Controlling the carrier-envelope phase of Raman-generated periodic waveforms

Area of Science:

• Quantum Optics
• Attosecond Science
• Nonlinear Optics

Background:

• Control over the carrier-envelope phase (CEP) is crucial for ultrafast waveform synthesis.
• Optical frequency combs provide a precise tool for generating and measuring light frequencies.

Purpose of the Study:

• To demonstrate control of the carrier-envelope phase (CEP) of ultrashort periodic waveforms.
• To synthesize arbitrary optical waveforms with femtosecond and subfemtosecond precision.

Main Methods:

• Generation of a Raman-based optical frequency comb by adiabatically driving molecular vibrational coherence.
• Utilizing a fundamental frequency beam and its second harmonic for comb generation.
• Employing heterodyne measurements for interpulse phase locking verification.

Main Results:

• Successful synthesis of ultrashort periodic waveforms from a Raman-generated optical frequency comb.
• Demonstrated full interpulse phase locking of the synthesized comb components.
• Achieved precise control over the carrier-envelope phase of the generated waveforms.

Conclusions:

• The developed method enables precise control over ultrashort waveform synthesis.
• This work paves the way for generating arbitrary waveforms in the femtosecond and subfemtosecond regimes.
• Establishes a foundation for advanced applications in ultrafast science and technology.