Research
Optical Fabrication
- Enhancements for CCOS (computer controlled optical surfacing)
- Non-sequential CCOS optimization technique
- Special polishing tools for steep aspheres: Rigid Conformal Lap, Semi-flexible lap
- High speed shear mode grinding for aspheric surfaces
Optical Metrology
- Analysis and optimization for interferometric measurements
- Fabrication and characterization of CGH null correctors
- Fizeau interferometry of aspheres using spherical reference + CGH
- Enhancement of interferometry systems to reject vibration and coherent noise
- Error Analysis and Data Reduction for Interferometric Surface Measurements
- Measurements of large flat mirrors
- Swingarm Optical CMM (SOC)
- Software Configurable Optical Test System (SCOTS)
- Scanning pentaprism system for telescope primary mirrors
- Use of laser tracker system for surface measurements
- Cryogenic Thermal Mask for Space-cold Optical Testing for Space Optical Systems
- Interferometer Calibration using the Random Ball Test
Optical Engineering
- Alignment techniques for complex optical systems
- Lightweight mirror system using glass membrane with active rigid support