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

The de Broglie Wavelength02:32

The de Broglie Wavelength

In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
Photoelectric Effect02:26

Photoelectric Effect

When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
Molecular Spectroscopy: Absorption and Emission01:14

Molecular Spectroscopy: Absorption and Emission

Molecules possess discrete energy levels called quantum states. Unlike atoms, which have simpler energy levels, molecules possess additional rotational and vibrational energy levels. Each energy level is separated by an energy gap, with the gaps between adjacent electronic, vibrational, and rotational levels varying significantly. The three types of energy levels in a diatomic molecule are shown in Figure 1.
Propagation Speed of Electromagnetic Waves01:30

Propagation Speed of Electromagnetic Waves

Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:
The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

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. Schrödinger...
IR Absorption Frequency: Delocalization01:04

IR Absorption Frequency: Delocalization

Electron delocalization refers to the distribution of electrons across multiple atoms within a molecule rather than being confined to a single atom or bond. This phenomenon is common in systems with conjugated bonds—structures where alternating single and double bonds allow π-electrons to move freely across the network. The movement of electrons stabilizes the molecule and can affect various chemical properties, including vibrational frequencies observed in IR spectroscopy.
In IR spectroscopy,...

You might also read

Related Articles

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

Sort by
Same author

Extracellular Vesicle-embedded alginate hydrogel patch for accelerated wound healing.

Materials today. Bio·2026
Same author

Nanoparticle-enabled tuning of cell density for enhanced adhesion and tissue repair.

Nature communications·2026
Same author

Synergistic Ion-Releasing Nanoparticles as a Therapeutic Platform for Modulating Adult Stem Cell Activity in Wound Healing.

Biomaterials research·2025
Same author

Advances in Silicon-Based UV Light Detection.

Micromachines·2025
Same author

Recent Advancements in Photocatalytic Synthesis of Five Membered Nitrogen Heterocycles and Their Derivatives.

Molecules (Basel, Switzerland)·2025
Same author

Smartphone-Assisted Plasmonic Nanosensor for Visual and Specific Sensing of Toxic Cyanide Ions by β-Cyclodextrin Templated Gold-Rich/Silver Bimetallic Alloy Nanoparticles.

Materials (Basel, Switzerland)·2025

Related Experiment Video

Updated: Jul 4, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Quantum noise evolution under optical Kerr effects and two-photon absorption in a semiconductor waveguide.

Heongkyu Ju1, Eun-Cheol Lee

  • 1Division of BioNano Technology, College of BioNano Technology, Kyungwon University, Gyeonggi-do, 461-701, Korea. batu@kyungwon.ac.kr

Optics Express
|June 11, 2008
PubMed
Summary

Quantum noise in semiconductor waveguides is theoretically studied. Kerr effects squeeze noise, while two-photon absorption alters photon statistics.

More Related Videos

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

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

Related Experiment Videos

Last Updated: Jul 4, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

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

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

Area of Science:

  • Quantum optics
  • Semiconductor physics
  • Nonlinear optics

Background:

  • Quantum noise is crucial in understanding light-matter interactions.
  • Semiconductor waveguides are key components in photonic devices.
  • Nonlinear optical effects influence light propagation.

Purpose of the Study:

  • To theoretically investigate the evolution of quantum noise in ultrashort pulsed light within semiconductor waveguides.
  • To analyze the impact of nonlinear optical interactions, specifically Kerr effects and two-photon absorption, on quantum noise.

Main Methods:

  • Simulating optical quantum noise using statistical distribution of phasors in phase space with Gaussian probability.
  • Governing phasor evolution with the beam propagation method.
  • Theoretically analyzing the effects of Kerr nonlinearity and two-photon absorption.

Main Results:

  • Kerr effects were shown to squeeze quantum noise of coherent light.
  • Photon-number noise remained unchanged, while phase noise increased, with an invariant uncertainty area.
  • Two-photon absorption was found to alter photon-number statistics, distinct from Kerr effects.

Conclusions:

  • Nonlinear optical phenomena significantly modify quantum noise characteristics in semiconductor waveguides.
  • Kerr effects and two-photon absorption exhibit different impacts on quantum noise, offering potential for optical noise control.