UltraFast Innovations
KAUAI — Vis-NIR Achromatic Phase Retarder / Quarter Waveplate (Negligible Dispersion)
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KAUAI is the perfect quarter waveplate for cutting-edge ultrafast applications. With its negligible dispersion across the visible–NIR range, KAUAI enables broadband polarization control without distorting the temporal profile of femtosecond pulses.
The retarder uses a reflective geometry that achieves a quarter-wave phase offset between s- and p-polarization components with virtually no added group-delay dispersion — making it ideal for few-cycle pulse experiments, time-resolved ellipsometry, magneto-optical Kerr effect (MOKE) measurements, and polarization-resolved spectroscopy.
Key Product Features
- Negligible group-delay dispersion across full operating band
- Visible–NIR achromatic operation
- Quarter-wave phase shift between s and p polarization
- Reflective design — no nonlinear bulk-material distortion
- Compact form factor
- Suitable for few-cycle pulse experiments
- Customizable wavelength range upon request
Applications
- Ultrafast polarization-resolved spectroscopy
- Magneto-optical Kerr effect (MOKE) experiments
- Time-resolved ellipsometry
- Femtosecond circular-dichroism measurements
Developed at the Max-Planck-Institute of Quantum Optics. UFI is a spin-off from LMU Munich and the Max Planck Society.
| Models | KAUAI |
|---|---|
| Operation | Vis-NIR achromatic quarter waveplate |
| Spectral range | Customizable across visible to NIR |
| Group-delay dispersion | Negligible |
| Phase retardation | Quarter-wave (90° between s/p) |
| Geometry | Reflective (multi-bounce design) |
| Applications | Few-cycle pulses, MOKE, time-resolved spectroscopy |
Specific spectral range and form factor tailored per application — contact UFI for custom configurations.
Source: UltraFast Innovations manufacturer datasheet. Download the brochure (PDF) from the Documents tab for full details.
No CAD drawings available for this product.
