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Updated: May 12, 2026
08:22
Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
Published on: August 6, 2018
Ultrashort pulse coherence properties in coherent linear amplifiers.
Laleh Mokhtarpour1, Sergey A Ponomarenko
1Department of Electrical and Computer Engineering, Dalhousie University, Halifax, Nova Scotia, Canada. Laleh.mkht@dal.ca
Summary
Statistical pulses propagating in amplifying media become more coherent. Initially incoherent pulses develop uniform coherence across their temporal profile after amplification near optical resonance.
Area of Science:
- Optical physics
- Nonlinear optics
Background:
- Optical resonance amplifies and reshapes statistical pulses.
- Coherence properties are crucial for pulse propagation dynamics.
Purpose of the Study:
- To investigate the coherence evolution of statistical pulses in amplifying media near optical resonance.
- To analyze how amplification affects pulse coherence and its spatial uniformity.
Main Methods:
- Theoretical examination of small-area, intrinsically stationary statistical pulses.
- Analysis of pulse propagation in coherent linear amplifying media.
- Focus on Gaussian Schell-model pulses near optical resonance.
Main Results:
- Amplifying media act as coherent linear amplifiers, modifying pulse characteristics.
- Initially nearly incoherent Gaussian Schell-model pulses transition to a highly coherent state.
- The state of coherence becomes nearly uniform across the pulse's temporal profile.
Conclusions:
- Coherent linear amplification significantly enhances pulse coherence.
- Pulse propagation in resonant amplifying media leads to a uniform coherence state.
- This phenomenon has implications for optical communications and pulse shaping.
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