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 Experiment Videos

Ultrafast time-domain spectroscopy based on high-speed asynchronous optical sampling.

A Bartels1, R Cerna, C Kistner

  • 1Department of Physics and Center for Applied Photonics, University of Konstanz, D-78457 Konstanz, Germany.

The Review of Scientific Instruments
|April 7, 2007
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Post-synthetic benzylation of the mRNA 5' cap <i>via</i> enzymatic cascade reactions.

Chemical science·2023
Same author

High-energy molecular-frame photoelectron angular distributions: a molecular bond-length ruler.

Physical chemistry chemical physics : PCCP·2023
Same author

Surface plasmon-based detection for picosecond ultrasonics in planar gold-dielectric layer geometries.

Photoacoustics·2023
Same author

Investigating charge-up and fragmentation dynamics of oxygen molecules after interaction with strong X-ray free-electron laser pulses.

Physical chemistry chemical physics : PCCP·2022
Same author

Ion and Electron Momentum Distributions from Single and Double Ionization of Helium Induced by Compton Scattering.

Physical review letters·2022
Same author

A Prospective Study to Examine Responsiveness and Minimally Important Differences (MIDs) for the CLEFT-Q Scales Following Three Cleft-Specific Operations.

The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association·2021
Same journal

Cluster assisted soft-landing hub (CLASH): An instrument for surface desorption and deposition using a pulsed cluster ion source.

The Review of scientific instruments·2026
Same journal

Influence of pre-ionization parameters on multi-channel discharge characteristics of field-distortion switch gaps.

The Review of scientific instruments·2026
Same journal

A Joule-Thomson low-temperature scanning tunneling microscope with vector magnet and rotatable scanning head.

The Review of scientific instruments·2026
Same journal

Fiber-optic triggering of a two-stage high-current linear transformer driver with laser energy below 100 μJ.

The Review of scientific instruments·2026
Same journal

Optimization of laboratory-scale x-ray absorption spectroscopy (XAS) apparatus for nuclear fuel research.

The Review of scientific instruments·2026
Same journal

Compressed multi-scale entropy and its application in mechanical fault diagnosis.

The Review of scientific instruments·2026
See all related articles

High-speed asynchronous optical sampling (ASOPS) enables ultrafast time-domain spectroscopy by eliminating mechanical scanners. This novel technique achieves high-speed data acquisition and superior time-delay resolution for advanced spectroscopic applications.

Area of Science:

  • Spectroscopy
  • Ultrafast phenomena
  • Optical physics

Background:

  • Conventional time-domain spectroscopy (TDS) relies on mechanical delay scanners, which introduce systematic errors.
  • Ultrafast time-domain spectroscopy requires precise control over pulse arrival times.
  • Existing TDS methods have limitations in scan speed and resolution.

Purpose of the Study:

  • To introduce and demonstrate a high-speed asynchronous optical sampling (ASOPS) system for ultrafast spectroscopy.
  • To eliminate systematic errors associated with mechanical delay scanners in TDS.
  • To achieve significantly faster data acquisition and higher resolution in spectroscopic measurements.

Main Methods:

  • Utilized two mode-locked femtosecond Ti:sapphire oscillators with a fixed 10 kHz repetition frequency difference.

Related Experiment Videos

  • Implemented a master-slave configuration with a frequency shifter for offset locking.
  • Employed asynchronous optical sampling to achieve a 1 ns time-delay sweep within 100 microseconds.

    • Main Results:

    • Achieved a signal resolution of 6 x 10(-7) in 1 second for optical pump-probe spectroscopy.
    • Obtained high-resolution terahertz TDS spectra with 37 dB SNR in 1 second and 57 dB SNR in 2 minutes.
    • Demonstrated a time-delay resolution better than 160 fs.
    • Showcased an all-optical oscilloscope functionality with >3000 GHz bandwidth and 1 GHz frequency resolution.

    Conclusions:

    • High-speed ASOPS overcomes limitations of conventional TDS, enabling faster and more accurate measurements.
    • The novel offset-locking technique provides unprecedented time-delay resolution.
    • ASOPS offers a powerful new tool for ultrafast spectroscopy and optical measurements.