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

Confocal Fluorescence Microscopy

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...

Raman Spectroscopy Instrumentation: Overview

Raman Spectroscopy Instrumentation: Overview

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...

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

Effects of divalent cations on diffusion dynamics of biological water confined between lipid membranes.

The Journal of chemical physics·2026

Same author

Machine-learning enhanced simulations predict graphene is microscopically hydrophobic and not wetting transparent.

Nature communications·2026

Same author

Atomic origins of electrochemical stability in acetate-based dual-cation water-in-salt electrolytes.

The Journal of chemical physics·2026

Same author

Ultrafast Band-Edge Carrier Dynamics in the Weyl Semiconductor Tellurium Microcrystal.

The journal of physical chemistry letters·2026

Same author

Principles of Circular Dichroism Detection Using Vector Vortex Beam and Orbital Angular Momentum Sorting.

The journal of physical chemistry. A·2026

Same author

Effect of single xeno-nucleic acid replacement on the fluorescence of DNA-encapsulated silver nanoclusters.

Nanoscale advances·2026

Same journal

Data-Driven Exploration of the Polyethylene Catalyst Chemical Space via Machine Learning.

The journal of physical chemistry letters·2026

Same journal

Role of Ultrafast Electron-Thermal-Phonon Interactions in High Harmonic Generation and Dephasing from Graphene.

The journal of physical chemistry letters·2026

Same journal

Real-Time Vibrational Spectroscopy Reveals an Inversion Transition State in the Photoisomerization of Phenylazoimidazole.

The journal of physical chemistry letters·2026

Same journal

Precursor-Directed Self-Assembly in Hydrothermal Carbon Nitride Nanostructures Revealed by Nano-FTIR.

The journal of physical chemistry letters·2026

Same journal

Correction to "Equation-of-Motion Block-Correlated Coupled Cluster Method for Excited Electronic States of Strongly Correlated Systems".

The journal of physical chemistry letters·2026

Same journal

Rationalizing Stacking-Dependent Charge Injection Dynamics in Radical-Based Organic Light-Emitting Diodes.

The journal of physical chemistry letters·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Oct 16, 2025

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

Coherent Nonlinear Spectroscopy with Multiple Mode-Locked Lasers.

Minhaeng Cho^1,2

¹Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science (IBS), Seoul 02841, Republic of Korea.

The Journal of Physical Chemistry Letters

|October 15, 2021

Summary

This summary is machine-generated.

Multiple mode-locked lasers enable advanced nonlinear spectroscopy for studying chemical and biological dynamics. Asynchronous optical sampling allows efficient investigation of relaxation processes in chromophores.

More Related Videos

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

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Related Experiment Videos

Last Updated: Oct 16, 2025

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

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

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Area of Science:

Physical Chemistry
Spectroscopy
Laser Physics

Background:

Coherent multidimensional spectroscopy is crucial for understanding chemical and biological systems.
Traditional methods use mechanical delays to control ultrashort laser pulses.
Advancements allow nonlinear spectroscopy with multiple mode-locked lasers.

Purpose of the Study:

To discuss developments in multiple mode-locked laser techniques for time-resolved nonlinear spectroscopy.
To explore applications in studying chromophores in condensed phases.
To present a perspective on these advanced spectroscopic approaches.

Main Methods:

Utilizing multiple mode-locked lasers with stabilized repetition frequencies.
Employing asynchronous optical sampling for automatic delay time scanning.
Performing time-resolved nonlinear vibrational, electronic, or vibrational-electronic spectroscopy.

Main Results:

Demonstrates the capability of multiple mode-locked lasers for sophisticated spectroscopic analysis.
Highlights asynchronous optical sampling as an efficient method for studying dynamics.
Enables detailed investigation of relaxation processes in photochemical and photobiological phenomena.

Conclusions:

Multiple mode-locked laser techniques offer powerful tools for time-resolved nonlinear spectroscopy.
Asynchronous optical sampling significantly enhances the efficiency of dynamic studies.
These methods provide new insights into the behavior of chromophores in condensed phases.