Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

A pulse is a short burst of radio waves distributed over a range of frequencies that simultaneously excites all the nuclei in the sample. Upon passing a radio frequency pulse along the x-axis, the nuclei absorb energy corresponding to their Larmor frequencies and achieve resonance. This shifts the net magnetization vector from the z-axis toward the transverse plane. This angle of rotation of the magnetization vector, or the flip angle, is proportional to the duration and intensity of the pulse.

You might also read

Related Articles

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

Sort by

Same author

Spin-multiplexed point spread function engineering via dielectric metasurface for simultaneous optical differentiation and high-resolution imaging.

Light, science & applications·2026

Same author

Three-Dimensional Magneto-Optical Trap Beam Delivery with Scalable Wafer-Level Optics.

ACS photonics·2026

Same author

Generation of Independently Tailored Vector Vortex Beams Array via a Silicon Carbide Metasurface.

Nano letters·2026

Same author

Longitudinally engineered metasurfaces for 3D vectorial holography.

Light, science & applications·2026

Same author

Light-Matter Interaction in Ultrastable Tunneling Nanogaps.

ACS nano·2025

Same author

Potential short-term shift in oral microbiota of patients with stage III-IV periodontitis and type 2 diabetes treated by non-surgical periodontal therapy.

Journal of dental sciences·2025

Search research articles

Related Experiment Video

Updated: Aug 24, 2025

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Synthesizing ultrafast optical pulses with arbitrary spatiotemporal control.

Lu Chen^1,2, Wenqi Zhu^1,2, Pengcheng Huo³

¹National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.

Science Advances

|October 26, 2022

Summary

Researchers developed a versatile method to precisely control ultrafast optical transients using metasurfaces. This breakthrough allows arbitrary control over light

More Related Videos

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

Related Experiment Videos

Last Updated: Aug 24, 2025

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

Area of Science:

Photonics
Nanotechnology
Quantum Optics

Background:

Precise control of light states, from high-energy pulses to single photons, is crucial in photonics.
This control enables advanced techniques like spatiotemporal probing and coherent control of light-matter interactions.
Current methods face limitations in generating complex or inaccessible light states.

Purpose of the Study:

To present a versatile approach for synthesizing ultrafast optical transients with arbitrary spatiotemporal control.
To leverage nanoscale light manipulation using metasurfaces in a Fourier transform setup.
To enable the generation of complex states of structured space-time wave packets.

Main Methods:

Utilizing metasurfaces for multifunctional nanoscale light control.
Implementing a Fourier transform setup for light manipulation.
Achieving ultrawide bandwidth with high spectral and spatial resolution.

Main Results:

Demonstrated arbitrary control over the complete spatiotemporal evolution of ultrafast optical transients.
Successfully synthesized complex states of structured space-time wave packets.
The approach supports ultrawide bandwidth with simultaneous high spectral and spatial resolution.

Conclusions:

The developed method offers unprecedented control over ultrafast optical transients.
This technique is expected to advance coherent ultrafast light-matter interactions.
Potential applications include microscopy, communications, and nonlinear optics.