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Enhancement cavities for zero-offset-frequency pulse trains
Optics Letters
|September 23, 2015
Summary
Researchers optimized optical pulse enhancement by controlling cavity mirror phase to tune the carrier-envelope-offset frequency. This allows high-power, short-pulse generation, crucial for attosecond pulse creation and spectroscopy.
Area of Science:
- * Physics, Optics, Quantum Electronics
Background:
- * Optimal enhancement of broadband optical pulses in passive resonators depends on the seeding pulse train's carrier-envelope-offset frequency.
- * Achieving high average powers from short optical pulses is essential for advanced applications like attosecond pulse generation.
Purpose of the Study:
- * To demonstrate control over the carrier-envelope-offset frequency by tuning the phase of cavity mirrors.
- * To enable optimal enhancement of optical pulse trains for high-power applications.
Main Methods:
- * Controlled the phase of cavity mirrors to precisely tune the carrier-envelope-offset frequency.
- * Utilized a seeding pulse train with zero carrier-envelope-offset frequency.
Main Results:
- * Achieved multi-kW average powers for sub-30-femtosecond (fs) optical pulses with zero phase slip.
- * Demonstrated the enhancement of pulse trains generated by difference-frequency mixing.
Conclusions:
- * Controlling cavity mirror phase is a key method for optimizing optical pulse enhancement.
- * This technique is vital for generating attosecond pulses at high repetition rates and for mid-infrared spectroscopy applications.
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