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A Multimodal Wide-Field Fourier-Transform Raman Microscope
Published on: December 30, 2025
Phase-locked pulses for two-dimensional spectroscopy by a birefringent delay line
Daniele Brida1, Cristian Manzoni, Giulio Cerullo
1IFN-CNR, Dipartimento di Fisica, Politecnico di Milano, Milano, Italy.
Optics Letters
|August 4, 2012
Summary
We developed a new system using birefringent wedges to create precisely controlled ultrashort pulse pairs. This breakthrough simplifies advanced spectroscopy techniques.
Area of Science:
- Optics and Spectroscopy
- Quantum Optics
Background:
- Ultrashort pulse pairs are crucial for advanced spectroscopic techniques.
- Existing methods for generating and controlling pulse pairs can be complex and limited in precision.
Purpose of the Study:
- To introduce a novel device for generating collinear, interferometrically locked ultrashort pulse pairs.
- To demonstrate precise control over pulse delay and stability.
Main Methods:
- Utilizing a translating wedge-based identical pulses encoding system.
- Employing birefringent wedges for precise delay control.
- Spanning a spectral range from UV to mid-IR.
Main Results:
- Achieved attosecond precision in pulse delay control.
- Demonstrated stability better than λ/360.
- Maintained pulse duration without degradation.
- Generated collinear, interferometrically locked ultrashort pulse pairs.
Conclusions:
- The translating wedge-based system offers a simplified approach to generating ultrashort pulse pairs.
- This technology is expected to significantly advance two-dimensional spectroscopy experiments.
- Provides precise and stable control over optical pulse parameters.
