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

IR Spectrum Peak Broadening: Hydrogen Bonding01:23

IR Spectrum Peak Broadening: Hydrogen Bonding

The vibrational frequency of a bond is directly proportional to its bond strength. As a result, stronger bonds vibrate at higher frequencies, while weaker bonds vibrate at lower frequencies. The stretching vibration of the strong O–H bond in alcohols and phenols (very dilute solution or gas phase) appears as a sharp peak at 3600–3650 cm−1.
However, the extent of hydrogen bonding influences the observed stretching frequency and band broadening. Intermolecular or intramolecular hydrogen bonding...
IR Absorption Frequency: Hybridization01:21

IR Absorption Frequency: Hybridization

Hydrocarbons such as alkanes, alkenes, and alkynes show characteristic C–H stretching absorption bands. These IR stretching frequencies depend on the hybridization of the involved carbon atom and can be explained in terms of the s character of each hybridized atomic orbital.
Among the sp, sp2, and sp3 hybridized orbitals, sp orbitals have the maximum s character (50%). Consequently, the electrons are held more closely to the nucleus, resulting in stronger and shorter C–H bonds that stretch at a...

You might also read

Related Articles

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

Sort by
Same author

Magnetic resonance control of spin-correlated radical pair dynamics in vivo.

Nature·2026
Same author

Quantum spin resonance in engineered proteins for multimodal sensing.

Nature·2026
Same author

Transverse orbital angular momentum of spatiotemporal optical vortices: setting the record straight.

Optics express·2025
Same author

Laser based 100 GeV electron acceleration scheme for muon production.

Scientific reports·2025
Same author

Mechanism of Giant Magnetic Field Effect in a Red Fluorescent Protein.

Journal of the American Chemical Society·2025
Same author

Meter-scale supersonic gas jets for multi-GeV laser-plasma accelerators.

The Review of scientific instruments·2025

Related Experiment Video

Updated: Jul 3, 2026

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
09:38

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

Broadband terahertz lasing in aligned molecules.

Andrew G York1, H M Milchberg

  • 1Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, MD 20742, USA. Andrew.G.York+opex@gmail.com

Optics Express
|July 9, 2008
PubMed
Summary
This summary is machine-generated.

Researchers simulated laser-aligned molecules amplifying terahertz radiation. This breakthrough enables high-energy amplification of few-cycle pulses, a first for terahertz frequencies.

More Related Videos

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Related Experiment Videos

Last Updated: Jul 3, 2026

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
09:38

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Area of Science:

  • Physics
  • Quantum Optics
  • Molecular Spectroscopy

Background:

  • Terahertz (THz) radiation lacks a demonstrated broadband amplifying medium.
  • Efficient amplification is crucial for advancing THz technologies.

Purpose of the Study:

  • To investigate the potential of laser-aligned molecules as a broadband amplifying medium for THz radiation.
  • To demonstrate high-energy amplification of few-cycle THz pulses.

Main Methods:

  • Computational simulations were performed.
  • Laser-induced molecular alignment was modeled.
  • THz wave propagation and amplification through the aligned molecular medium were analyzed.

Main Results:

  • Simulations show laser-aligned molecules can amplify broadband THz radiation.
  • The proposed method allows for high-energy amplification of few-cycle pulses.
  • This represents a novel approach to THz amplification.

Conclusions:

  • Laser-aligned molecules offer a promising new avenue for broadband THz amplification.
  • This work paves the way for developing new THz sources and applications.