:

    • Demonstrated high output power of 18 mW from a 31 μm diameter microdisk laser.
    • Achieved a differential efficiency of approximately 31%.
    • Recorded a peak electrical-to-optical power conversion efficiency of 15%.
    • Observed stable continuous-wave lasing operation up to 110°C.

    Conclusions:

    • The novel InGaAs quantum well-dot active region enables high-performance GaAs-based microdisk lasers.
    • These lasers exhibit excellent output characteristics and efficiency.
    • The demonstrated high-temperature continuous-wave operation up to 110°C highlights their potential for demanding applications.