Related Experiment Video
Updated: Jul 18, 2026
06:16
Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing
Published on: April 25, 2019
Single attosecond pulses from high harmonics driven by self-compressed filaments.
Himadri S Chakraborty1, Mette B Gaarde, Arnaud Couairon
1Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803-4001, USA.
Optics Letters
|November 30, 2006
Summary
We demonstrate the generation of isolated subfemtosecond extreme ultraviolet (XUV) pulses. The pulse structure is highly sensitive to the driving infrared pulse
Area of Science:
- * Ultrafast laser science
- * Nonlinear optics
- * Atomic and molecular physics
Background:
- * Generating ultrashort light pulses is crucial for probing ultrafast phenomena.
- * Harmonic generation is a key technique for producing extreme ultraviolet (XUV) light.
- * Controlling the temporal structure of XUV pulses is essential for precise measurements.
Purpose of the Study:
- * To demonstrate the generation of isolated subfemtosecond XUV pulses.
- * To investigate the influence of driving pulse properties on XUV pulse characteristics.
- * To understand the role of self-compression in shaping ultrafast laser pulses.
Main Methods:
- * Filamentation-induced self-compression of few-cycle infrared pulses in neon.
- * High harmonic generation in argon gas.
- * Computational modeling of pulse propagation and harmonic generation.
Main Results:
- * Successful generation of isolated subfemtosecond XUV pulses.
- * Demonstrated sensitivity of XUV pulse time structure to driving pulse amplitude and phase modulation.
- * Identified self-compression in neon as a critical step for pulse shaping.
Conclusions:
- * Isolated subfemtosecond XUV pulses can be generated using a cascaded process involving self-compression and harmonic generation.
- * Precise control over the driving pulse's amplitude and phase modulation is key to tailoring XUV pulse characteristics.
- * This method offers a pathway to generating precisely shaped ultrashort XUV light sources for advanced applications.
