Studies of Optical Augmentation With Picosecond Pulses. Picosecond Pulses for Resolution of Optical Elements by Retroreflection
Abstract
Picosecond optical pulses generated by a neodymium-glass mode- locked laser were employed in laboratory measurements of the retro-reflection from optical surfaces. These measurements were directed at a determination of the minimum separation distance between surfaces which could be resolved using either a photodiode or an image converter camera for detection. A minimum resolvable distance of 7.5 cm was obtained with a photodiode, and the camera yielded a value of 1.5 cm. In addition calculations have been made of the range at which the retroreflection technique may be employed for analyzing optical elements using short pulses. Ranges of several kilometers appear feasible.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1971
- Accession Number
- ADA407138
Entities
People
- Herbert Rabin
- Robert C. Eckardt
Organizations
- United States Naval Research Laboratory