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

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences01:17

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.
MOSFET Amplifiers01:17

MOSFET Amplifiers

The MOSFET, when operating in its active region, functions as a voltage-controlled current source. In this region, the gate-to-source voltage controls the drain current. This principle underlies the operation of the transconductance MOSFET amplifier. The output current is directed through a load resistor to convert this amplifier into a voltage amplifier. The output voltage is then obtained by subtracting the voltage drop across the load resistance from the supply voltage. This process results...

You might also read

Related Articles

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

Sort by
Same author

Improvement of diffraction efficiency of dielectric transmission gratings using anti-reflection coatings.

Optics express·2013
Same author

Quantum path selection in high-harmonic generation by a phase-locked two-color field.

Optics express·2008
Same author

5-fs, Multi-mJ, CEP-locked parametric chirped-pulse amplifier pumped by a 450-nm source at 1 kHz.

Optics express·2008
Same author

Frequency-resolved optical gating of isolated attosecond pulses in the extreme ultraviolet.

Physical review letters·2007
Same author

Cloning, functional expression and promoter analysis of xylanase III gene from Trichoderma reesei.

Applied microbiology and biotechnology·2006
Same author

Acute generalized exanthematous pustulosis induced by dexamethasone injection.

Dermatology (Basel, Switzerland)·1996

Related Experiment Video

Updated: Jul 12, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

1.5 mJ, 6.4 fs parametric chirped-pulse amplification system at 1 kHz.

S Adachi1, H Ishii, T Kanai

  • 1Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan. adachi@issp.u-tokyo.ac.jp

Optics Letters
|September 4, 2007
PubMed
Summary

Researchers developed a novel optical parametric chirped-pulse amplification (OPCPA) system. This system achieves a record-shortest 6.4 fs pulse width and highest average power for few-cycle OPCPA, advancing ultrafast laser technology.

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 12, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

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:

  • Ultrafast laser science
  • Nonlinear optics
  • Laser engineering

Background:

  • Optical parametric chirped-pulse amplification (OPCPA) is a powerful technique for generating high-energy, ultrashort laser pulses.
  • Existing OPCPA systems face limitations in achieving both extremely short pulse durations and high average powers simultaneously.

Purpose of the Study:

  • To develop and demonstrate a novel OPCPA system capable of producing few-cycle pulses with unprecedentedly short durations.
  • To achieve the highest average power output for few-cycle OPCPA systems.

Main Methods:

  • Utilized a newly developed 100 ps Ti:sapphire pump laser, optically synchronized with OPCPA seed pulses.
  • Employed a three-stage parametric amplification process.
  • Implemented recompression techniques to achieve ultrashort pulse durations from the amplified output.

Main Results:

  • Demonstrated an OPCPA system delivering 1.5 mJ pulse energy at a 1 kHz repetition rate.
  • Achieved a record-shortest pulse width of 6.4 fs, the shortest reported for OPCPA.
  • Obtained the highest average power of 1.5 W for few-cycle OPCPA systems.

Conclusions:

  • The developed OPCPA system represents a significant advancement in ultrafast laser technology.
  • The achievement of 6.4 fs pulse width and high average power opens new possibilities for scientific research and applications requiring extreme light pulses.