100-mJ class, sub-two-cycle, carrier-envelope phase-stable dual-chirped optical parametric amplification.

Area of Science:

• Laser physics
• Nonlinear optics
• Ultrafast science

Background:

• Generating ultrashort, high-energy laser pulses is crucial for advanced scientific research.
• Carrier-envelope phase (CEP) stabilization is essential for precise control of ultrafast phenomena.

Purpose of the Study:

• To demonstrate the generation of high-energy, sub-two-cycle, CEP-stable infrared laser pulses.
• To confirm the pulse duration and CEP stability using high harmonic generation.
• To explore the potential for generating isolated attosecond pulses.

Main Methods:

• Utilized dual-chirped optical parametric amplification (DC-OPA).
• Employed type-I Bismuth Borate (BiB3O6 or BiBO) crystals.
• Confirmed sub-two-cycle pulse duration and CEP stabilization via CEP-dependent high harmonic generation (HHG).

Main Results:

• Generated >100 mJ, 10.4 fs, 10 Hz, CEP-stable laser pulses centered at 1.7 µm.
• Achieved a peak power of 10 TW.
• Demonstrated record-high pulse energy and peak power for sub-two-cycle CEP-stable IR optical parametric amplification.

Conclusions:

• The developed laser source represents a significant advancement in ultrafast laser technology.
• The high-energy, CEP-stable IR pulses are promising for applications like high harmonic generation and attosecond pulse generation.
• Future work could focus on generating high-energy water window isolated attosecond pulses (IAPs).