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

Modes of Standing Waves - I

Modes of Standing Waves - I

A close look at earthquakes provides evidence for the conditions appropriate for resonance, standing waves, and constructive and destructive interference. A building may vibrate for several seconds with a driving frequency matching the building's natural frequency of vibration; this produces a resonance that results in one building collapsing while the neighboring buildings do not. Often, buildings of a certain height are devastated, while other taller buildings remain intact. This phenomenon...

Harmonic Mean

Harmonic Mean

The arithmetic mean is usually skewed towards the larger values in the data set. Therefore, to avoid this inherent bias towards smaller values, the harmonic mean is used.
Take the example of the speed of a car, which is the measure of the rate of distance traveled. If the vehicle traverses the same distance back-and-forth, its average speed equals the total distance traveled divided by the total time taken. However, if the car moves with varying speeds, then the arithmetic mean is more skewed...

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations

Identical bonds within a polyatomic group can stretch symmetrically (in-phase) or asymmetrically (out-of-phase). Similar to hydrogen bonding, these vibrations also influence the shape of the IR peak. Generally, asymmetric stretching frequencies are higher than symmetric stretching frequencies. For example, primary amines exhibit two distinct IR peaks between 3300–3500 cm−1 corresponding to the symmetric and asymmetric N-H stretching, while secondary amines exhibit a single stretching vibration...

You might also read

Related Articles

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

Sort by

Same author

32nd International Austrian Winter Symposium : Zell am See, the Netherlands. 20-23 January 2016.

EJNMMI research·2016

Same author

Pulsed quantum cascade laser-based CRDS substance detection: real-time detection of TNT.

Optics express·2012

Same author

Real-time FPGA data collection of pulsed-laser cavity ringdown signals.

Optics express·2012

Same author

Frequency domain analysis for laser-locked cavity ringdown spectroscopy.

Optics express·2011

Same author

Assessing the polarization of a quantum field from stokes fluctuations.

Physical review letters·2011

Same author

External phase-modulation interferometry.

Applied optics·2010

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

Search research articles

Related Experiment Video

Updated: Jun 22, 2026

Harmonic Nanoparticles for Regenerative Research

Harmonic Nanoparticles for Regenerative Research

Published on: May 1, 2014

Spatial mode discrimination using second harmonic generation.

V Delaubert, M Lassen, D R N Pulford

|June 18, 2009

Summary

This summary is machine-generated.

Second harmonic generation (SHG) enables control over optical beam spatial modes. This study demonstrates SHG-based spatial mode conversion using nonlinear phase matching, offering a robust method for generating higher-order modes.

More Related Videos

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

Related Experiment Videos

Last Updated: Jun 22, 2026

Harmonic Nanoparticles for Regenerative Research

Harmonic Nanoparticles for Regenerative Research

Published on: May 1, 2014

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

Area of Science:

Nonlinear Optics
Quantum Optics
Laser Physics

Background:

Second harmonic generation (SHG) is a nonlinear optical process.
Controlling spatial modes of optical beams is crucial for various applications.
Existing methods for spatial mode control can be complex or limited.

Purpose of the Study:

To demonstrate the use of SHG for controlling spatial mode structures of optical beams.
To investigate the conversion of transverse electric modes in SHG output.
To present a predictable and robust technique for spatial mode conversion via nonlinear phase matching.

Main Methods:

Experimental demonstration of higher-order spatial mode generation using SHG.
Utilizing nonlinear phase matching for mode conversion.
Employing wave propagation models with mode-dependent phase shifts to describe the effect.

Main Results:

Successful generation of higher-order spatial modes through SHG.
Demonstration of predictable and robust spatial mode conversion.
Validation of experimental results with theoretical wave propagation models.

Conclusions:

SHG is an effective technique for controlling spatial mode structures.
Nonlinear phase matching provides a robust method for transverse electric mode conversion in SHG.
This detailed study offers insights into spatial mode conversion in SHG with potential applications.