Laser Detection and Discrimination System.
Abstract
Magnesium oxide sensing material is pretreated and char ged by UV radiation to identify impingement thereon of radiation from a near infrared laser source by detection of blue emissions which persist for an unusually long period of time, avoiding frequent respotting and recharging. When heated to thermoluminescence peaks above room temperature by irradiation from a far infrared laser source, the magnesium oxide exhibits green luminescence enabling wavelength discrimination between detection of near and far infrared laser sources. Such pretreated magnesium oxide also produces green emissions when irradiated by UV laser sources, to distinguish between detection of the UV laser sources and the far infrared laser sources by discrimination between different fading behaviors of the green emissions. Patent applications. (rrh)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 16, 1989
- Accession Number
- ADD014301
Entities
People
- G. P. Summers
- K. Charkrabarti
- V. K. Mathur
Organizations
- United States Department of the Navy