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

Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

192
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
192
¹³C NMR: ¹H–¹³C Decoupling01:04

¹³C NMR: ¹H–¹³C Decoupling

1.1K
The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
1.1K
Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

335
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
335
Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

301
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
301
Atomic Nuclei: Magnetic Resonance01:05

Atomic Nuclei: Magnetic Resonance

639
The number of nuclear spins aligned in the lower energy state is slightly greater than those in the higher energy state. In the presence of an external magnetic field, as the spins precess at the Larmor frequency, the excess population results in a net magnetization oriented along the z axis. When a pulse or a short burst of radio waves at the Larmor frequency is applied along the x axis, the coupling of frequencies causes resonance and flips the nuclear spins of the excess population from the...
639

You might also read

Related Articles

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

Sort by
Same author

Trends in Cardiovascular Diseases Burden in China, 1990-2023: A Global Burden of Disease Analysis.

JACC. Asia·2026
Same author

Advances in neuroimaging studies of thalamic abnormalities in children with attention deficit hyperactivity disorder.

Psychoradiology·2026
Same author

Identification of Drug Associated Factors for Gingival Disorders: A Real-World Pharmacovigilance Study.

International dental journal·2026
Same author

Giant bulk photovoltaic effect in an iron-based magnetic semiconductor.

Nature communications·2026
Same author

EXPRESS: Plasma metabolic signature of cardiovascular-kidney-metabolic syndrome and incident stroke: a nationwide prospective cohort study.

Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism·2026
Same author

Essential minerals and risk of pancreatic diseases: a large-scale prospective cohort study.

Frontiers in nutrition·2026
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: Jun 16, 2025

Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

12.8K

High-sensitivity and low-harmonic microwave detection using Rydberg atoms based on a loop-level structure.

Yu Tang, Shuang Ren, Chuang Yang

    Optics Express
    |June 14, 2025
    PubMed
    Summary
    This summary is machine-generated.

    We developed a new Rydberg atom sensor using a loop-level structure. This sensor offers high sensitivity and wide dynamic range for microwave electric field detection without a local oscillator.

    More Related Videos

    Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems
    09:57

    Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems

    Published on: February 10, 2020

    7.1K
    Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity
    11:30

    Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity

    Published on: March 6, 2017

    11.6K

    Related Experiment Videos

    Last Updated: Jun 16, 2025

    Gradient Echo Quantum Memory in Warm Atomic Vapor
    10:00

    Gradient Echo Quantum Memory in Warm Atomic Vapor

    Published on: November 11, 2013

    12.8K
    Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems
    09:57

    Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems

    Published on: February 10, 2020

    7.1K
    Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity
    11:30

    Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity

    Published on: March 6, 2017

    11.6K

    Area of Science:

    • Atomic physics
    • Quantum sensing
    • Electromagnetics

    Background:

    • Traditional superheterodyne Rydberg atom sensors require a local oscillator (LO) electric field.
    • These sensors can suffer from harmonic distortion and limited dynamic range.

    Purpose of the Study:

    • To propose and investigate a novel Rydberg atom sensor based on a loop-level structure.
    • To eliminate the need for an LO electric field in microwave (MW) detection.
    • To achieve high sensitivity and wide dynamic range with low harmonic distortion.

    Main Methods:

    • Utilized eigenfrequencies of energy levels as a reference in a loop-level structure.
    • Implemented a cesium atomic system based on a five-level loop structure for experimental validation.

    Main Results:

    • Achieved a sensitivity of 62 nVcm⁻¹Hz⁻¹/².
    • Demonstrated 30 dB of harmonic suppression, even in the nonlinear operational region.
    • Showcased approximately 20 dB higher harmonic suppression compared to the superheterodyne structure.

    Conclusions:

    • Loop-level-based atomic sensors offer high-sensitivity and wide-dynamic-range MW detection.
    • This design is suitable for receiving frequency- and phase-modulated signals insensitive to power variations.
    • The proposed sensor eliminates the need for an LO electric field, simplifying the system.