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

Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

1.7K
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...
1.7K
IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration01:16

IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration

3.6K
A covalently bonded heteronuclear diatomic molecule can be modeled as two vibrating masses connected by a spring. The vibrational frequency of the bond can be expressed using an equation derived from Hooke's law, which describes how the force applied to stretch or compress a spring is proportional to the displacement of the spring. In this case, the atoms behave like masses, and the bond acts like a spring.
According to Hooke's law, the vibrational frequency is directly proportional to...
3.6K
NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences01:17

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

2.0K
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.
2.0K
Atomic Absorption Spectroscopy: Instrumentation01:22

Atomic Absorption Spectroscopy: Instrumentation

2.1K
An atomic absorption spectrophotometer (AAS) comprises several components: a radiation source, an atomizer, a monochromator, and a detector. The radiation source can be a hollow-cathode lamp (HCL) or an electrodeless-discharge lamp (EDL), both of which provide a narrow emission line of the required wavelength. However, some instruments use continuum sources and high-resolution monochromators to achieve a narrow range of radiation.
The atomizer used in AAS can be either a flame atomizer or an...
2.1K
IR Spectroscopy: Molecular Vibration Overview01:24

IR Spectroscopy: Molecular Vibration Overview

6.0K
When Infrared (IR) radiation passes through a covalently bonded molecule, the bonds transition from lower to higher vibrational levels. The fundamental vibrational motions that result in infrared absorption can be classified as stretching or bending vibrations.
Stretching vibrations are vibrational motions that occur along the bond line, changing the bond length or distance between two bonded atoms. They are further distinguished as symmetric or asymmetric. In symmetric stretching, the...
6.0K
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

950
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy  (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
950

You might also read

Related Articles

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

Sort by
Same author

Safety First: A Longitudinal Study of Technology Adoption in a Nursing Home.

Studies in health technology and informatics·2026
Same author

Measurement setup for Nernst and Seebeck effect at high temperatures and magnetic fields tested on elemental bismuth and full-Heusler compounds.

The Review of scientific instruments·2024
Same author

Small bowel metastasis from embryonal rhabdomyosarcoma of the extremity- a case report.

South African journal of surgery. Suid-Afrikaanse tydskrif vir chirurgie·2024
Same author

2-Desaza-annomontine (C81) impedes angiogenesis through reduced VEGFR2 expression derived from inhibition of CDC2-like kinases.

Angiogenesis·2024
Same author

Heat and shear stability of particle stabilised foams for application in gluten-free bread.

Journal of food science and technology·2023
Same author

On-demand generation of soliton molecules through evolutionary algorithm optimization.

Optics letters·2021

Related Experiment Video

Updated: Mar 25, 2026

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

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

10.3K

Rovibrational hybrid fs/ps CARS using a volume Bragg grating for N₂ thermometry.

M Scherman, M Nafa, T Schmid

    Optics Letters
    |February 25, 2016
    PubMed
    Summary

    Coherent anti-Stokes Raman scattering (CARS) achieved high-resolution N2 spectra using a hybrid femtosecond/picosecond laser. This advancement enables precise gas-phase thermometry by resolving rovibrational structures.

    More Related Videos

    Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
    10:42

    Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

    Published on: March 22, 2019

    6.7K
    High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
    10:40

    High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

    Published on: June 28, 2016

    8.0K

    Related Experiment Videos

    Last Updated: Mar 25, 2026

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

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation

    Published on: February 4, 2017

    10.3K
    Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
    10:42

    Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

    Published on: March 22, 2019

    6.7K
    High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
    10:40

    High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

    Published on: June 28, 2016

    8.0K

    Area of Science:

    • Spectroscopy
    • Laser Physics
    • Physical Chemistry

    Background:

    • Coherent anti-Stokes Raman scattering (CARS) is a powerful nonlinear optical technique.
    • High-resolution spectral analysis is crucial for accurate thermometry.
    • Simultaneous rotational and vibrational analysis offers comprehensive thermodynamic insights.

    Purpose of the Study:

    • To develop a high-resolution CARS technique for gas-phase thermometry.
    • To resolve the Q-branch rovibrational structure of N2 spectra.
    • To demonstrate a compact experimental setup for hybrid femtosecond/picosecond CARS.

    Main Methods:

    • Recording CARS spectra of N2 using a hybrid femtosecond/picosecond laser regime.
    • Achieving 0.7 cm(-1) spectral resolution.
    • Synchronizing narrowband picosecond probe pulses with broadband femtosecond pump and Stokes pulses.
    • Utilizing a single femtosecond ytterbium-laser source and a volume Bragg grating.

    Main Results:

    • Successfully resolved the Q-branch rovibrational structure of N2.
    • Demonstrated the capability for simultaneous rotational and vibrational thermometry.
    • Achieved high spectral resolution (0.7 cm(-1)) in a compact experimental setup.

    Conclusions:

    • The developed hybrid femtosecond/picosecond CARS technique is suitable for precise gas-phase thermometry.
    • The resolved spectral structure provides detailed information for thermodynamic measurements.
    • The compact experimental design offers practical advantages for spectroscopic applications.