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

Scalar and Vectors01:22

Scalar and Vectors

2.1K
In mechanics, commonly used terms like force, speed, velocity, and work can be classified as either scalar or vector quantities. A scalar is a physical quantity that can be described by its magnitude alone and does not require any directional components. Examples of scalar quantities are mass, area, and length.
Scalar quantities with the same physical units can be added or subtracted according to the usual algebra rules for numbers. For example, a class ending 10 min earlier than 50 min lasts...
2.1K
Scalar Notation01:28

Scalar Notation

1.1K
Scalar notation is a useful method for simplifying calculations involving vectors. When vectors are added or subtracted, their components can be added or subtracted separately using scalar notation. For instance, force, a vector quantity, can be broken down into its x and y components, called rectangular components, and then the magnitude and direction of these components can be determined using trigonometric functions.
Consider a man pulling a rope from a hook in the northeast direction. The...
1.1K
Introduction to Scalars01:21

Introduction to Scalars

20.3K
Many familiar physical quantities can be specified completely by giving a single number and the appropriate unit. For example, "a class period lasts 50 min," or "the gas tank in my car holds 65 L," or "the distance between the two posts is 100 m." A physical quantity that can be specified completely in this manner is called a scalar quantity. The word "scalar" is a synonym for "number." Time, mass, distance, length, volume,...
20.3K
Atomic Orbitals02:44

Atomic Orbitals

43.3K
An atomic orbital represents the three-dimensional regions in an atom where an electron has the highest probability to reside. The radial distribution function indicates the total probability of finding an electron within the thin shell at a distance r from the nucleus. The atomic orbitals have distinct shapes which are determined by l, the angular momentum quantum number. The orbitals are often drawn with a boundary surface, enclosing densest regions of the cloud.
43.3K
Atomic Structure01:33

Atomic Structure

207.3K
Overview
207.3K
Atomic Mass01:52

Atomic Mass

69.7K
Atoms — and the protons, neutrons, and electrons that compose them — are extremely small. For example, a carbon atom weighs less than 2 × 10−23 g. When describing the properties of tiny objects such as atoms, we use appropriately small units of measure, such as the atomic mass unit (amu). The amu was originally defined based on hydrogen, the lightest element, then later in terms of oxygen. Since 1961, it has been defined with regard to the most abundant isotope of carbon, atoms of which...
69.7K

You might also read

Related Articles

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

Sort by
Same author

Urgent request for pretomanid label expansion to align with WHO guidelines and improve treatment accessibility and efficacy.

IJTLD open·2025
Same author

Robotic surgery versus conventional laparoscopy in sigmoid colectomy for diverticular disease-a comparison of operative trauma and cost-effectiveness: retrospective, single-center analysis.

Langenbeck's archives of surgery·2024
Same author

Emergency reconstruction of extensor terminal slip defect by tendon plasty.

Hand surgery & rehabilitation·2023
Same author

A systematic review on diagnostics and surgical treatment of adult right-sided Bochdalek hernias and presentation of the current management pathway. Author's reply.

Hernia : the journal of hernias and abdominal wall surgery·2022
Same author

Wound healing of the donor site after skin removal on the foot: The skin of the foot, often forgotten in medical literature.

Hand surgery & rehabilitation·2022
Same author

A <sup>4</sup>He vector zero-field optically pumped magnetometer operated in the Earth-field.

The Review of scientific instruments·2021

Related Experiment Video

Updated: Jan 21, 2026

Microfluidic Imaging Flow Cytometry by Asymmetric-detection Time-stretch Optical Microscopy ATOM
07:19

Microfluidic Imaging Flow Cytometry by Asymmetric-detection Time-stretch Optical Microscopy ATOM

Published on: June 28, 2017

10.7K

All-optical isotropic scalar 4He magnetometer based on atomic alignment.

G Lieb1, T Jager1, A Palacios-Laloy1

  • 1CEA-Leti, MINATEC Campus, F-38054 Grenoble, France and University of Grenoble Alpes, F-38000 Grenoble, France.

The Review of Scientific Instruments
|August 3, 2019
PubMed
Summary
This summary is machine-generated.

We developed an all-optical helium scalar magnetometer using a triple resonance technique. This design eliminates dead angles and requires only one optical access point for enhanced performance.

More Related Videos

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
11:10

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model

Published on: May 23, 2018

12.4K
Author Spotlight: Advancements in In Vivo and Ex Vivo Retinal Imaging for Improved Glaucoma Diagnosis and Treatment
07:02

Author Spotlight: Advancements in In Vivo and Ex Vivo Retinal Imaging for Improved Glaucoma Diagnosis and Treatment

Published on: June 30, 2023

2.1K

Related Experiment Videos

Last Updated: Jan 21, 2026

Microfluidic Imaging Flow Cytometry by Asymmetric-detection Time-stretch Optical Microscopy ATOM
07:19

Microfluidic Imaging Flow Cytometry by Asymmetric-detection Time-stretch Optical Microscopy ATOM

Published on: June 28, 2017

10.7K
Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
11:10

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model

Published on: May 23, 2018

12.4K
Author Spotlight: Advancements in In Vivo and Ex Vivo Retinal Imaging for Improved Glaucoma Diagnosis and Treatment
07:02

Author Spotlight: Advancements in In Vivo and Ex Vivo Retinal Imaging for Improved Glaucoma Diagnosis and Treatment

Published on: June 30, 2023

2.1K

Area of Science:

  • Atomic physics
  • Quantum optics
  • Magnetometry

Background:

  • Scalar magnetometers are crucial for various applications, but often suffer from dead zones or complex optical setups.
  • Existing optical magnetometers may require multiple optical accesses or exhibit performance limitations.

Purpose of the Study:

  • To propose and experimentally validate a novel helium scalar magnetometer.
  • To demonstrate an all-optical implementation with no dead angles.
  • To present a triple resonance scheme for improved magnetometer performance.

Main Methods:

  • Utilizing a triple resonance scheme with parallel propagating, amplitude-modulated optical pumping and light-shift beams.
  • Employing a single optical access to the atomic cell for simplified implementation.
  • Developing a theoretical model to predict magnetometer behavior.

Main Results:

  • Experimental results show strong agreement with the developed theoretical model.
  • The proposed magnetometer design successfully operates without dead angles.
  • The all-optical implementation simplifies the experimental setup.

Conclusions:

  • The triple resonance helium scalar magnetometer offers a promising solution for high-performance magnetic field sensing.
  • The demonstrated all-optical approach with single-access simplifies practical implementation.
  • Further analysis of error sources will optimize magnetometer accuracy for specific applications.